Based on the mass ratio of the liquid given:
a. Moles of hydrogen = 11.2 moles
Moles of oxygen = 5.55 moles
b. The number of hydrogen atoms = 1.348 * 10²⁵
The number of oxygen atoms = 6.74 * 10²⁴ atoms
c. Moles of hydrogen is 2 moles
Moles of oxygen is 1 mole
d. The number of hydrogen atoms in one molecule is 2 atoms and oxygen is 1 atom.
The molecular mass of the liquid is 18 g/mol.
The molecular formula of the liquid is H₂O.
What is the mole ratio of hydrogen and oxygen in the liquid?The mole ratio of hydrogen and oxygen in the liquid is determined as follows:
Mole presents = 100 * mass ratio / molar mass
Moles of hydrogen = 100 * 11.19% / 1
Moles of hydrogen = 11.2 moles
Moles of oxygen = 100 * 88.81% / 16
Moles of oxygen = 5.55 moles
Number of hydrogen atoms = 11.2 moles * 2 * 6.02 * 10²³ atoms
The number of hydrogen atoms = 1.348 * 10²⁵
Number of oxygen atoms = 5.55 moles * 2 * 6.02 * 10²³ atoms
The number of oxygen atoms = 6.74 * 10²⁴ atoms
Moles of hydrogen = 18 * 11.19% / 1
Moles of hydrogen = 2 moles
Moles of oxygen = 18 * 88.81% / 16
Moles of oxygen = 1 mole
Moe ratio of hydrogen to oxygen is 2 : 1
Hence, the number of hydrogen atoms in one molecule is 2 atoms and oxygen is 1 atom.
The molecular mass of the liquid = 1 * 2 + 16 *1
The molecular mass of the liquid = 18 g/mol
The molecular formula of the liquid is H₂O.
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. What happens when metals react with water?
Answer:
Metals react with water to form oxides or hydroxides and release Hydrogen gas
Explanation:
consider the gas-phase reaction between nitric oxide and oxygen showing the initial concentrations of the reactants at a certain temperature
The gas-phase reaction between nitric oxide and oxygen showing the initial concentrations is 2NO(g)+O2(g)→2NO2(g).
Nitrogen dioxide, or NO2, is quickly formed when it combines with oxygen. A free radical is present in the diatomic molecule of nitric oxide, which is relatively unstable (i.e., an unpaired electron). To create the ions NO or NO+, the molecule can receive or lose one electron. A fuel and an oxidant, often atmospheric oxygen, engage in a high-temperature exothermic (heat-releasing) redox (oxygen-adding) chemical reaction during combustion that results in oxidized, frequently gaseous products in a mixture known as smoke. Nitric oxide is an odorless gas that has a pungent smell. It is a by-product of tobacco smoke, as well as propane, diesel, and gasoline engine exhaust, and it is the principal ingredient in photochemical smog.
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Isobars are an important feature shown on weather maps. They join up points which have equal values of.
Isobars are lines that join up points that have equal values of atmospheric pressure.
What are isobars?Isobars are lines that connect locations or points with the same atmospheric pressure on maps. The points are connected with respect to the time or the weekly, monthly, or yearly average of atmospheric pressure.
Isobars on maps play important role in the location of areas with low or high pressure and can inform us about the condition of a place over time as far as the atmospheric pressure is concerned.
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with reference to compound a below, label each compound as an identical molecule, an isomer, a resonance structure, or neither.
Label for each of the compounds given in the question are: 1) Isomer, 2) Isomer, 3) Resonance Structure, 4) Isomer 5) Neither.
A group of two or more Lewis structures known as resonance structures describe the electronic bonding of a single polyatomic species, including fractional bonds and fractional charges. The number of electrons in resonance structures should be constant; do not add or subtract any electrons. (Count the electrons to determine their number). Every resonance structure complies with the standards for writing Lewis Structures. Structure hybridization must be constant. By cyclically moving elections, it is possible to depict the two resonance configurations of the benzene ring. Multiple resonance structures can be found in conjugated double bonds.
