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Question 112

A sample of a white oxide produced during the combustion of phosphorus was analysed. It was found to contain 6.2 g of phosphorus atoms chemically combined with 8.0 g of oxygen atoms.

Calculate the empirical formula of this phosphorus compound. Relative atomic masses ( $A_r$ ): $P=31\text{P} = 31$ , $O=16\text{O} = 16$ .

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 112

A sample of a white oxide produced during the combustion of phosphorus was analysed. It was found to contain 6.2 g of phosphorus atoms chemically combined with 8.0 g of oxygen atoms.

Calculate the empirical formula of this phosphorus compound. Relative atomic masses ( $A_r$ ): $P=31\text{P} = 31$ , $O=16\text{O} = 16$ .

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.