The chemical species in solution S2 Fe(s)+NiCl2(aq) → FeCl2(aq)+Ni(s)
Fe(s) ------> [tex]Fe^{2+}[/tex] + 2e (Oxidation)
[tex]Ni^{2+}[/tex] (aq) + 2e ------> Ni(s) (Reduction)
Galvanic Cell
Galvanic cells employ the electrical energy generated by the transport of electrons during a redox reaction to carry out practical electrical work. By separating the oxidation and reduction half-reactions and connecting them with a wire so that the electrons must pass through the wire, it is possible to gather the electron flow.
Write a balanced equation for the half-reaction that happens at the cathode of this cell = Ni (aq) + 2e ------> Ni(s)
Write a balanced equation for the half-reaction that happens at the anode of this cell = Fe(s) ------> [tex]Fe^{2+}[/tex] + 2e.
Of what substance is E1 made? = Fe
of what substance is E2 made? = Ni
What are the chemical species in solution S1? = [tex]Fe^{2+}[/tex]
What are the chemical species in solution S2? = [tex]Ni^{2+}[/tex]
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write short note about acid nomenclature
Acids
There are various definitions for an acid. The simplest description of an acid is a chemical molecule with one or more hydrogen atoms that, when dissolved in water, gives forth hydronium ions (H3O+).
Because acids are molecular, they do not assume the expanded three-dimensional structures of ionic substances like NaCl and remain single molecules in their pure form. However, when these molecules are dissolved in water, a positively charged anion and a hydronium ion are produced as a result of the chemical connection between the hydrogen atom and the remainder of the molecule breaking. An equation involving chemicals can represent this:
HCl+H2O→H3O++Cl−
In an inorganic acid's formula, the H of the acid is written first. After the acid dissolves, the anion is all that is left of the acid (apart from the H). Although a significant class of chemicals, organic acids are not covered in this article.
Acid Names
Since all acids contain hydrogen, an acid's name is determined by the anion that it is associated with. These anions come in monatomic and polyatomic forms.
Binary acid names (in aqueous form)
An acid that contains hydrogen and another element is referred to as a binary acid. The majority of binary acids have a halogen in them. The prefix hydro- is used to start an acid name, which is then followed by the base name of the anion and the suffix -ic.
Oxyacids name
An oxyacid is an acid made up of three elements: hydrogen, oxygen, and another one. Typically, the third element is a nonmetal.
a) Oxyanions with the -ite end.
The anion's root is followed by the suffix -ous to form the name of the acid. No prefix is present.
b)Oxyanions that end in -ate.
The anion's root and the suffix -ic are used to identify the acid. No prefix is present.
In conclusion
Acids are molecular substances that discharge hydrogen ions.
The two elements hydrogen and the other make up a binary acid.
Hydrogen, oxygen, and another element are all present in oxyacids.
The anion that is bound to the hydrogen provides the basis for the acid's name.
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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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Correct the volume of 2.90 L of a gas at –12 °C to the volume occupied at 25 °C. Remember to convert between °C and K.
The volume occupied at 25 °C. Remember to convert between °C and K. V2 = 3.311 L is the correct answer.
What is volume?
Volume is the measure of the amount of space occupied by an object or a substance. It is measured in three dimensions: length, width, and height. In the International System of Units (SI), it is measured in cubic meters (m3). Volume is also commonly measured in liters (L), gallons (gal), or cubic feet (ft3). Volume can also refer to the amount of a substance or object, such as the volume of a gas or the volume of a liquid.
Temperature and Volume equation
Given,
The volume at -12°C = 2.90L
Temperature, T1 = -12°C
= (-12°C + 273)
= 261K
And, Volume at 25°C = ?
(25°C + 273)K
= 298K
Now, by using this equation:-
V1/T1 = V2/T2
V2 = V1 x T2/T1
V2 = 2.90L x 298K/261K
V2 = 3.311L
Hence, The volume at 25°C will be 3.311L
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when applied research is conducted in settings outside the laboratory, which of the following can be a problem?
when applied research is conducted in settings outside the laboratory, the focus on a specific real world problem can be a problem.
