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Calculations involving masses

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Question 15

Aluminium oxide has the chemical formula $Al2O3\text{Al}_2\text{O}_3$ .

Calculate the mass of aluminium in 285 g of aluminium oxide. Give your answer to three significant figures.

(Relative atomic masses: $O=16.0\text{O} = 16.0$ , $Al=27.0\text{Al} = 27.0$ ; Relative formula mass: $Al2O3=102.0\text{Al}_2\text{O}_3 = 102.0$ )

You must show your working.

[3]

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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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Question 15

Aluminium oxide has the chemical formula $Al2O3\text{Al}_2\text{O}_3$ .

Calculate the mass of aluminium in 285 g of aluminium oxide. Give your answer to three significant figures.

(Relative atomic masses: $O=16.0\text{O} = 16.0$ , $Al=27.0\text{Al} = 27.0$ ; Relative formula mass: $Al2O3=102.0\text{Al}_2\text{O}_3 = 102.0$ )

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.