3.5 Use of amount of substance in relation to volumes of gases

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Question 10

When ethane, $C2H6\text{C}_2\text{H}_6$ , is burned with plenty of oxygen, this reaction takes place.

$2C2H6+7O2→4CO2+6H2O2\text{C}_2\text{H}_6 + 7\text{O}_2 \rightarrow 4\text{CO}_2 + 6\text{H}_2\text{O}$

A sample of ethane burned completely and used up 105 cm³ of oxygen. Every gas volume was measured at the same temperature and pressure.

Calculate the starting volume of ethane in the sample.

[2]

Calculate how much carbon dioxide, in $cm3\text{cm}^3$ , the combustion makes.

[1]

Markscheme

3.5 Use of amount of substance in relation to volumes of gases Questions

GCSE
Chemistry
3.5 Use of amount of substance in relation to volumes of gases

100 exam-style questions on AQA GCSE Chemistry 3.5 Use of amount of substance in relation to volumes of gases, covering 3.5.1 Volumes of gases. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank·3.5 Use of amount of substance in relation to volumes of gases