Answer to Question #122982 in Chemistry for Dahat

Question

1. What is the mass percent (m/m) of KCl solution made by dissolving 5.0 g of KCl in 65 g of H2O?
2. What is the volume percent (v/v) of Br2 in a solution prepared by dissolving 10 mL of bromine (Br2) in the solvent carbon tetrachloride to make 0.2 L of solution?
3. What is the mass/volume percent (m/v) of KOH in a solution prepared by dissolving 0.02 Kg of KOH in enough water to make 250 mL of solution?
4. Calculate the mass percent (m/m) for 12 g of sugar in 0.225 Kg of tea solution with sugar?
2

5. A saline solution with a mass of 355 g has 0.0365 Kg of NaCl dissolved in it. What is the mass/mass percent concentration of the solution?
6. What is the amount (in g) of hydrogen peroxide (H2O2) needed to make a 3.0 kg , 2.0 % (mass/mass) H2O2 solution?

Answer 1

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