Chemistry · May / June 2025 · Paper 12 · Question 9
5070Relative masses of atoms and molecules
Which compound has the highest relative formula mass, Mᵣ? [Aᵣ: K, 39; N, 14; O, 16; Ca, 40; C, 12; Li, 7; S, 32; Mg, 24; Cl, 35.5]
- Acalcium carbonate
- Blithium sulfate
- Cmagnesium chloride
- Dpotassium nitrate
As printed in the paper
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Correct answer: B. lithium sulfate
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