The configuration and contents of laboratories are determined by the diverse needs of the specialists that work inside. A laboratory might have a particle accelerator or a vacuum chamber, whereas a metallurgy lab might have tools for casting, refining, or evaluating the strength of metals. A psychologist would utilise a room with one-way mirrors and covert cameras to examine behaviour in their lab, whereas a biologist or chemist might employ a wet laboratory. In laboratories, such as those where computer scientists typically operate, computers (and occasionally supercomputers) are sometimes utilised for either simulations or data processing. Scientists in other professions will continue to use a variety of labs. In laboratories, engineers build, assemble, and test technical objects.
The complete question is:
when applied research is conducted in settings outside the laboratory, which of the following can be a problem?
a. examines the basic laws of human behavior
b. is just as likely to occur in the laboratory as in the field
c. focuses on a specific real world problem
d. has no connection with theory
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The table compares some characteristics of two atoms.
Charged Particles
Atom Number of Neutrons Mass Number
X 4 7
Y 5 9
Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms.
Atoms X and Atom Y are in the same family.
Atom X is in a column to the right of Atom Y on the periodic table.
Atom X and Atom Y are in the same row on the periodic table.
Atoms X and Atom Y are isotopes.
The statement that is true about the elements;
Atom X and Atom Y are in the same row on the periodic table. Option C
What is the periodic table?We know that the periodic table has to do with an arrangement of the elements in an order that is systematic. As such, when we look at the periodic table, we are looking at a systematization of the elements in a way that it is quite easy for us to be able to identify the elements.
Now we know that the mass number is the sum of the atomic number which in turn is the proton number and the number of the neutrons in the atom.
We know that the atomic number is what would tell us the group to which the element has been found to belong and in this case we can see that element X is just right to element Y in the periodic table.
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The density of an unknown element in the gaseous state is 1.60 g at 300 K and 1 atm. Which of the following could be the element?
a. He
b. Ne
c. Ar
d.O2
e. Cl2
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:
Based on your answers to your group report: Rank the relative viscosity and vapor pressure of the substances: methane (CH4), pentane, and polyethylene polyethylene lowest viscosity and higes Choose ] lowest viscosity and higest vapor pressure highest viscosity and highest vapor pressure lowest viscosity and lowest vapor pressure. highest viscosity and lowest vapor pressure intermediate viscosity and intermediate vapor pressure I Choose ]methane pentane
Rank the relative viscosity and vapor pressure of the substances Paraffin, hexadecane, octane, 2,2,4-trimethylpentane,methane.
In addition to being a fuel or fuel component for diesel and tractor engines, paraffin is frequently utilized as a fuel for jet engines and rockets. These are some typical applications for paraffin: Paraffin wax, a white or colorless soft solid that is used as a lubricant, in candles, crayons, electrical insulation, and petroleum jelly, is a complex mixture of hydrocarbons that is especially obtained from distillates of wood, coal, petroleum, or shale oil. It is primarily used in coating and sealing, candles, rubber compounding, pharmaceuticals, and cosmetics. Consuming excessive amounts of paraffin might result in intestinal blockage, which can bring on symptoms including nausea, vomiting, and constipation. An individual with a dye allergy could get tongue swelling if the paraffin contains that dye.
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For the reaction of X (represented by circles) and Y (represented by squares), the rate law has been determined to be: rate=k[X][Y]^2.Which of the following will produce the fastest rate for the reaction?ABCD
Ozone decomposes to oxygen according to the equation 2O₃(g)⟶3O₂(g). Create the equation that ties the rate expressions for this reaction to the creation of oxygen and the disappearance of O₃.
Given that there are more reactants in a given volume of space, increasing the concentration of reactants improves the likelihood that they will collide in the proper direction. As a result, the reactions rate would increase if the reactants were concentrated more. more often with each other. As a result, the reaction progresses more quickly as the temperature rises. Since the molecules will have less kinetic energy, travel more slowly, and collide less frequently as a result of a lower temperature, the rate of reaction will also be reduced.
