A solution weighing 200 g contains 10 g of calcium chloride. Determine the mass fraction of calcium chloride.

According to the conditions of this problem (The solution weighing 200 g contains 10 g of calcium chloride) It is necessary to find the Mass fraction of calcium chloride)
Solution to the given condition of the problem
m (CaCl2) = 200 * 3/100 = 6gr
w (CaCl2) = m (CaCl2) / m (solution) * 100% = 16/210 * 100 = 7.62%
m (CaCl2) = 6 + 10 = 16gr
m (solution) = 210gr
Answer: 7.62%



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