An excess of calcium chloride was added to a solution containing sodium carbonate with a mass of 21.2 g, calculate
| December 3, 2020 | education
An excess of calcium chloride was added to a solution containing sodium carbonate with a mass of 21.2 g, calculate and indicate the mass of the insoluble salt obtained as a result of the reaction
Na2CO3 + CaCl2 = CaCO3 + 2NaCl
n (Na2CO3) = m \ M = 21.2 \ 106 = 0.2 mol
by ur-th reaction n (CaCO3) = n (Na2CO3) = 0.2 mol
m (CaCO3) = nM = 0.2 * 100 = 20 g
Answer: 20 g
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