Answer
There are 5.87 g in 0.150 mole of $K$.
Work Step by Step
1. Determine the molar mass of this compound (K), and setup the conversion factors:
$K: 39.10g$
$ \frac{1 \space mole \space (K)}{ 39.10 \space g \space (K)}$ and $ \frac{ 39.10 \space g \space (K)}{1 \space mole \space (K)}$
2. Calculate the mass:
$ 0.150 \space mole \times \frac{ 39.10 \space g}{1 \space mole} = 5.87 \space g$
