Inorganic Chemistry How many moles in 50 grams of NH4 2SO4?

First find out how many grams in 1 mole:

Nitrogen is 14.007 g/mol, Hydrogen is 1.0079 g/mol, and Chlorine is 35.453 g/mol

There are 4 Hydrogen, so 14.007 + 4*(1.0079) + 35.453 = 53.4916 g/mol

(50 g)/(53.4916 g/mol) = 0.9347 moles