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प्रश्न
Calculate the molar mass of the following substance:
Ethyne, C2H2
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उत्तर
The molar mass of C2H2
= 2 × atomic mass of C + 2 × atomic mass of H
= (2 × 12 + 2 × 1) u
= (24 + 2) u
= 26 u
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