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Helen goes to the doctor and has a thyroid test done. She receives 20 grams of radioactive iodine. After 8 hours, 10 grams of the iodine have broken down. After 16 hours, there are 5 grams of iodine left.
What is the half-life of the radioactive iodine?
8 hours
8 hours is the half-life of the radioactive iodine. The entire body is exposed to radiation risks from gamma rays. They can swiftly get through defences that alpha and beta particles can stop.
Like skin and clothing. Because of their powerful penetrating power, gamma rays may require several inches of a heavy substance, like lead, or even several feet of concrete, to be stopped. During radioactive decay, an atom's nucleus may emit gamma rays. They can easily penetrate the human body and travel tens of yards or more through the air. It takes a radioactive heavy, dense material, such several inches of lead or concrete, to shield this particularly penetrating form of ionising radiation.
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which of the following statements, i-iv, is/are true about the galvanic cell below? cu (s) | cu2 (aq) || ag (aq) | ag (s) given the following information:
There are constantly spontaneous oxidation-reduction events in galvanic cells. "H (2)" has a stronger propensity to liberate electrons in electrochemical cells.
H (2) is thus released at the anode, and Cu is deposited at the cathode. Here, Cu serves as the cathode and Ag as the anode. Similar to oxidation, when electrons are released from an electrode they produce aqueous ions in the solution, which reduces the mass of the electrode. A galvanic cell or voltaic cell is an electrochemical device that transforms the chemical energy of spontaneous redox reactions into electrical energy. electrical cell A voltaic cell is an electrochemical device that produces electricity through chemical processes.
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A solution with a pH of 7.5 would be described as: a) Very basic b) Slightly basic c) Slightly acidic d) Very acidic
Answer:
A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.
Explanation:
Im not really sure if this is correct sorry but i hope this could help :)
the use of chlorine to bleach cotton fibers replaced the standard methods that included using buttermilk to whiten the fibers. T/F
True; The use of chlorine to bleach cotton fibers replaced the standard methods that included using buttermilk to whiten the fibers.
The formulations of pool-grade chlorine, which you can typically purchase in pills, granules, or as a liquid, typically range in chlorine content from 65% to almost 100%. The name hypochlorous acid refers to pure chlorine.
The most widely used form of pool-grade chlorine is calcium hypochlorite, which is typically on the lower end of the concentration spectrum and comes in the form of granules or tablets. Trichloro-s-triazinetrione, or tri-chlor, is a common ingredient in tablet-based medications. When dissolved in pool water, a tri-chlor pill can produce about 100% pure chlorine.
Like Clorox, bleach in a container contains primarily water. About 95% of the bleach in your jug won't do anything to help clean your pool because it only contains 5% to 6% sodium hypochlorite. There are several bleach formulations that may contain perfumes and colors.
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Searching for the perfect artificial sweetener--great taste with no Calories--has been the focus of chemical research for some time. Molecules such as sucralose, aspartamine, and saccharin owe their sweetness to their size and shape. One theory holds that any sweetener must have three sites that fit into the proper taste buds on the tongue. This theory is appropriately known as the triangle theory. Research 3 artificial sweeteners to develop a model to show how the triangle theory operates.
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, one theory holds that any sweetener is triangle theory.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. Sweetness is a taste sensation that only requires interaction with receptors on our tongues.
Therefore, one theory holds that any sweetener is triangle theory.
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For each event stated, indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium: An up arrow indicates an increase in concentration; down arrow indicates decrease in concentration, and leaving it blank means there is no change in the concentration. CoC1?- (aq) 6H,0(1) == 4C1 (aq) Co(H,0)3 (aq) increasing the concentration of Cl decreasing the amount of HzO increasing the concentration of CoCl? Answer Bank
As the concentration of CO rises, the product's concentration, CO2, rises (), while the reactants' concentrations, CO(g) and O2(g), decline ().
