Essential Chemistry for IGCSE - Chemical Calculations (Section 7 - No. 24)
The relative atomic mass of oxygen is 16. What is the mass of 0.5 moles of oxygen atoms?
4 g
8 g
16 g
32 g
Explanation
Molar mass of oxygen is 16 g/mol. Therefore, 0.5 moles of oxygen atoms will have a mass of 8g (0.5 mol * 16 g/mol).
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