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Katarina [22]
3 years ago
12

What does the 4 mean in the formula4Na2SO3

Chemistry
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

4 means there are four molecules of Na₂SO₃.

Explanation:

Molecule:

A molecule is the smaller particle which can exist independently.

It may be monoatomic , diatomic, triatomic etc.

For example,

Hydrogen molecule consist of two atoms H₂

Nitrogen molecule = N₂

It may be combination of atoms of different elements.

HCl, H₂SO₄,Na₂SO₃

HCl = 1 mole of hydrochloric acid or one molecules of hydrochloric acid

H₂SO₄= 1 mole of sulfuric acid or one molecule of sulfuric acid

Na₂SO₃ = 1 mole of sodium sulfite or one molecule of sodium sulfite.

4Na₂SO₃ = 4 mole of sodium sulfite or four molecule of sodium sulfite.

The coefficient before the formula indicate the total number of molecules.

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What is the smallest part of an element that has all the properties of that element?
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The smallest participle of an element is called an atom
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If you try to place the compound on the pan over the flame, what could possibly happen? Explain your answer. [2 marks] anyone pl
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Suppose that, from measurements in a microscope, you determine that a certain layer of graphene covers an area of 2.60μm2. conve
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A stock solution of ammonia in water is 28 wt% NH3. The Formal Weight (FW) of NH3 is 17.03 g/mol). The solution density at room
weqwewe [10]

Answer:

[NH₃] = 14.7 mol/L

Explanation:

28 wt% is a type of concentration that indicates that 28 g of ammonia is contained in 100 g of solution.

Let's determine the amount of ammonia:

28 g . 1 mol / 17.03g = 1.64 moles of NH₃

You need to consider that, when you have density's data it is always referred to solution:

Mass of solution is 100 g, let's find out the volume

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mol/L = M → molarity a sort of concentration that indicates the moles of solute in 1L of solution

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3 years ago
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