Growing CO2 concentration: As CO(g) and O2(g) concentrations rise, CO(g) and O2(g) concentrations fall, and CO(g) and CO(g) concentrations, respectively, are reduced.
lowering the system's volume: The concentration of the reaction's reactants, CO(g) and O2(g), falls (), while the concentration of the product, CO2(g), increases (). Le Chatelier's principle states that for every chemical reaction in equilibrium, a change in the volume or concentration of any chemical species will cause the equilibrium of the reaction to shift in a way that minimizes the impact of the change. as follows: 2CO(g) + O2(g) 2CO2 (g).
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structure of quartz
each Si atom is in a tetrahedron surrounded by four O atoms and each O atom is a bridge connecting the corners of two tetrahedrons.
In Quartz, (SiO2), also known as the silica body, each Si atom is in a tetrahedron surrounded by four O atoms and each O atom is a bridge connecting the corners of two tetrahedrons.
Silicon dioxide, often known as silica, is an oxide of silicon that is most frequently found in nature as quartz and in a variety of living things. Its chemical formula is SiO2. In various parts of the world, silica makes up the majority of the sand. Silica is one of the most varied and prevalent families of materials, and it can be found both naturally and artificially. Some notable examples include fused quartz, fumed silica, silica gel, opal, and aerogels. It is used as an electrical insulator in the food, pharmaceutical, structural, microelectronic, and other industries. In the great majority of silicates, the silicon atom exhibits tetrahedral coordination, with four oxygen atoms around the central Si atom (see 3-D Unit Cell). SiO2 produces 3-dimensional network solids with tetrahedral covalent connections connecting each silicon atom to 4 oxygen atoms as a result. In contrast, CO2 is a linear molecule. The double bond rule is illustrated by the striking structural differences between carbon and silicon dioxides.
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Shown below is a balance. Based on this instrument, identify from the following list all the statements that are true if you were to use
this balance to measure the mass of a sample. (Note, the balance in the picture currently reads "0.00")
Choose one or more:
A. a mass measured on this balance will always have 3 significant digits.
B. the uncertainty is in the hundredth place.
C. the uncertainty is in the ones place.
D. a mass measured on this balance will always have 4 significant digits.
E. the uncertainty is in the tenths place.
F. the mass measured on this balance is known exactly.
G. a mass that falls between 1 gram and 9 grams measured on this balance will always have 3 significant figures.
H. a mass that falls between 10 grams and 80 grams measured on this balance will always have 3 significant figures.
I. a mass that falls between 100 and 200 grams measured on this balance will have 5 significant figures.
Based on the balance given, the statements that are true if you were to use this balance to measure the mass of a sample are option B and G.
A scale or balance is an instrument which is used to measure weight or mass of an object. These are also known as mass scales, weight scales, mass balances, and weight balances. The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum. There are several varieties of balances, with various limits on their accuracy. Two common kinds of balances are the centigram (0.00) and the analytical (0.0000). The uncertainty of a centigram balance is one hundredth of a gram (± 0.01 g). A mass that falls between 1 gram and 9 grams measured on this balance will always have 3 significant figures as it will read 1.00 or 9.00 on the scale.
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how do oxygen molecules interact differently with the systems and cells when you have asthma?
Answer:
In individuals with asthma, the airways (bronchial tubes) that carry air in and out of the lungs become narrowed, swollen, and inflamed due to an overactive immune response. This can lead to difficulty breathing, wheezing, coughing, and other symptoms.
During an asthma attack, the muscles around the airways may become tight and the lining of the airways may produce excessive mucus, further narrowing the airways and making it difficult for oxygen to reach the cells in the body. This can lead to low oxygen levels in the blood and cause symptoms such as shortness of breath and chest tightness.
In addition to these physical changes in the airways, individuals with asthma may also have an overactive immune response to certain triggers, such as allergens or irritants, which can further worsen inflammation and airway narrowing.
Treatment for asthma typically involves using medications to control inflammation and relax the muscles around the airways, as well as avoiding triggers that can worsen symptoms. By properly managing their asthma, individuals with the condition can often lead normal, active lives.
Explanation:
The tubes that carry air into and out of the lungs become irritated and constricted in people with asthma. This can make it difficult for air to enter and exit the lungs, which can cause symptoms including coughing, wheezing, and breathing problems.