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using curved arrow notation, write lewis acid/base equations for each of the following. remember to place formal charge on the appropriate atoms. a. aici3- b. phyp: bf3 bh3
AlCl 3 is Lewis base,PH3 is Lewis base,BH3 is Lewis acid ,BF3 is Lewis acid.
The crucial step is AlCl 3 accepting a chloride ion lone-pair to generate AlCl 4 and the highly acidic, or electrophilic, carbonium ion. Lewis bases: RCl +AlCl 3 → R + + AlCl 4−, etc. [ edit] The highest occupied molecular orbital (HOMO) of an atomic or molecular species that is strongly localised is known as a Lewis base.Lewis acid borane (BH3) has three hydrogen atoms and one boron atom in its molecule. The Lewis structure of borane features a single connection connecting each hydrogen atom to boron (BH3). Only three bonds surround the boron atom, and there are no lone pairs on the atom itself. We will learn how to draw the BH3 Lewis structure in this lesson.Only six electrons orbit the boron atom, according the Lewis structure of BF3. As a result, the boron atom's octal is incomplete. Borane BF3 is therefore regarded as a Lewis acid.A highly poisonous gaseous chemical is phosphorus. Three sigma bonds and one lone pair are present around the phosphorus atom in the Lewis structure of phosphine (PH3). Hydrogen and phosphorous atoms have no charges. The trigonal pyramidal shape of PH3 is a fundamental shape.
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Is this ammonia a polar or non polar molecule
Define the following: Renwable energy and non-Renwable energy.
A resource can be classified as renewable or nonrenewable based on whether it can replace itself at the rate it is used up or whether it has a finite supply.
What exactly is renewable energy?Energy obtained from natural resources that are renewed more quickly than they are used up is referred to as renewable energy. Such sources that are constantly replenished include the sun and the wind, for instance. Non-renewable energy comes from energy sources that will ultimately exhaust themselves or cannot be regenerated, not even after countless ages. Fossil fuels, such as petroleum, natural gas, and coal, are the non-renewable energy sources that are most often used.A resource can be classified as renewable or nonrenewable based on whether it can replace itself at the rate it is used up or whether it has a finite supply. Timber, wind, and solar power are examples of renewable resources, whereas coal and natural gas are examples of non-renewable resources.To learn more about Renewable energy refer to:
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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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Identify each statement as True or False. a) The value of K_w applies to any aqueous solution, not just pure water b) Ions that appear on both sides of an equation but undergo no change in a reaction are called spectator ions. c) An aqueous solution containing an equal number of moles of NaF and HF in an aqueous solution is an example of a buffer solution. d) A solution containing a low concentration HCl is a weak acid.
Identify each statement as True or False a) True b) True c) True d) False Not just pure water, but all aqueous solutions are subject to the equilibrium constant Kw.
In pure water, the concentrations of the hydronium and hydroxide ions are identical, making the solution neutral. Based on how much they ionise in water, acids and bases are categorised as strong or weak. - Salt and water are typically produced when acids and bases react. When the amount of hydrogen ions and hydroxide ions are equilibrium in moles, neutralisation takes place. The weak acid neutralises the base when it is introduced to the mixture.
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Which of these reactions leads to a change in the hybridization of one or more carbon atoms? oxidation of an alcohol to yield a carboxylic acid neutralization of an amine using a strong mineral substitution of an aromatic ring using a halogen free radical halogenation of an alkane hydrolysis of an ester to yield an acid and an alcohol
All of these reactions can potentially lead to a change in the hybridization of one or more carbon atoms, but the extent of the change and the specific details of the reaction will depend on the specific reaction being considered.
Oxidation of an alcohol to yield a carboxylic acid: This reaction typically involves the addition of an oxygen atom to the carbon atom that was bonded to the hydroxyl group in the alcohol, as well as the removal of two hydrogen atoms. This can result in a change in the hybridization of the carbon atom, depending on the specific alcohol being oxidized and the conditions of the reaction.
Neutralization of an amine using a strong mineral acid: This reaction typically involves the addition of a proton to the nitrogen atom in the amine, as well as the removal of a hydroxyl group. This can result in a change in the hybridization of the nitrogen atom, depending on the specific amine being neutralized and the conditions of the reaction.
