The weight of a molecule of the compound C60H122 is
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a
1.4×10−21g
b
1.09×10−21g
c
5.025×1023g
d
16.023×1023g
answer is A.
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Detailed Solution
Molecular weight of C60H122=12×60+122×1 = 720 + 122 = 842 ∵ 6×1023 molecule C60H122 has mass = 842gm∴ 1 molecule C60H122 has mass 8426×1023=140.333×10−23gm=1.4×10−21gm.