3.4 Using concentrations of solutions in mol/dm3

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Question 24

A chemical supplier checks a batch of zinc chloride solution. The batch record is shown in the table.

Quantity	Recorded value
Solute	Zinc chloride, $ZnCl2\text{ZnCl}_2$
Mass of solute	5.44 g
Final volume of solution	400 cm³
Relative formula mass ( $M_r$ ) of $ZnCl2\text{ZnCl}_2$	136

Calculate the amount of zinc chloride, in $mol\text{mol}$ , recorded for this batch.

[2]

Concentration must be entered on the batch record in $mol/dm3\text{mol/dm}^3$ .

Calculate the concentration that should be entered.

[2]

Markscheme

3.4 Using concentrations of solutions in mol/dm3 Questions

GCSE
Chemistry
3.4 Using concentrations of solutions in mol/dm3

106 exam-style questions on AQA GCSE Chemistry 3.4 Using concentrations of solutions in mol/dm3, covering 3.4.1 Concentration in mol/dm3. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank·3.4 Using concentrations of solutions in mol/dm3