Question

Calculate the number of moles in 3.00 g of Au

Answer 1

To find the number of moles in 3.00g of Au, divide the given mass by the molar mass of the Au (gold):

$3.00g\cdot\frac{mol}{196.96g}=0.015mol$

There are 0.015 moles in 3.00 g of Au.