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Which of the following expressions represents the number average molar mass?

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By Expert Faculty of Sri Chaitanya
a
M=NiMi2Ni
b
M=ΣNiMi2ΣNiMi
c
M=NiMiNi
d
M=NiMiMi
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detailed solution

Correct option is C

Number average molar mass is defined as M=ΣiNiMi/ΣiNi


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