Question

0.235 g of a hydrocarbon reacts with excess oxygen in a bomb calorimeter. the molar mass of the compound is 122.118 g. how many moles of the hydrocarbon react? ? mol do not round.

Explanation:

Step1: Recall the formula for moles

The formula to calculate moles ($n$) is $n = \frac{m}{M}$, where $m$ is the mass of the substance and $M$ is the molar mass.

Step2: Substitute the given values

Here, $m = 0.235\space g$ and $M = 122.118\space g/mol$. So we substitute these values into the formula: $n=\frac{0.235}{122.118}$.

Answer:

$\frac{0.235}{122.118}$ (or approximately $0.001924$ if calculated, but as per instruction, do not round, so keep the fraction form or the unrounded decimal)