Question

Lithium reacts with lead (ll) phosphate in a single replacement reaction. How many grams of lithium phosphate are produced from 4.22 mol of lithium?

Answer 1

163.2 g of Li₃PO₄ are made in the reaction

Step-by-step explanation:

In first place we determine the reaction, to see stoichiometry.

The reactants are Li and Pb₃(PO₄)₂; the products are Li₃PO₄ and Pb

Equation: 6Li + Pb₃(PO₄)₂ → 2Li₃PO₄ + 3Pb

6 moles of Li can produce 2 moles of lithium phosphate

Therefore, 4.22 moles of Li will produce (4.22 . 2) / 6 = 1.41 moles of Li₃PO₄

Let's convert the amount to mass, to find the answer:

1.41 mol . 115.79 g / 1mol = 163.2 g