Question

the molar mass of acetic acid is 60.052 g/mol. how many moles of acetic acid are contained in 1.004 g of acetic acid?
59.81
0.01672
60.29
its impossible to tell

Explanation:

Step1: Recall mole - mass formula

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

Step2: Substitute given values

We have $m = 1.004\ g$ and $M=60.052\ g/mol$. So $n=\frac{1.004}{60.052}$.

Step3: Calculate the result

$n=\frac{1.004}{60.052}\approx0.01672\ mol$

Answer:

B. 0.01672