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3.4 Using concentrations of solutions in mol/dm3

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Question 5
H

In a titration, 25.0 cm3 of 0.100 mol/dm3 sodium hydroxide solution was exactly neutralised by 20.0 cm3 of sulfuric acid. The equation is 2NaOH+H2SO4→Na2SO4+2H2O2\text{NaOH} + \text{H}_2\text{SO}_4 \rightarrow \text{Na}_2\text{SO}_4 + 2\text{H}_2\text{O}2NaOH+H2​SO4​→Na2​SO4​+2H2​O. What is the concentration of the sulfuric acid?

[1]
A

0.0313 mol/dm30.0313\ \text{mol/dm}^30.0313 mol/dm3

B

0.0625 mol/dm30.0625\ \text{mol/dm}^30.0625 mol/dm3

C

0.125 mol/dm30.125\ \text{mol/dm}^30.125 mol/dm3

D

0.250 mol/dm30.250\ \text{mol/dm}^30.250 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

40 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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