Being less able to enter the lungs and reach the body's cells is one-way oxygen molecules can interact differently with the systems and cells in people with asthma. It is more difficult for oxygen to enter the lungs when the airways are constricted, which can result in a reduction in the amount of oxygen reaching the body's cells. This may cause symptoms including trouble breathing and difficulty engaging in physical activity.
In people with asthma, oxygen molecules can also affect the cells and systems in different ways by inducing an immunological reaction. When allergens or pollutants are breathed by asthmatic patients, their immune systems may be overly sensitive to them and may respond inappropriately. This may result in the release of inflammatory substances, which may further constrict the airways and hinder the absorption of oxygen by the lungs.
Inflammation and immune system overactivity can generally disrupt how oxygen molecules interact with the body's processes and cells in people with asthma, which can cause breathing problems and other symptoms.
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given the reaction: 234 91 pa x 0 -1e when the equation is correctly balanced the nucleus represented by x is
The reaction is given : ²³⁴Pa₉₁ -----> X + ⁰e₋₁ , the equation is balanced and the nucleus represented by X is ²³⁴U₉₂.
The balanced reaction is given as :
²³⁴Pa₉₁ -----> X + ⁰e₋₁
This reaction is the balanced reaction and X is represented the nucleus and is given as : ²³⁴U₉₂.
The given reaction is the nuclear reaction. the nuclear reaction is the reaction in which the nuclides are produced by the collision between the two atoms nuclei. the nuclear reaction are of the two types the nuclear fission and the nuclear fusion reaction. the nuclear fission is the splitting of the large nuclei in to the smaller ones.
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Determine the structure of C6H10, which upon oxidation gives acetic and isobutyric acid
Answer:CH
3
CH
2
CH
2
C≡C−CH
3
Explanation:
classify the sample according to its composition. check all that apply. classify the sample according to its composition.check all that apply. the sample is a homogeneous mixture. the sample is a compound. the sample is a pure element. the sample is a heterogeneous mixture.
option 2 - the sample is a compound. Compound sample: A compound contains a bond formed by a chemical reaction between two or more atoms. For instance, 2H2(g) + O2(g) = 2H2O.
Compound homogeneous mixture: A material in which more than one element is produced but both remain in the same phase. There will be consistency in the mixture. As an example, gas with gas, liquid with liquid, and so on. As an example, consider air, which is a gaseous mixture of oxygen, nitrogen, and carbon dioxide. Compound Heterogeneous mixture: A mixture in which the compound or elements used to make the mixture are in different phases. As an example, consider chalk (CaCO3 (solid) in water (H2O (liquid), which is a heterogeneous mixture.
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Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25°C, diamond changes to
graphite so slowly that the enthalpy change of the process must be obtained indirectly. Determine A
Hrxn for
C(diamond)
C(graphite)
with equations from the following list:
(1) C(diamond) + O₂(g) → CO₂(g)
(2) 2 CO₂(g) → 2 CO(g) + O₂(g)
(3) C(graphite) + O₂(g) → CO₂(g)
(4) 2 CO(g) → C(graphite) + CO₂(g)
AHoverall
KJ
AH = -395.4 kJ
AH= 566.0 kJ
AH=-393.5 kJ
AH = -172.5 kJ
The ΔH of the reaction for the formation of graphite from diamond is equal to -1.9 KJ/mol.
What is the heat of the formation of the reaction?The heat of formation can be described as the amount of heat absorbed or evolved when 1 mole of a substance is formed from its constituent elements, each substance being in its normal physical state.
