# How many moles of carbon dioxide are present in 2.98 grams of this compound?

Sep 5, 2016

Approx. $0.068$ $\text{moles carbon dioxide}$
$\text{Number of moles}$ $=$ $\text{Mass"/"Molar mass}$
$=$ $\frac{2.98 \cdot g}{\left(12.011 + 2 \times 16.00 \cdot g\right) \cdot m o {l}^{-} 1}$