How many mol of $C O_{2}$ $CO_2$ are in 12.6 g of $C O_{2}$ $CO_2$ ?

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How many mol of $C O_{2}$ $CO_2$ are in 12.6 g of $C O_{2}$ $CO_2$ ?

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Answer 1 · 2016-04-20T16:35:06

$m o l s = 0.2863 \approx 0.29$ $mols=0.2863approx0.29$

Explanation:

use the formula $m o l s = \frac{m a s s}{m r}$ $mols=(mass)/(mr)$ mr is the relative atomic mass.
so mols are unknown
mr of CO2: $12 + 16 (2)$ $12+16(2)$
$44$ $44$
mass is $12.6 g$ $12.6g$
now put them in the formula given
$m o l s = \frac{12.6}{44}$ $mols=12.6/44$
$m o l s = 0.2863 \approx 0.29$ $mols=0.2863approx0.29$

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How many mol of $C O_{2}$ $CO_2$ are in 12.6 g of $C O_{2}$ $CO_2$ ?

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