Answer to Question #290776 in General Chemistry for ray

Question

If 10 moles of sodium phophate react with an excess of calcium chloride, how many moles of sodium chloride can you expact to form?

Answer 1

• Step 1: Write an equation
• 3CaCl2 + 2Na3PO4 = Ca3(PO4)2 + 6NaCl
• Step 2: Find the mole ratio of NaCl: CaCL2 which is 6:3
• This means that for each mole of CaCl2 consumed, 2 moles of NaCl are produced.
• Therefore, if 10 moles of CaCl2 will be consumed, 20 moles of NaCl will be produced.
• Note that CaCl2 is the limiting reagent since sodium phosphate is available in excess.