a solution contains 29.1g per litre of aluminium sulphate.calculate the number ofsulphate ions in 350cm^3 of the solution(Al=27,S=32,O=16)​

Answers

Answer 1

Answer:

it is 0.24 M

Explanation

Find the molarity of all ions in a solution that contains 0.165 moles of aluminum chloride in 820. ml solution. " Answer: [Al 3+1= 0.201 M. (CI) = 0.603M. ... 2) Find the molartiy  of each ion present after mixing 27 ml of 0.25 M HNO3 with 36 ml of ... of each ion and the mass of any precipitate when a 0.300 mole of aluminum.


Related Questions

Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?

A- increased algal blooms and damage to drinking water

B- increased plant growth and damage to drinking water

C- increase in denitrifying bacteria and increase in plant growth

D- increase in a limiting resource and increase in denitrifying bacteria

Answers

Answer:

The answer is B

Explanation:

Answer:

Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?

1. increased algal blooms and damage to drinking water

Right Answer 2. increased plant growth and damage to drinking water

3. increase in denitrifying bacteria and increase in plant growth

4. increase in a limiting resource and increase in denitrifying bacteria

Explanation:

1. Calculate the molarity of 35g of calcium chloride (CaCl2) that is dissolved in 850ml of water. (Calculate moles first)

a. 0.27M
b. 0.38M
c. 0.32M
d. 0.80M

2. Calculate the molarity of 90g of copper sulfate (CuSO4) when dissolved in 5 L of water.

a. 0.112M
b. 2.8M
c. 0.56M
d. 0.50M

3. What is the molarity of NaOH if 0.70 moles are dissolved in 250 ml of water?

a. 175,000M
b. 2.8M
c. 0.175M
d. 4M

4. How many moles of Lithium oxide (Li20) are in 2 L of solution with a molarity of 2.0M?

a. 1 mole
b. 2 moles
c. 0.2 moles
d. 4 moles

5. How many moles of NaCl are in 7.5 L of 0.5M?

a. 3.75 moles
b. 15 moles
c. 0.066 moles
d. 2.5 moles​

Answers

Answer:

yo I got same question do u know it

Answer the questions using the drop-down menus.
Which is the independent variable in this experiment?
Which is the dependent variable in this experiment?
Which is a controlled variable in this experiment?

Answers

In the experiment to measure the heat absorbed by a material placed in

the Sun, we have;

The independent variable is either the angle of insulation or the type of materialThe dependent variable is the temperature of the materialThe controlled variable is the type of material when the angle of insulation is the independent variable and vice versa

What differentiates the given experimental variables?

The possible experiment is with regards to the factors that influence energy from the Sun

The factors investigated are;

The type of material and the angle of lighting (insulation) affects the absorption of heat

The independent variable is the variable that is the cause of the effect

measured in the experiment.

It is the variable that the researcher has control over or controls and

varies during the experiment to produce the measured effect.

In the above experiment, the independent variable are either ;

The angle of insulation or the type of material respectively

The dependent variable is the variable that is under test or that is being measured.

In the above experiment the dependent variable is the temperature of the material which can be measured

The controlled variable is the variable that remains the same or is held

constant during the experiment and can be used as reference to

compare the dependent variable.

In the experiment, the controlled variable are either;

The type of material when the angle of insulation is the independent variable or vice versa

Learn more about independent and dependent variables here:

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Answer:

angle of light

temperature of material

type of material

Explanation:

E d g e 22 !

what was the role of the lung model in this scenario

Answers

Answer:

what?

Explanation:

science

It was lolled until scam

the SI unit for forces is it a newton, force, unbalanced forces, balanced forces, net forces pick on I need you help

Answers

Answer: The SI unit for force is Newtons (N).

Ideal Stoichiometry

Barium oxide has a replacement reaction with lithium. Calculate the mass of Barium oxide needed to react with 34.67 g of lithium.

*equation needed and thorough explanation please*

A- 340.5
B- 383.0
C- 455.0
D- 256.8​

Answers

Answer:

the answer is 383.0

hope it is helpful

Explain how atomic interactions determine a material to be transparent and opaque

Answers

Answer:

The materials are opaque or crystalline from a client to the orientation and type of union between their atoms, forming two types of structures.

These two structures can be crystalline or amorphous.

In the case of being crystalline, these unions do not allow light to pass through the medium of the object or body of said compound, making it totally refract and giving the appearance of OPAQUE.

On the other hand, in those compounds that we call amorphous, the atoms are located in a different way that makes light pass through them, without absorbing or identifying any light beam, so they look transparent.

Explanation:

Example: A glass cup has an amorphous structure, while a porcelain or porcelain plate has a crystalline structure.

The concentration of hydroxide ions is greater than the concentration of hydronium ions for acidic solution. True or false.

