1. Calculate the MM of MgNH4PO4·6H2O.
2. Assuming 100% theoretical yield, how many grams of P2O5 can be produced from 35.0 grams of PO4
3. What is the percentage P2O5 in a name brand plantfood if the starting mass of a sample of plantfood was 200.00 grams and the experimentally determined mass of P2O5 was 30.5 grams?