Warm-Up 32 - Concentration Calculations

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1 question

Note from the author:

Remember the formulas for molarity, molality, and mass percent.

Instructions

Remember the formulas for molarity, molality, and mass percent.

According to our saturated NaCl lab, it was determined that the saturation point of NaCl (MM = 58g/mol) at 20oC was 34 g NaCl/100 g H2O. The volume of this solution was determined to be 112 mL. Based on this information, answer the following problems. This information is also shown in the table below.

The molarity of the solution would be _______ M. Answer in 3 sig figs.

The molality of the solution would _______ m. Answer in 3 sig figs.

The mass percent of the solution would be _______ %. Answer in 3 sig figs.