Calcium carbonate, also known as chalk, can be produced by reacting .5 M calcium chloride solution and solid sodium carbonate.

Question

1. Besides calcium carbonate, what is the other product?
2. Write the balanced equation. 
3. What volume of calcium chloride solution will be needed to produce 10 g of chalk?
4. What mass of sodium carbonate will be needed to produce 10 g of chalk?

Show work and explain

Answer 1

1). The other product is sodium chloride (NaCl)

2). CaCl₂(aq) + Na₂CO₃(s) ==> CaCO₃(s) + 2NaCl(aq) ... balanced equation

3). 10 g CaCO₃ x 1 mol CaCO₃/100 g = 0.1 mole CaCO₃

0.1 mol CaCO₃ x 1 mol CaCl₂/mol CaCO₃ = 0.1 mol CaCl₂ needed

(x L)(0.5 mol/L) = 0.1 mol and x = 0.2 L = 200 ml CaCl₂ needed

4). 0.1 mol CaCO₃ x mol Na₂CO₃/mol CaCO₃ x 106 g Na₂CO₃/mol = 10.6 g Na₂CO₃