Quantitative ChemistryHigh Exam FrequencyAQA

Moles & Calculations

Revise Moles & Calculations in Quantitative Chemistry for GCSE Chemistry with 22 exam-style questions and 20 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.

Sample Flashcards

Define 'one mole'
The amount of substance containing 6.02 × 10²³ particles One mole of any element weighs exactly its Ar in grams
What is Avogadro's constant?
6.02 × 10²³ particles per mole This is the number of particles in one mole of any substance.

Sample Questions

One mole of any substance contains how many particles?

  • A. 6.02 × 10²³
  • B. 6.02 × 10²⁰
  • C. 3.01 × 10²³
  • D. 6.02 × 10¹⁸
1 markfoundation

Explain why the percentage yield of a reaction is never 100% in practice.

2 marksstandard

22

exam-style questions

20

revision flashcards

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