Substitution of an aromatic ring using a halogen: This reaction typically involves the substitution of a hydrogen atom on the aromatic ring with a halogen atom. This can result in a change in the hybridization of the carbon atom bonded to the hydrogen atom that is replaced, depending on the specific aromatic compound and the conditions of the reaction.
Halogenation of an alkane: This reaction typically involves the substitution of one or more hydrogen atoms on an alkane with a halogen atom. This can result in a change in the hybridization of the carbon atoms bonded to the hydrogen atoms that are replaced, depending on the specific alkane and the conditions of the reaction.
Hydrolysis of an ester to yield an acid and an alcohol: This reaction typically involves the addition of a hydroxyl group to the carbon atom that was bonded to the ester group, as well as the removal of the oxygen atom that was bonded to the same carbon atom. This can result in a change in the hybridization of the carbon atom, depending on the specific ester being hydrolyzed and the conditions of the reaction.
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which of the following is not a network solid? selected answer: correctc. co2(s) correct answer: correctc. co2(s)
We were aware that SiO2 is a network covalent solid and that CO2 is a molecular solid, but I'm not sure how I would go about determining that.
Each silicon and carbon have the same number of valence electrons, and they both contain two oxygen atoms. Because solid sulfur dioxide is a molecule and has covalent bonds, it is not a network solid even if it is a solid and has covalent bonds. An example of a network solid is diamond. One of the many forms of elemental carbon found in nature, diamond is an allotrope of carbon. On an atomic level, it resembles this. The carbon atoms are linked together by the lines.
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Which of the following compounds are the same?
Compound 1 is composed of 67 g of H and 33 g of F.
Compound 2 is composed of 29 g of Na and 71 g of Br.
Compound 3 is composed of 39 g of Na and 61 g of Br.
Compound 4 is composed of 33 g of F and 67 g of H.
A. Compounds 1 and 4
B. Compounds 2 and 3
C. Compounds 1 and 2
D. Compounds 2 and 4
The option among the given compounds that are the same compound is: Compounds 2 and 3
Th correct option is B.
What are compounds?Compounds are substances that are composed of two or more elements chemically combined together.
Compounds can be formed by the combination of two non-metals or a metal and a non-metal.
Compounds formed from the combination of two non-metals are covalent compounds.
Compounds formed from the combination of a metal and a non-metal are called ionic compounds since they form oppositely-charged ions.
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Radioisotopic dating estimates the age of objects based on the fact that the half-life of any radioactive isotope is _____.a fixed value
The time it takes for one-half of the radioactive parent isotope to decay into the daughter isotope is known as the half-life.
As a result, if we begin with 1 gram of the parent isotope, there will only be 0.5 gram of the parent isotope left after 1 half-life. The fundamental idea behind radiometric dating is that by comparing an isotope's presence in a sample to its abundance on Earth and its known half-life (rate of decay), you may determine the sample's age. A radiometric dating technique is radiocarbon dating, often known as carbon-14 dating. It determines the age of carbon-bearing by using the naturally occurring radioisotope carbon-14 (14C).
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Consider the following reaction at 276 K.
1 A + 2 B → C + D
where rate = rate=k[A][B]2. An experiment was performed for a certain number of seconds where [A]o = 0.000847 M and [B]o = 1.11 M. A plot of ln[A] vs time had a slope of -9.43. What will the rate of this reaction be if a new experiment is preformed when [A] = [B] = 0.779 M?
1 A + two C and d → C + S t where rate=k[A][B][rate] 2. An experiment with [A]o = 0.000847 T s as well as [B]o = 1.11 M was run for a predefined number of seconds. The slope of a ln[A] vs. grown steadily was -9.43. rate of reaction is 3.62m/s
Slope and slant both refer to an incline up from a reference surface or line that is generally straight. The ground slopes (either upward or straight down) sharply here. To slope is to slope vertically in an ambiguous path A line's steepness could be determined by looking at its slope. Altitude is calculated mathematically as "rise over run."
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I need help please!!