We have to rearrange the provided equations in a way in which all molecules of O₂ and CO₂ can be eliminated:
2C (diamond) + 2O₂ (g) → 2CO₂ (g) ΔH₁= 2 × (-395.4 KJ)
2 CO₂ (g) → 2 CO(g) + O₂(g) ΔH₂ = 566.0 KJ
CO₂(g) → C (graphite) + O₂(g) ΔH₃= - 1 × (-393.5 KJ)
2CO (g) → C (graphite) + CO₂(g) ΔH₄= -172.5 KJ
When we eliminate the molecules that appear both in reactants and products, the total chemical reaction is the following:
2C (diamond) → 2C (graphite)
ΔH (total) = ΔH₁ + ΔH₂ + ΔH₃ + ΔH₄
ΔH (total) = 2 × (-395.4 KJ) + 566.0 KJ + (-1 × (-393.5 KJ)) - 172.5 KJ
ΔH (total) = 347.2 KJ
This is for 2 mol of C (diamond) which is converted into 2 mol of C (graphite). To find ΔH for the reaction of 1 mol C (diamond) to 1 mol (graphite) we have to divide it into 2:
ΔH = - 3.8/2 = -1.9 KJ/mol
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need part 3!! the following answers have been wrong: -42.12, -179.3, 30.514, -42.46, 60.8, -66.40, 777.614
The maximum amount of work produced by the cell is 0.31 coulombs, or 310 joules.
What is work?Work in physics is the transfer of energy from one object to another. It can be described as a force acting on an object over a distance, resulting in a change of energy of the object. Work is typically measured in joules (J). Work can be done by an applied force either pushing or pulling on an object to cause a displacement, or by a force causing a rotation or a change in the object’s shape. Work can also be done by gravity, in which an object is moved along the direction of a gravitational field. In all cases, work results in the object experiencing a change in energy.
The maximum amount of work produced by the cell can be calculated using the Nernst equation. The Nernst equation is used to calculate the voltage of a cell, and the amount of work produced by the cell is equal to the voltage multiplied by the total charge that passes through the cell.
The Nernst equation is given by:
E = E° - (RT/nF) ln Q
Where E is the voltage of the cell, E° is the standard potential of the cell, R is the ideal gas constant, T is the temperature in Kelvin, n is the number of electrons transferred in the reaction, F is the Faraday constant and Q is the reaction quotient.
For the given reaction, the standard potential is 0.77 V, the number of electrons transferred is 2, and the reaction quotient is the product of the partial pressure of oxygen and the activity of Fe2+, which is given by:
Q = (0.203 atm)(0.0745 M) = 0.01514
Therefore, the voltage of the cell is given by:
E = 0.77 - (8.314 J/molK)(298 K)/(2)(96485 C/mol) ln 0.01514 = 0.31 V
The maximum amount of work produced by the cell can then be calculated as the voltage multiplied by the total charge that passes through the cell. Assuming that the total charge is 1 coulomb, the maximum amount of work produced by the cell is 0.31 coulombs, or 310 joules.
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Question 20 (1 point) ✓ Saved A short circuit can cause ________ because there is nothing in the circuit to limit the current and absorb the electrical energy. Heat builds up quickly in the wire and power supply. (Lesson 4.05) an explosion a release of harmful chemicals a fire All of the above
A short circuit can cause giant spark ,because there is nothing in the circuit to limit the current and absorb the electrical energy. Heat builds up quickly in the wire and power supply. (Lesson 4.05) an explosion a release of harmful chemicals a fire All of the above
What is Circuit?
The point where the electrons enter the electrical circuit is known as the source, and the point where they depart is known as the return. Let's do a little experiment; you'll require the following:
Electrical tape, wire, and electric bulbs
power source
Only when there is at least one closed loop running from the positive to the negative end of the circuit is it considered complete. This is the most basic type of electrical circuit. A television's internal circuit is more intricate and made up of several parts
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List the numbers and types of atoms represented by these chemical formulas.a.Fe2O3b.KMnO4c.CH3d.NH4NO3
a. Fe2O3 - two iron atoms and three oxygen atoms.
b. KMnO4 - one potassium atom, one manganese atom, and four oxygen atoms.
c. CH3 - one carbon atom and three hydrogen atoms.
d. NH4NO3 - one nitrogen atom, four hydrogen atoms, and three oxygen atoms.
In chemistry, a chemical formula is a way of representing compounds using the symbols of the elements that make up the compound. Elements are represented by atomic symbols, and the number of atoms in each element is indicated by a number after the atomic symbol.
