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CAIE IGCSE Chemistry 3.3.2 Mole Mol Is the Unit of Amount of Questions

Define the mole as the amount of substance containing Avogadro constant particles.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • define the mole as an amount containing Avogadro constant particles
  • identify Avogadro constant as 6.02 × 10^23
  • compare particle counts in equal amounts of substances
  • recognise the mole as a fixed amount of substance

CAIE IGCSE Chemistry 3.3.2 Mole Mol Is the Unit of Amount of Questions question 1

[Maximum number: 1]

Benzene is a liquid with molecular formula C6H6\mathrm{C}_{6} \mathrm{H}_{6}.
Ethene is a gas with molecular formula C2H4\mathrm{C}_{2} \mathrm{H}_{4}.
Which statement is correct?

A

1 mole of benzene and 1 mole of ethene contain the same number of atoms.

B

1 mole of benzene and 1 mole of ethene both have a volume of 24dm324 \mathrm{dm}^{3} at room temperature and pressure.

C

Both benzene and ethene have the same empirical formula.

D

The number of carbon atoms in 0.5 moles of ethene is equal to the Avogadro constant.

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