Sodium phosphate, (Na3PO4) combines with calcium chloride to yield calcium phosphate and sodium chloride. If 2.4 grams of sodium phosphate is used, how many grams of chloride is produced?

Question

What type of reaction is represented?

Answer 1

Write the balanced equation:

2Na₃PO₄(aq) + 3CaCl₂(aq) ==> Ca₃(PO₄)₂(s) + 6NaCl(aq)

Using the stoichiometry of the balanced equation, and dimensional analysis, we can find mass of NaCl...

2.4 g Na₃PO₄ x 1 mol Na₃PO₄/164 g x 6 mol NaCl/2 mol Na₃PO₄ x 58.4 g NaCl/mol = 2.6 g NaCl

The type of reaction represented is a double replacement reaction.