Answers

Answer: False

Explanation:

An acid is defined as the substance which looses hydrogen ion or hydronium ions when dissolved in water.

A base is defined as the substance which looses hydroxide ions when dissolved in water.

If the solution has higher hydronium ion concentration as compared to the hydroxide ion concentration, then the pH will be low and the solution will be acidic.

If the solution has low hydronium ion concentration as compared to the hydroxide ion concentration then the pH will be high and the solution will be basic.

Addition of _____________ to pure water causes the least increase in conductivity

Answers

organic molecules

because organic molecules does not dissociate in water

Whats the answer to 7/2 × 1/5?​

Answers

The answer to the problem is 7/10

Answer:7/10

Explanation:multiply top and bottom

What is an example of a polyatomic ion

Answers

Answer: The hydroxide cation (OH -) and the phosphate cation (PO 4 3-) are both polyatomic ions.

Explanation:

Answer:

OH - and PO 4 3- are both polyatomic ions

A child has a balloon in his house in the air conditioning. He goes outside with the balloon on a hot day. What happens to the temperature of the gas and volume of the balloon?

Answers

Answer:

There would be an increase in temperature and corresponding increase in the volume of the balloon

Explanation:

Charles law is been here

Charles law  states that the volume of a given mass of gas  is directly proportional to the temperature in Kelvin, provided that the pressure on the gas is kept constant. Mathematically Charles law can be represented thus;

V∝ T

Where V is the volume of the gas and;

T is the temperature.

Relating Charles Law to the question

The child moved outside from the room, constant atmospheric pressure is maintained.The temperature of the room is lower than the temperature outside.

From Charles law postulation, there would be an increase in volume because of the increased temperature, since our pressure is same.

Calculate the molar mass of ammonium chloride

Answers

Answer:

53.491 g/mol

Explanation:

Create the chemical compound and find each individual element's molar mass. Lastly, add them up.

Analysis: The limiting reactant(s) appeared to be
because

Answers

there is nothing with which it can react

Explanation:

The limiting reactant(s) prevents a reaction from continuing because there is none left.

Why do limiting reactants occur?

Identification of the limiting reactant makes it possible to calculate the theoretical yield of a reaction. The reason there is a limiting reactant is that elements and compounds react according to the mole ratio between them in a balanced chemical equation.

How do you get the limiting reactant?

The reactant that is consumed first and limits the amount of product(s) that can be obtained is the limiting reactant. To identify the limiting reactant, calculate the number of moles of each reactant present and compare this ratio to the mole ratio of the reactants in the balanced chemical equation.

Learn more about Limiting Reactant(s) here

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If a body was lying on their back when they died, and was moved to their front after 12 hours, where would one see the skin discoloration from pooling blood?

Answers

Answer:the parts of the body which is nearest to  the ground ie thier back will show discoloration

Explanation:

If the body remains at a position for long hours, the parts of the body which is nearest to  the ground can develop a skin discoloration as a result of pooling of blood in the tissues and this is called livor mortis, which tends to be permanent from 8Hours upwards.

How do stars contribute to the elements inside you?

Answers

Answer:

yes

Explanation: i took the test on this

Which of the following did Antoine Lavoisier correctly characterize as an element? light silicone dioxide mercury

Answers

Answer: mercury

Explanation: I looked up the answer to your question.

Answer:

Mercury

Explanation:

I did this question and I got it right.

How many senses does the human body have?
O A. 3
B. 5

Answers

Answer:

B

Explanation:

sight, hearing, smell, taste and touch

Answer:

Most easiest answer..

There are 5 senses in human body.☺️

What are three examples of acid-base reactions in cooking

Answers

Answer:

Lemon juice baking soda and vinegar

Explanation:

What does the questions “how much?” and “how many?” have in common?

Answers

They both ask for an amount of something

What’s the answer ?

Answers

Answer:

45.3°C

Explanation:

Step 1:

Data obtained from the question.

Initial pressure (P1) = 82KPa

Initial temperature (T1) = 26°C

Final pressure (P2) = 87.3KPa.

Final temperature (T2) =.?

Step 2:

Conversion of celsius temperature to Kelvin temperature.

This is illustrated below:

T(K) = T(°C) + 273

Initial temperature (T1) = 26°C

Initial temperature (T1) = 26°C + 273 = 299K.

Step 3:

Determination of the new temperature of the gas. This can be obtained as follow:

P1/T1 = P2/T2

82/299 = 87.3/T2

Cross multiply to express in linear form

82 x T2 = 299 x 87.3

Divide both side by 82

T2 = (299 x 87.3) /82

T2 = 318.3K

Step 4:

Conversion of 318.3K to celsius temperature. This is illustrated below:

T(°C) = T(K) – 273

T(K) = 318.3K

T(°C) = 318.3 – 273

T(°C) = 45.3°C.