Fe2O3 - This chemical formula describes a compound called iron oxide, also known as hematite. "Fe" stands for iron, and "2" and "3" indicate that there are two iron atoms and three oxygen atoms in the compound.
KMnO4 - This chemical formula represents a compound called potassium permanganate. "K" is potassium, "Mn" is manganese, and "O4" indicates that the compound has four oxygen atoms.
CH3 - This chemical formula represents a compound called methane. "C" stands for carbon and "H3" indicates that the compound contains three hydrogen atoms.
NH4NO3 - This chemical formula represents a compound called ammonium nitrate. "N" stands for nitrogen, "H4" indicates that there are four hydrogen atoms, and "O3" indicates that the compound has three oxygen atoms.
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How many oxygen atoms are there in 3.45 grams of H2O?
According to the concept of Avogadro's number, there are 1.298×10²³ atoms in 3.45 grams of H₂O.
What is Avogadro's number?Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.
It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .
According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.
Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number
Substituting mass and molar mass of oxygen in above formula, number of atoms=3.45/16×6.023×10²³=1.298×10²³ atoms.
Thus , there are 1.298×10²³ atoms in 3.45 grams of H₂O.
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Voltaic cells are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow
spontaneously.
true or false
Answer: True. Voltaic cells, also known as galvanic cells, are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow spontaneously. Redox reactions involve the transfer of electrons from one species to another, and the flow of electrons through a circuit can be used to do work, such as powering an electric motor or a lightbulb. The potential difference between the two half-cells in a voltaic cell is called the cell potential, and it determines the direction and magnitude of the flow of electrons.
Explanation:
Name the type of chemical reaction that occurs when aluminum (Al) reacts with copper nitrate (Cu(NO3)2).
The type of chemical reaction that occurs when aluminum (Al) reacts with copper nitrate Cu(NO₃)₂ is a single displacement reaction.
What are chemical reactions?Chemicals reactions are reactions that result in permanent changes in the properties of the substances that undergo the changes.
Some examples of chemical reactions are:
Synthesis reactions - these are reactions in which a single product is obtained from the combination of two or more substances.
Combustion reactions - these are reactions where oxygen combines with other elements to release large amounts of heat and light.
Single displacement reactions - these are reactions in which an element or radical replaces another element in a compound.
For example, the reaction of aluminum with Cu(NO₃)₂.
2 Al + 3 Cu(NO₃)₂ --> 3 Cu + 2 Al(NO₃)₃
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if a copper bearing material 40 gram yeilds 5 gram of cuo the percentage of copper is
Answer:
12.5%
Explanation:
5÷40*100 = 12.5000000000000000000%
a compion whose molecules consist of c h and o was founnd to contain 62.04 c and 10.41 h and 2755 o give the emperical formula
The empirical formula of the compound is C3H6O
Number moles of carbon nc = 62.04/12 = 5.17
Number of moles of hydrogen nH = 10.41/1 = 10.41
Number of moles of Oxygen no = 27.55/16 = 1.72
Divide the number of moles by 1.72
nc = 5.17/1.72 = 3
nH = 10.41/1.72 = 6.05
no = 1.72/1.72 = 1
The empirical formula of the compound is C3H6O
The most straightforward whole number ratio of atoms in a compound is its empirical formula. The empirical formula of sulfur monoxide, abbreviated SO, and disulfuric dioxide, abbreviated S2O2, are two straightforward examples of this idea. As a result, the empirical formula for sulfur monoxide and disulfur dioxide, two compounds made of sulfur and oxygen, is the same. Their molecular formulae, which represent how many atoms are present in each molecule of a chemical compound, are different.
