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Chemistry · Oct / Nov 2023 · Paper 11 · Question 9

5070The mole and the Avogadro constant

How many sodium ions are there in 30 g of sodium sulfate?

  1. A1.52 × 10²³
  2. B2.54 × 10²³
  3. C6.02 × 10²³
  4. D1.20 × 10²⁴

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Correct answer: B. 2.54 × 10²³

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