alleryStart learning →Molecular mass of H2SO4 (H=1, S=32, O=16) is
A98 u
B82 u
C100 u
D96 u
Answer & Solution
Correct answer: A. 98 u
1. H2SO4 has 2 H, 1 S and 4 O.
2. Mass = 2(1) + 1(32) + 4(16) = 2 + 32 + 64.
3. Sum = 98 atomic mass units.
4. So the molecular mass is 98 u.
_Source: Selina Concise Chemistry Class 9, Ch 4 The Language of Chemistry (Mistral OCR'd PDF), section on molecular mass_
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