Question

Use the balanced equation to solve the problem.Na₂CO3 + CaCl₂ → 2NaCl + CaCO328.0g of calcium carbonate, CaCO3, are made.How many moles of sodium chloride, NaCl, are made?mol

Answer 1

Step-by-step explanation:

Na₂CO3 + CaCl₂ → 2NaCl + CaCO3

To solve this question, we need to first transform 28.0 g of CaCO3 into moles using its molar mass and the following formula: n=m/MM

MM of CaCO3 = 100 g/mol

n = 28/100

n = 0.28 moles

Now we use the equation ratio:

2 moles of NaCl -- 1 mole CaCO3

x moles of NaCl -- 0.28 moles CaCO3

x = 0.56 moles

Answer: 0.56 moles of NaCl