In the following: Establish the concentration in mg P per liter of:
1.) 25.3256 g of 90% pure monobasic Ammonium phosphate dissolved in 55 gallons.
2.) 25 mL of 1.8 N phosphoric acid dissolved in 5 gallons.
3.) 2.50 mL of a 1000 mg/L phosphate standard dissolved in 500 mL.