help bro my chem teacher sucks and my entire class has no clue what we’re doing

Determine the mass in grams of each of the following:

a. 3.00 mol Al
b. 2.56 x 10^24 atoms Li
c. 1.38 mol N
d. 4.86 x 10^24 atoms Au
e. 6.50 mol Cu
f. 2.57 × 10^8 mol S
g. 1.05 x 10^17 atoms Hg