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Empirical Formula

Calculate %...

Question

Calculate $%$ composition of underlined atom.
$C H_{3} O - - H =$ _________ $%$ .

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Solution

Molecular mass of methanol $= 1 \times 12.01 + 4 \times 1.008 + 1 \times 16.0$
$= 32.042$ gm
Percent composition of Oxygen = $\frac{16 \times 100}{32.042} = 49.93 %$

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