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Chemistry · Oct / Nov 2025 · Paper 11 · Question 10

5070The mole and the Avogadro constant

How many atoms are there in 27.0 g of water, H$_2$O?

  1. A9.030 × 10$^{23}$
  2. B1.806 × 10$^{24}$
  3. C2.709 × 10$^{24}$
  4. D3.612 × 10$^{24}$

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Correct answer: C. 2.709 × 10$^{24}$

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