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Question 75

The formula of ammonium sulfate is $(NH4)2SO4(\text{NH}_4)_2\text{SO}_4$ .

Calculate the total number of atoms that combine to form 3.30 g of ammonium sulfate.

Give your answer to 3 significant figures.

Relative atomic masses ( $A_r$ ): $H=1.0\text{H} = 1.0$ , $N=14.0\text{N} = 14.0$ , $O=16.0\text{O} = 16.0$ , $S=32.0\text{S} = 32.0$

Avogadro constant = 6.02 × 10²³ per mole

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Calculations involving masses Questions

GCSE
Chemistry
Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.

Calculations involving masses

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Calculations involving masses

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Question 75

The formula of ammonium sulfate is $(NH4)2SO4(\text{NH}_4)_2\text{SO}_4$ .

Calculate the total number of atoms that combine to form 3.30 g of ammonium sulfate.

Give your answer to 3 significant figures.

Relative atomic masses ( $A_r$ ): $H=1.0\text{H} = 1.0$ , $N=14.0\text{N} = 14.0$ , $O=16.0\text{O} = 16.0$ , $S=32.0\text{S} = 32.0$

Avogadro constant = 6.02 × 10²³ per mole

[4]

Markscheme

Calculations involving masses Questions

GCSE
Chemistry
Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.