Skip to content

Course home

Question bank·3.2 Use of amount of substance in relation to masses of pure substances
Sign up

3.2 Use of amount of substance in relation to masses of pure substances

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576
Question 32

A sample of nitrogen dioxide gas, NO2\text{NO}_2NO2​, contains 3.01 × 1023 oxygen atoms.

Take the Avogadro constant as 6.02 × 1023 per mole.

How many moles of nitrogen dioxide are in the sample?

[1]
A

0.50 mol0.50\ \text{mol}0.50 mol

B

1.00 mol1.00\ \text{mol}1.00 mol

C

0.25 mol0.25\ \text{mol}0.25 mol

D

0.17 mol0.17\ \text{mol}0.17 mol

Markscheme

3.2 Use of amount of substance in relation to masses of pure substances Questions

  1. GCSE
  2. /Chemistry
  3. /3.2 Use of amount of substance in relation to masses of pure substances

131 exam-style questions on AQA GCSE Chemistry 3.2 Use of amount of substance in relation to masses of pure substances, covering 3.2.1 Moles, 3.2.2 Amounts of substances in equations, 3.2.3 Using moles to balance equations, 3.2.4 Limiting reactants, 3.2.5a Concentration of solutions, and 3.2.5b Relating mass, volume and concentration. Each one has a worked solution and a mark scheme showing where the marks go.

More questions