🤓 Based on our data, we think this question is relevant for Professor Benjamin's class at BC.
We´re asked to determine the starting mass of KOH and H3PO4 based on the produced mass of K3PO4 and an unreacted amount of H3PO4.
The problem can be solved in 4 steps:
Step 1: Calculate the Molar Mass (MM) of KOH, H3PO4, and K3PO4.
Step 2: Calculate the moles of K3PO4, since we know the produced mass.
Potassium hydroxide and phosphoric acid react to form potassium phosphate and water according to the equation.
3KOH(aq) + H3PO4(aq) → K3PO4(aq) + 3H2O(l)
Determine the starting mass of each reactant if 58.5 g of K 3PO4 is produced and 86.8 g of H3PO4 remains unreacted.
(A) What is the starting mass of KOH? (g)
(B) What is the starting mass of H 3PO4? (g)