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Calculations involving masses

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Question 63

The balanced chemical equation for the fermentation of glucose to produce ethanol is:

\text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 2\text{C}_2\text{H}_5\text{OH} + 2\text{CO}_2

Calculate the minimum mass of glucose ( $6H12O6_6\text{H}_{12}\text{O}_6$ ) needed to produce 36.8 g of ethanol ( $2H5OH_2\text{H}_5\text{OH}$ ).

(Relative formula masses ( $M_r$ ): $C2H5OH=46\text{C}_2\text{H}_5\text{OH} = 46$ , $C6H12O6=180\text{C}_6\text{H}_{12}\text{O}_6 = 180$ )

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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 63

The balanced chemical equation for the fermentation of glucose to produce ethanol is:

\text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 2\text{C}_2\text{H}_5\text{OH} + 2\text{CO}_2

Calculate the minimum mass of glucose ( $6H12O6_6\text{H}_{12}\text{O}_6$ ) needed to produce 36.8 g of ethanol ( $2H5OH_2\text{H}_5\text{OH}$ ).

(Relative formula masses ( $M_r$ ): $C2H5OH=46\text{C}_2\text{H}_5\text{OH} = 46$ , $C6H12O6=180\text{C}_6\text{H}_{12}\text{O}_6 = 180$ )

[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.