A. The units remaining after the conversion is mi
B. The units remaining after the conversion is atoms
A. How do I determine the units remaining?
From the question given above, the following expression was obtained:
in × ft/in × mi/ ftTo know the unit that will remain, we shall simplify the expression. Details below:
in × (ft/in) × (mi/ ft)
Cancel out in
ft × (mi/ ft)
Cancel out ft
mi
Thus, the unit remaining is mi
B. How do I determine the units remaining?
From the question given above, the following expression was obtained:
g × mol/g × atoms/ molTo know the unit that will remain, we shall simplify the expression. Details below:
g × (mol/g) × (atoms/ mol)
Cancel out g
mol × (atoms/ mol)
Cancel out mol
atoms
Thus, the unit remaining is atoms
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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:
2Na3N + 3Ca(OH)2 →Ca3N2 + 6NaOH
If you have 448.2 g of calcium hydroxide how many grams of sodium hydroxide can be
formed?
Answer:
3Ca(OH)2 = 3(40+2(16+1))
= 222
448.2 ÷ 222 = 2.02mol
6NaOH = 6(23+16+1)
= 240
240 × 2.02mol = 484.5 g
Which of the following is an example of an endothermic process?
Select the correct answer below:
a. melting ice cubes
b. burning sugar
c. a candle burning
d. condensation of rain from water vapor
An endothermic process from the list would be the melting of ice cubes. Option A.
What are endothermic processes?Endothermic processes are processes that absorb energy from the surrounding. Chemically, endothermic reactions are reactions in which the products are at higher energy level than the reactants.
Endothermic processes are different from exothermic processes. Exothermic processes are processes that gives off energy to the surrounding instead of taking from it.
In order for ice cubes to melt, they need to absorb energy from external sources. In order words, the melting of ice cubes is analogous to an endothermic process.
Burning of sugar and candle give off heat energy to the surrounding. When water vapor condenses, they also give off energy in order to change state from gas (vapor) to liquid. In other words, the burning of sugar and candle, as well as the condensation of rain from water vapor are all exothermic processes.
The only process that is endothermic is the melting of ice cubes.
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a chemistry graduate student is given of a chloroacetic acid solution. chloroacetic acid is a weak acid with . what mass of should the student dissolve in the solution to turn it into a buffer with ph ? you may assume that the volume of the solution doesn't change when the is dissolved in it. be sure your answer has a unit symbol, and round it to significant digits.
Choloracetic acid, 12 g. The colorless solution of the white crystalline substance known as chloroacetic acid.
Up to 80% of the solution can be acidic. By inhalation, ingestion, and skin contact, it is poisonous. It corrodes flesh and metals.
The equilibrium of the buffer is
CH2ClCO2 + H+ HCH2ClCO2
PKA = Log Ka
Ka: [CH2ClCO2] = 1,3 x 103. "H+" / "HCH2ClCO2"
Using the Henderson-Hasselbalch formula:
pH equals pka plus log10 [A]/[HA].
2,89 + log10 [A] / [HA] = 3,01
1,318 = [A⁻] / [HA]
Since chloroacetic acid (HA) has a molar concentration of 0,20M
[A⁻] = 0,26 mol/L
There are 500 mL plus 0.5 L.
Chloroacetic acid is equal to 0,26 mol/L x 0,5 l, or 0,13 moles. By weight:
Choloracetic acid is equal to 0,13 mol (94,5g / 1mol) = 12 g.
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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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A fresh sample 1311 was left out on the benchtop for 40 days. The scientist forgot it has a half-life of 8 days. The original sample mass
was 64 g. How much of the parent isotope is left?
g
Answer:
2 g of the parent isotope is left.
Explanation:
The half-life of a radioactive isotope is the amount of time it takes for half of the isotope to decay. In this case, the half-life of the isotope is 8 days, which means that after 8 days, half of the isotope will have decayed.
To determine how much of the parent isotope is left after 40 days, we need to calculate how many half-lives have passed in that time. Since the half-life is 8 days, and 40 days have passed, we can divide 40 by 8 to find the number of half-lives that have occurred: 40 / 8 = 5
Since 5 half-lives have passed, we can calculate the amount of the parent isotope that is left by multiplying the original amount of the isotope by 1/2 to the power of the number of half-lives that have passed: 64 * (1/2)^5 = 64 * (1/32) = 2 g
Therefore, after 40 days, only 2 g of the parent isotope is left.
