# How many moles are in 54.6 grams rubidium sulfide?

Jan 16, 2016

0.269 mol

#### Explanation:

To get the corresponding number of moles from the given grams of the compound, simply divide the moles by its molecular mass.

In this example,

$m o l R {b}_{2} S = 54.6 g R {b}_{2} S \cdot \left(\frac{1 m o l}{203.00 g R {b}_{2} S}\right)$
$m o l R {b}_{2} S = 0.269$