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What is the molar mass of (NH4)2SO4?
A132 g per mol
B114 g per mol
C96 g per mol
D160 g per mol
Answer & Solution
Correct answer: A. 132 g per mol
1. NH4 has mass 14 + 4 = 18 g per mol.
2. Two NH4 = 36 g per mol.
3. SO4 = 32 + 64 = 96 g per mol.
4. Total = 36 + 96 = 132 g per mol.
5. So the molar mass is 132 g per mol.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 5 'Mole Concept and Stoichiometry'_
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