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Calculations involving masses

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Question 33

In a metallurgical analysis of a Martian meteorite sample, a scientist isolates a pure oxide of iron.

A 4.80 g sample of this oxide is found to contain 3.36 g of iron, with the remainder of the mass being oxygen.

Calculate the empirical formula of this iron oxide. (Relative atomic masses, $ArA_{\text{r}}$ : $Fe=56\text{Fe} = 56$ , $O=16\text{O} = 16$ )

You must show your working.

[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.

Calculations involving masses

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Calculations involving masses

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Question 33

In a metallurgical analysis of a Martian meteorite sample, a scientist isolates a pure oxide of iron.

A 4.80 g sample of this oxide is found to contain 3.36 g of iron, with the remainder of the mass being oxygen.

Calculate the empirical formula of this iron oxide. (Relative atomic masses, $ArA_{\text{r}}$ : $Fe=56\text{Fe} = 56$ , $O=16\text{O} = 16$ )

You must show your working.

[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.