All categories

2 years ago

how many liters of water are needed to prepare 756 g of CaCO3 for a 3.50 M solution? MM=100.1 grams/mole

Chemistry

1 answer:

Gelneren [198K]2 years ago

4 0

The volume of water needed to prepare the solution given the data is 2.16 L

<h3>What is molarity? </h3>

This is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

<h3>How to determine the mole of CaCO₃</h3>

Mass of CaCO₃ = 756 g
Molar mass of CaCO₃ = 100.1 g/mol
Mole of CaCO₃ =?

Mole = mass / molar mass

Mole of CaCO₃ = 756 / 100.1

Mole of CaCO₃ = 7.55 moles

<h3>How to determine the volume </h3>

Mole of CaCO₃ = 7.55 moles
Molarity = 3.5 M
Volume = ?

Volume = mole / molarity

Volume = 7.55 / 3.5

Volume = 2.16 L

Learn more about molarity:

brainly.com/question/15370276

#SPJ1

You might be interested in

Which best describes an element? A pure substance. A type of a mixture. A pure compound. An impure substance.

mr Goodwill [35]

a pure compound because an element is untouched and is just itself

7 0

3 years ago

Read 2 more answers

Substance in which two or more elements are combined in a fixed proportion

Firdavs [7]

Answer: compound

Explanation:

Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: Copper $Cu$

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water $H_2O$

Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present. Example: Air

8 0

3 years ago

What reactions are involved in making plastic bags and what are the molecules that make up a plastic bag like?

denpristay [2]

Plastic bags are made up of plastic film, non-woven fabric, or plastic textile. The molecules that are present in plastic bags are polymers. Polymers are large molecules made up of repeating units called monomers.
I know this isn't much, but I hope it helps! :)

8 0

3 years ago

What is the ph of the benzoic acid solution prior to adding sodium benzoate?

Reika [66]

The acid dissociation constant of benzoic acid is 6.5 x 10^-5. Therefore, the pH of the benzoic acid solution prior to adding sodium benzoate is:

pH = -log[Ka]
pH = -log (6.5 x 10^-5)
pH = 4.19

The pH of the benzoic acid solution is 4.19 which is acidic, but a weak acid.

7 0

3 years ago

What charge would Balloon #2 have? How did you determine this?

tigry1 [53]

Answer:I belive it would be attracted seeing as how there are more magmatic charges on that side of no 2 and how there are more positive charges on the middle side of ballon no1.

Explanation:

4 0

3 years ago