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3.4 Using concentrations of solutions in mol/dm3

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Question 3
H

A student prepares a solution of sodium hydroxide, NaOH\text{NaOH}NaOH.

Relative formula mass (MrM_rMr​): NaOH=40\text{NaOH} = 40NaOH=40

a.

The student dissolves 2.00 g of sodium hydroxide in water to make 250 cm3 of solution.

Calculate the amount, in mol\text{mol}mol, of sodium hydroxide the student used.

[2]
b.

Calculate the concentration of the solution in mol/dm3\text{mol/dm}^3mol/dm3.

[2]
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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