The number of atoms or their arrangement are not mentioned in an empirical formula. Many ionic chemicals, such calcium chloride (CaCl2), and macromolecules, like silicon dioxide, adhere to this criterion (SiO2)
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5. Sulfuryl chloride, SO2Cl2, is a highly reactive gaseous compound. When heated, it decomposes as follows: SOCI(g) = SO2(g) + Cl2(g). This decomposition is endothermic. A sample of 3.509 grams of SO2Cl2 is placed in an evacuated 1.00-liter bulb and the temperature is raised to 375 K. a) What would be the pressure in atmospheres in the bulb if no dissociation of the SO2Cl2(g) occurred? b) When the system has come to equilibrium at 375 K, the total pressure in the bulb is found to be 1.43 atmospheres. Calculate the partial pressures of SO2, Cl2, and SO-Cl, at equilibrium at 375 K. c) Give the expression for the equilibrium constant (either K, or K) for the decomposition of SO_C12(g) at 375 K. Calculate the value of the equilibrium constant you have given. d) If the temperature were raised to 500 K, what effect would this have on the equilibrium constant? Explain briefly.
The value of the Decomposition equilibrium is 2-1 =1.
pV=nRT. n=m/Mr = 3.509 / 135 = 0.026 moles.
a) p=nRT/V=0.026 x 0.082 x 375/1 = 0.8 atm.
b) SO2Cl2 (g) ⇌ SO2 (g) + Cl2 (g).
1.43 - 0.8 = 63
2-1 =1.
0.63 x 0.026 = 0,01638. 0.026 -0,01638= 0.00962 moles of SO2CL2.
0.01638 moles of SO2 and 0.01638 moles of Cl2.
0.01638 + 0.01638 + 0.00962 = 0.04238 moles general.
1.43 x 0.01638 / 0.04238 = 0.5526 atm of SO2 and Cl2.
1.43 x 0.00962 / 0.04238 = 0.3246 atm of SO2CL2.
c) 0.01638 x 0.01638/ 0.00962=0,0278902703
d) Will react turn to the right
Decomposition is endothermic:- Yes all decomposition reactions are endothermic. Decomposition reactions involve the breaking of bonds that require energy. Due to this decomposition reactions are generally endothermic in nature.
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(a) The pressure in the atmosphere would be = 0.800 atm.
(b) Partial pressure of [tex]P_{SO_{2}Cl_{2} } =0.170 atm[/tex]
Partial pressure of [tex]P_{SO_{2}}=0.630atm[/tex]
Partial pressure of [tex]P_{Cl_{2}=0.630 atm[/tex]
(c) Equilibrium constant at 375 K is 2.33 atm.
(d) If the temperature were raised to 500K, the value of the equilibrium constant will increase.
(a) Mass of [tex]SO_{2}Cl_{2}[/tex] = 3.509 g
Molar mass of [tex]SO_{2}Cl_{2}[/tex] = 135.0 g/mol
Thus, moles of [tex]SO_{2}Cl_{2}[/tex] are-
Mole of [tex]SO_{2}Cl_{2}[/tex][tex]=\frac{3.500g}{135.0g/mol}[/tex] [tex]=0.026moles[/tex]
The initial pressure of the [tex]SO_{2}Cl_{2}[/tex] is calculated using the Ideal gas law-
[tex]P_{SO_{2}Cl_{2} } =\frac{nRT}{V} =\frac{(0.026moles)(0.082Latm/molK)(375K)}{1.00L}[/tex]
[tex]P_{SO_{2}Cl_{2} } = 0.800atm[/tex]
Thus, the Initial pressure of [tex]SO_{2}Cl_{2}[/tex]= 0.800 atm.
(b) Now,
[tex]P_{Total} =1.43atm[/tex]
At equilibrium,
[tex]P_{Total} =P_{SO_{2}Cl_{2} } +P_{SO_{2} } +P_{Cl_{2} }[/tex]
Thus, using the data from ICE table, solve for x-
1.43 = (0.800 - x) + x + x(1.43) = 1.43 - 0.800 = 0.630 atm
Hence, at equilibrium at 375 K, the partial pressure of each species present is-
[tex]P_{SO_{2}Cl_{2} } = 0.800-0.630 =0.170atm[/tex]
[tex]P_{{SO_{2} } } = x=0.630atm[/tex]
[tex]P_{{Cl_{2} } } = x=0.630atm[/tex]
(c) The expression of the equilibrium constant in terms of pressure for the decomposition of [tex]SO_{2}Cl_{2}[/tex] is written as-
[tex]K_{P} =\frac{P_{SO_{2} .}P_{Cl_{2} } }{P_{SO_{2}Cl_{2} } }[/tex]
Using the partial pressure values at 375 K , solve for [tex]K_{P}[/tex]-
[tex]K_{P} = \frac{(0.630atm)(0.630atm)}{0.170atm} =2.33atm[/tex]
Hence, the equilibrium constant at 375 K is 2.33 atm.
