1 kg of a solution of calcium carbonate contains 1 g of calcium carbonate. The concentration of the solution will be:
1 ppm
10 ppm
100 ppm
1000 ppm
A mixture of CaCl^2 and NaCl weighing 4.44g is treated with sodium carbonate solution to precipitate all the calcium ions as calcium carbonate . The calcium carbonate so obtainable is heated strongly to get 0.56g of CaO . The percentage of NaCl in mixture is