An organism with the genotype of AaXx can produce gametes containing _________ if the two genes are unlinked.
a. either Aa or Xx
b. either AX, Ax, aX, ax
c. AaXx
d. AX or ax
e. None of the above.
An organism with the genotype of AaXx can produce gametes containing either AX, Ax, aX, ax if the two genes are unlinked .
An organism's genotype is the complete set of its genetic material. [1] Genotype can also be used to refer to the alleles or variants that an individual has at a particular gene or locus. The number of alleles an individual can have for a particular gene depends on the number of copies of each chromosome (also called polyploidy) found in that species. Diploid species like humans have two complete sets of chromosomes. This means that each individual has her two alleles for a particular gene. If both alleles are the same, the genotype is said to be homozygous. If the alleles are different, the genotype is called heterozygous.
Genotypes contribute to the phenotype, observable traits and characteristics of an individual or organism. The extent to which genotype influences phenotype depends on the trait.
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Epinephrine is a hormone secreted into the bloodstream in times of danger and stress. It is 59% Carbon, 7.1% Hydrogen, 26.2% Oxygen and 7.7% Nitrogen by mass. Determine the empirical formula. The molar mass is 148 g/mol.
Based o the percentage masses of the elements, the empirical formula of epinephrine is C₉H₁₃O₃N.
What is the empirical formula of epinephrine?The empirical formula of epinephrine is calculated below as follow:
Mole ratio of the elements are determined:
Carbon = 59% / 12
Carbon = 0.049 moles
Hydrogen = 7.1% / 1
Hydrogen = 0.07 moles
Oxygen = 26.2% / 16
Oxygen = 0.016
Nitrogen = 7.7% / 14
Nitrogen = 0.0055
The simplest whole-number ratio will be:
C = 0.049/0.0055
C = 9
Hydrogen = 0.07/0.0055
H = 13
Oxygen = 0.016/0.0055
Oxygen = 3
Nitrogen = 0.0055/0.0055
Nitrogen = 1
The empirical formula = C₉H₁₃O₃N
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Find the volume, in mL, of an object whose density is 400 g/mL and has a mass of 600
mg.
The volume of the object is 1.5ml.
What is the volume of an object?This refers to the space occupied within the boundaries of an object in three-dimensional space. It is also called the capacity of the object.
In the question:
ρ = 400 g/mL
m = 600 mg
v = ?
Formular for calculating density ρ:
ρ = m/v
Where,
ρ= Density of the object
m= Mass of the object
v = volume of the object
Were are given the values of density and mass in the question. We are to calculate the volume.
Makinig v subject of the formular we have:
v = m/ρ
v = 600 mg
400 g/mL
v = 1.5ml
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study this chemical reaction: ca(s) zncl2(aq)zn(s)cacl2(aq) then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction
This chemical reaction: ca(s) zncl2(aq)zn(s)cacl2(aq) then, balanced half-reactions describing the oxidation and reduction that happen in this reaction is Ca (s) + ZnCl2 (aq) ---> Zn (s) + CaCl2 (aq).
When the substrate's oxidation states change, a chemical reaction known as redox (reduction-oxidation) takes place. Reduction occurs when electrons are obtained or the oxidation state drops; oxidation occurs when electrons are lost or the oxidation state increases. There are two types of redox reactions: During an electron transfer, only one electron (usually) travels from the reducing agent to the oxidant. This type of redox reaction is frequently discussed in terms of redox couples and electrode potentials. When one substrate gives way to another, an atom transfers. When iron rusts, for example, oxygen's oxidation state decreases as it receives electrons released by the iron, while the oxidation state of the iron atoms increases as the iron transforms into an oxide. Despite the fact that oxidation processes are typically related to the generation of oxides, other chemical species can carry out the same function. To weaken C=C (and other) bonds, hydrogen atoms are exchanged during hydrogenation.
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