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Acids, alkalis and titrations

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Question 19

An analytical chemist performs a titration to determine the volume of nitric acid required to completely neutralise a sample of calcium hydroxide solution.

The chemist begins with 30.0 cm330.0\text{ cm}^330.0 cm3 of calcium hydroxide solution with a concentration of 0.0800 mol/dm30.0800\text{ mol/dm}^30.0800 mol/dm3.

Nitric acid with a concentration of 0.150 mol/dm30.150\text{ mol/dm}^30.150 mol/dm3 is added from a burette until the neutralisation endpoint is reached.

The equation for this reaction is:

Ca(OH)2+2HNO3→Ca(NO)3)2+2H2O \text{Ca(OH)}_2 + 2\text{HNO}_3 \rightarrow \text{Ca(NO)}_3)_2 + 2\text{H}_2\text{O} Ca(OH)2​+2HNO3​→Ca(NO)3​)2​+2H2​O
a.

Calculate the amount, in moles, of calcium hydroxide used.

[2]
b.

Calculate the amount, in moles, of nitric acid needed to neutralise this amount of calcium hydroxide.

[2]
c.

Calculate the volume, in cm3cm^3cm3, of nitric acid needed to neutralise this solution of calcium hydroxide.

[2]

Acids, alkalis and titrations Questions

  1. IGCSE
  2. /Chemistry
  3. /Acids, alkalis and titrations