How many grams are there in 5 moles of Ammonia?
For this, we need the molar mass of ammonia, NH3, 17.03 g/mol
Now, we already have 5 moles of NH3, so the procedure will be:
5 moles NH3 x 17.03 g/mol = 85.15 g of NH3
Answer: The mass of 5 moles of NH3 = 85.15 g