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3.4 Using concentrations of solutions in mol/dm3

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Question 4

A student added dilute nitric acid from a burette to 30.0 cm3 of 0.0200 mol/dm3 calcium hydroxide solution. The calcium hydroxide was exactly neutralised when 24.0 cm3 of the acid had been added.

The reaction is:

Ca(OH)2+2HNO3→Ca(NO3)2+2H2O\text{Ca}(\text{OH})_2 + 2\text{HNO}_3 \rightarrow \text{Ca}(\text{NO}_3)_2 + 2\text{H}_2\text{O}Ca(OH)2​+2HNO3​→Ca(NO3​)2​+2H2​O

What is the concentration of the nitric acid?

[1]
A

0.0250 mol/dm30.0250\ \text{mol/dm}^30.0250 mol/dm3

B

0.0125 mol/dm30.0125\ \text{mol/dm}^30.0125 mol/dm3

C

0.100 mol/dm30.100\ \text{mol/dm}^30.100 mol/dm3

D

0.0500 mol/dm30.0500\ \text{mol/dm}^30.0500 mol/dm3

Markscheme

3.4 Using concentrations of solutions in mol/dm3 Questions

  1. GCSE
  2. /Chemistry
  3. /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.

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