How many moles of nh3 can be produced from 12.0 mol of h2 and excess n2? express your answer numerically in moles. view available hint(s) nothing mol nh3m o l n h 3 part b how many grams of nh3 can be produced from 4.04 mol of n2 and excess h2. express your answer numerically in grams. view available hint(s) nothing g nh3g n h 3 part c how many grams of h2 are needed to produce 13.02 g of nh3? express your answer numerically in grams. view available hint(s) nothing g h2g h 2 part d how many molecules (not moles) of nh3 are produced from 7.62×10−4 g of h2? express your answer numerically as the number of molecules. view available hint(s) nothing moleculesm o l e c u l e s