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Calculations involving masses

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Question 51

An aerosol canister contains 0.055 g of carbon dioxide ( $CO_2$ ) gas used as a propellant.

Calculate the number of molecules of carbon dioxide present in this canister. Give your answer to two significant figures.

Relative formula mass ( $M_r$ ): $CO2=44\text{CO}_2 = 44$

Avogadro constant = $6.02 \times 10^{23}\text{ per mole}$

[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 51

An aerosol canister contains 0.055 g of carbon dioxide ( $CO_2$ ) gas used as a propellant.

Calculate the number of molecules of carbon dioxide present in this canister. Give your answer to two significant figures.

Relative formula mass ( $M_r$ ): $CO2=44\text{CO}_2 = 44$

Avogadro constant = $6.02 \times 10^{23}\text{ per mole}$

[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.