Hello!
To convert 0.6280 mol As to grams As, we would need to multiply it by the mass of one mole of As, which is about 74.92 grams.
In order to get rid of the unit "mol", we would need to multiply the given mole using a conversion factor.
To set it up, it would look like: 0.6280 mol As × 74.92 grams As/1 mol As
The conversion factor in this expression is 74.92 grams As/1 mol As, and that cancels out mol As because we are converting moles to grams.
0.6280 mol As x 74.92 grams As/1 mol As (cancel out the units of measure)
0.6280 x 74.92 grams As ≈ 47.05 grams As
Therefore, your answer is about 47.05 grams As.
