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Calculations involving masses

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Question 28

The thermal decomposition of magnesium carbonate forms magnesium oxide and carbon dioxide.

\text{MgCO}_3(\text{s}) \rightarrow \text{MgO}(\text{s}) + \text{CO}_2(\text{g})

18.5 g of pure magnesium carbonate is decomposed completely. Calculate the mass of solid produced.

(Relative atomic masses: $Mg=24.0\text{Mg} = 24.0$ ; $C=12.0\text{C} = 12.0$ ; $O=16.0\text{O} = 16.0$ )

Give your answer to two significant figures.

[2]

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 28

The thermal decomposition of magnesium carbonate forms magnesium oxide and carbon dioxide.

\text{MgCO}_3(\text{s}) \rightarrow \text{MgO}(\text{s}) + \text{CO}_2(\text{g})

18.5 g of pure magnesium carbonate is decomposed completely. Calculate the mass of solid produced.

(Relative atomic masses: $Mg=24.0\text{Mg} = 24.0$ ; $C=12.0\text{C} = 12.0$ ; $O=16.0\text{O} = 16.0$ )

Give your answer to two significant figures.

[2]

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.