(d) As the decomposition of [tex]SO_{2}Cl_{2}[/tex] is endothermic, thus on increasing the temperature, more heat is added, so the reaction will go in a forward direction producing more products.
Thus, [tex]K_{500}[/tex] > [tex]K_{375}[/tex]
Hence, if the temperature were raised to 500K, the value of the equilibrium constant will increase.
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Identify the options below that are results of decreasing the temperature of a system that includes an exothermic reaction in the forward direction. A. The concentration of the reactants increases. B. The concentration of the products increases. C. The equilibrium constant decreases. D. The equilibrium shifts toward the products.
If the reaction is exothermic as described, a rise in temperature will thus trigger the opposite reaction, which will result in a decrease in the amount of the products and an increase in the number of reactants. The reverse outcome will occur if the temperature is lowered.
B. The concentration of the products increases.
A reaction is defined as exothermic if the overall standard enthalpy change (H) is negative. Exothermic processes typically produce heat. Exergonic reaction, which the IUPAC defines as "... a reaction for which the overall standard Gibbs energy change G is negative," is frequently mistaken with the phrase.
Because "H" contributes significantly to "G," a strongly exothermic process is typically also exergonic. Exothermic and exergonic chemical reactions make up the majority of the impressive demonstrations in schools.
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please name and briefly describe 2 remedies a seller has under the ucc when the buyer has breached and the seller still possesses the goods.
2 remedies a seller has under the UCC when the buyer has breached and the seller still possesses the goods are that he can cancel the contract or withhold the delivery.
By contract, what did you mean?
An agreement between parties that establishes legal duties for both parties is known as a contract. Mutual consent, demonstrated by a valid offer and acceptance, sufficient consideration, capability, and legality are the fundamental components needed for the agreement to be a legally enforceable contract.
Contract with example: What is it?
A commitment made by one party to another that they will or won't take a particular action in the future. As an illustration, I'll offer you $3,500 to buy your car. An acceptance.
Therefore, it usually reflects the conditions of the offer—an indication, through speech or action, that both parties accept the terms of the contract.
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the decomposition of h2o2 is represented by the equation above. the reactuin us thermodynamically favorable
The decomposition of H2O2 is represented by the equation above. the reaction us thermodynamically favorable 4H₂O₂ → 4H₂O + 2O₂
The following diagram illustrates how hydrogen peroxide decomposes chemically;
2H₂O₂ → 2H₂O + O₂
As a result, one oxygen molecule and two water molecules result from the breakdown of two hydrogen peroxide molecules.
Numerous chemical substances spontaneously react with molecular oxygen to produce peroxides in the form of free radicals.
Given that there are four hydrogen peroxide molecules breaking down in the diagram, we have;
4H₂O₂ → 4H₂O + 2O₂
The results of the breakdown of the four molecules of hydrogen peroxide are depicted in the accompanying diagram.
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of cream at are added to an insulated cup containing of coffee at . calculate the equilibrium temperature of the coffee. you may assume no heat is lost to the cup or surroundings, and that any physical properties of cream and coffee you need are the same as those of water. be sure your answer has significant digits.
2H2 + O2 → 2H2O In an equation, certain substances are elements and others are compounds. Hydrogen and oxygen are elements and water is a compound in the equation above.
Water is actually created by a little more difficult reaction: 2H2 + O2 = 2H2O + Energy. The equation reads as follows in English: Two molecules of diatomic hydrogen (H2) must interact with one molecule of diatomic oxygen to form two molecules of water (H2O) (O2). The reaction is an illustration of hydrogen oxidation. The term "redox reaction" refers to a process where one species is reduced and another is oxidized. This is a redox reaction because hydrogen is being oxidized while oxygen is being reduced.
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