Question

how many moles are in 500. g mgbr₂? molar mass mgbr₂ = 184.11 g/mol

Explanation:

Step1: Use the formula for moles

The formula for calculating moles ($n$) is $n=\frac{m}{M}$, where $m$ is the mass and $M$ is the molar mass.

Step2: Substitute the given values

Given $m = 500.0\ g$ and $M=184.11\ g/mol$.
So, $n=\frac{500.0\ g}{184.11\ g/mol}$.

Step3: Calculate the value

$n=\frac{500.0}{184.11}\approx 2.716\ mol$.

Answer:

$2.72\ mol$ (rounded to three significant figures)