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Calculations involving masses

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Question 5

The balanced chemical equation for the reaction of sodium metal with water is:

2\text{Na} + 2\text{H}_2\text{O} \rightarrow 2\text{NaOH} + \text{H}_2

In an investigation into Group 1 reactivity, 0.05 mol of water was added to a flask containing 0.345 g of sodium metal.

Calculate the number of moles of sodium, $Na\text{Na}$ , in this 0.345 g sample.

(relative atomic mass: $Na=23\text{Na} = 23$ )

[1]

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 5

The balanced chemical equation for the reaction of sodium metal with water is:

2\text{Na} + 2\text{H}_2\text{O} \rightarrow 2\text{NaOH} + \text{H}_2

In an investigation into Group 1 reactivity, 0.05 mol of water was added to a flask containing 0.345 g of sodium metal.

Calculate the number of moles of sodium, $Na\text{Na}$ , in this 0.345 g sample.

(relative atomic mass: $Na=23\text{Na} = 23$ )

[1]

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.