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Percentages

Calculate the...

Question

Calculate the mass percent of carbon in one mole of $C H C l_{3}$ .

A

10

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B

15

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C

18

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D

20

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Solution

The correct option is C 10
Total mass of $C H C l_{3}$ is $= 12.011 + 1.008 + (3 \times 35.453) = 118.376$ .
Hence mass percent of Carbon is
$= \frac{12.011}{118.376} = 0.101$ . Hence about $10.1$ %.

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