# How many moles are there in 168 grams of C_2H_4?

Aug 8, 2016

Approx. $6$ $\text{moles}$.

#### Explanation:

$\text{Molar quantity"="Mass"/"Molar mass}$

$\text{Moles of ethane } = \frac{168 \cdot \cancel{g}}{28.05 \cdot \cancel{g} \cdot m o {l}^{-} 1}$ $=$ ??*mol.

How many moles of carbon in this quantity of ethane; how many moles of hydrogen?