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CAIE A-Level Chemistry AS 2.4.1 Perform Calculations Questions

Practise mole calculations involving reacting masses, gas volumes, solution concentrations, limiting reagents and stoichiometric relationships.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • Perform mole calculations involving reacting masses, gas volumes, solutions, limiting reagents and stoichiometric relationships.

CAIE A-Level Chemistry AS 2.4.1 Perform Calculations Questions question 1

[Maximum number: 1]

Sample X is added to water and made up to a total volume of 200 cm3200 \mathrm{~cm}^{3}. This gives a solution of 0.100 moldm−3HCl0.100 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{HCl}.

What is X ?

A

10 cm310 \mathrm{~cm}^{3} of 1.00 moldm−3HCl1.00 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{HCl}

B

30 cm330 \mathrm{~cm}^{3} of 0.90 moldm−3HCl0.90 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{HCl}

C

50 cm350 \mathrm{~cm}^{3} of 0.40 moldm−3HCl0.40 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{HCl}

D

100 cm3100 \mathrm{~cm}^{3} of 0.30 moldm−3HCl0.30 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{HCl}

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