Question

7.Calculate the mass/volume percent (m/v) of 14.0 g NaCl in 61.5 mL of solution.

Express your answer to three significant figures.

 

8.Calculate the molarity (MM) of 153.5 g of H2SO4 in 1.085 L of solution.

Express your answer to four significant figures.

 

9.What is the boiling point of a solution made using 827 g of sucrose, C12H22O11, in 0.200 g of water, H2O?

 

10.What is the freezing point of a solution that contains 29.5 gg of urea, CO(NH2), in 205 mL water, H2O? Assume a density of water of 1.00 g/mL.

 

11.Given the formula C1V1=C2V2, where C indicates concentration and V indicates volume, which equation represents the correct way to find the concentration of the dilute solution (C2)?

 

12.What is the final volume V2 in milliliters when 0.935 L of a 48.0 %(m/v) solution is diluted to 24.7 % (m/v)?

 

13.A 738 mL NaCl solution is diluted to a volume of 1.15 L and a concentration of 3.00 MM . What was the initial concentration C1?

Express your answer with the appropriate units