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Calculations involving masses

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Question 87

Calculate the percentage by mass of iron in iron(III) sulfate, $Fe2(SO4)3\text{Fe}_2(\text{SO}_4)_3$ .

\text{percentage by mass of element} = \frac{\text{total relative atomic mass of element}}{\text{relative formula mass of compound}} \times 100

(Relative atomic masses: $O=16\text{O} = 16$ , $S=32\text{S} = 32$ , $Fe=56\text{Fe} = 56$ )

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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.

Calculations involving masses

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Calculations involving masses

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Question 87

Calculate the percentage by mass of iron in iron(III) sulfate, $Fe2(SO4)3\text{Fe}_2(\text{SO}_4)_3$ .

\text{percentage by mass of element} = \frac{\text{total relative atomic mass of element}}{\text{relative formula mass of compound}} \times 100

(Relative atomic masses: $O=16\text{O} = 16$ , $S=32\text{S} = 32$ , $Fe=56\text{Fe} = 56$ )

[3]

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.