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Chemical formulae, equations and calculations

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Question 16

Silver oxide ( $Ag2O\text{Ag}_2\text{O}$ ) decomposes upon heating to produce metallic silver ( $Ag\text{Ag}$ ) and oxygen gas ( $O2\text{O}_2$ ), according to the following balanced chemical equation:

2\text{Ag}_2\text{O}\text{(s)} \rightarrow 4\text{Ag(s)} + \text{O}_2\text{(g)}

A $g11.60\text{ g}$ sample of silver oxide ( $M_r = 232.0$ ) is completely decomposed.

Calculate the mass, in grams, of metallic silver ( $A_r = 108.0$ ) formed.

[3]

Markscheme

Chemical formulae, equations and calculations Questions

IGCSE
Chemistry
Chemical formulae, equations and calculations

80 exam-style questions on Edexcel IGCSE Chemistry Chemical formulae, equations and calculations. Each one has a worked solution and a mark scheme showing where the marks go.

Chemical formulae, equations and calculations

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Chemical formulae, equations and calculations

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Question 16

2\text{Ag}_2\text{O}\text{(s)} \rightarrow 4\text{Ag(s)} + \text{O}_2\text{(g)}

A $g11.60\text{ g}$ sample of silver oxide ( $M_r = 232.0$ ) is completely decomposed.

Calculate the mass, in grams, of metallic silver ( $A_r = 108.0$ ) formed.

[3]

Markscheme

Chemical formulae, equations and calculations Questions

IGCSE
Chemistry
Chemical formulae, equations and calculations

80 exam-style questions on Edexcel IGCSE Chemistry Chemical formulae, equations and calculations. Each one has a worked solution and a mark scheme showing where the marks go.