Question

17 cl 35.45 56 ba 137.33 what is the molar mass of the ionic compound bacl2? bacl2 = ? $\frac{g}{mol}$

Explanation:

Step1: Identify molar - mass of elements

The molar mass of Ba is $137.33\ \frac{g}{mol}$ and of Cl is $35.45\ \frac{g}{mol}$.

Step2: Calculate molar - mass of $BaCl_2$

The formula for $BaCl_2$ has 1 Ba and 2 Cl atoms. So, $M = 1\times137.33+2\times35.45$.
$M=137.33 + 70.9$.
$M = 208.23\ \frac{g}{mol}$.

Answer:

$208.23$