Skip to content

Course home

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

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

Easy Medium Hard

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 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

Question 2

A laboratory has 63.5 g of iodine, $I2\text{I}_2$ . The iodine is divided equally between five sealed ampoules.

The relative formula mass ( $M_r$ ) of iodine is 254.

The Avogadro constant is 6.02 × 10²³ per mole.

Calculate the number of iodine molecules in each ampoule.

[3]

Markscheme

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

GCSE
Chemistry
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