Calculate the molar mass of Ethyne ( $C_{2} H_{2}$ ).

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Solution

Molar mass of $C_{2} H_{2}$

$= 2 \times (molar mass of C) + 2 \times (molar mass of H)$
$= 2 \times (12 g) + 2 \times (1 g)$
$= 24 g + 2 g$
$= 26 g$

The molar mass of ethyne is 26 g.

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