Therefore, the new temperature of the gas in th tire is 45.3°C

Leon made a study chart about human-induced changes to
the environment.
Which headings best complete the chart?
Environmental Changes Caused by Humans
X: Habitat Destruction
Y: Pollution
Y
Results from
introducing harmful
substances into the
Results from natural areas
being cleared and replaced
by human development
© X: Long-Term Changes
Y: Short-Term Changes
X: Short-Term Changes
Y: Long-Term Changes
0 X: Pollution
Y: Habitat Destruction
environment
Example: deforestation
Example: oil spill​

Answers

The question was not well arranged above. It has been arranged in the answer below.

Question:

Leon made a study chart about human-induced changes to the environment.

Environmental Changes Caused by Humans

X Y

Results from introducing harmful substances into the environment

Example: oil spill

Results from natural areas being cleared and replaced by human development

Example: deforestation

Which headings best complete the chart?

X: Habitat Destruction

Y: Pollution

X: Long-Term Changes

Y: Short-Term Changes

X: Short-Term Changes

Y: Long-Term Changes

X: Pollution

Y: Habitat Destruction

Answer:

X: Pollution

Y: Habitat Destruction

Explanation:

From the above question, Leon gave us two variables, X and Y.

The human induced changes were divided into two.

1. Results from introducing harmful substances into the environment

Introducing harmful substances into the environment is also called pollution. And we can represent this as X which is the first variable.

2. Results from natural areas being cleared and replaced by human development.

This description given in number two above whereby land areas are been cleared and replaced by human development has a negative effects on the environment because the vegetation which includes the trees are been cut down and living organisms(animals) will go extinct gradually. This act affect the balance of the ecosystem and it can be referred to as the destruction of the habitat of living organisms

Therefore, the correct headings best complete the chart is :

X: Pollution

Y: Habitat Destruction

Answer:

what the top person said

Explanation:

How many atoms of carbon are present in 1.5 mole of carbon.

Answers

Answer:

there is one carbon atom and there are two oxygen atoms. So, in total there are three atoms.

Explanation:

what is the diffrence between displacement ans double displacement reactions write equations for these reactions

Answers

Answer:

Single Displacement reaction  

In a displacement reaction, a more reactive element replaces a less reactive element from a compound.

Change in colour takes place with no precipitate forms.

Metals react with the salt solution of another metal.

Examples:

2KI + Cl2 → 2KCl + I2

CuSO4 + Zn → ZnSO4 + Cu

Double displacement reaction

In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.

Precipitate is formed.

Salt solutions of two different metals react with each other.

Examples:  

Na2SO4 + BaCl2 → BaSO4 + 2NaCl

2KBr + BaCl2 → 2KCl + BaBr2

Hope this helps...Please Mark as Brainliest!!

The Sun is a constant supply of energy to Earth.
A. True
B. False

Answers

True.
The sun gives the earth thermal energy, which warmth the planet and effects the weather and the seasons. Also the sun is the beginning of the food chain, because it allows for plants to grow.
We also get our energy either directly or in directly from the sun, either from our food that we eat, or through things like the burning of fossil fuels, which was once plant-matter millions of years ago.

Explain on any two materials that you would expect to use for the wheelchair (both back support and

arm support) with less generation of heat during the hot summers.

Answers

Answer:

In the backrest use materials where it is easy to clean and where they do not absorb fluids, in this way it would be cooler, such as an ecological leather simulator.

And in the armrest as well, but in both areas we must not rule out that if or if it should have even a minimum of padded surface so that the patient or the person who spends most of the day in the wheelchair does not suffer from joint pain.

Explanation:

Some wheelchair factories also implement modern chairs where they are made of stainless steel structures lined with padded material with perforated fabrics that allow breathing and aeration of body areas that have contact with the fabric.

An organism that has 2 dominant alleles is called... *

homozygous recessive
homozygous dominant
heterozygous recessive
heterozygous dominant
HELP

Answers

Answer:

Homozygous dominant

Explanation:

what is the most significant force that attracts water molecules to each other?

Answers

Answer:

Hydrogen Bonds

hope this helps

~Savannah :))

According to the forces of attraction,   hydrogen bonds is the most  significant force that attracts water molecules to each other.

What are forces of attraction?

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

Learn more about forces of attraction,here:

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What pH does an acid have?

Answers

Answer:

The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic

Explanation:

Which of these conclusions is correct about P and Q in the diagram?

P represents the land and Q represents the ocean.
P represents the ocean and Q represents the land.
P represents the land and Q represents the atmosphere.
P represents the atmosphere and Q represents the ocean.

Answers

P represents the atmosphere and Q represents the ocean.

Answer:

P represents the atmosphere and Q represents the ocean.

Explanation:

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