alleryThe molar mass of CO2 is approximately:
A22 g per mol
B28 g per mol
C64 g per mol
D44 g per mol
Answer & Solution
Correct answer: D. 44 g per mol
1. Carbon has atomic mass 12; oxygen has 16.
2. CO2 = 12 + 2*16 = 44.
3. So the molar mass is 44 g per mol.
4. Hence one mole of CO2 weighs 44 g.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 5 'Mole Concept and Stoichiometry'_
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