A solution of common salt, NaCl, in water has a concentration of 0.0921 M. Calculate the number moles of NaCl contained in 50.0 mL of this solution.

A solution of common salt, NaCl, in water has a concentration of 0.0921 M. Calculate the number moles of NaCl contained in 50.0 mL of this solution.

b. If, instead, an NaCl solution is prepared by dissolving 10.0 g of solid NaCl in enough water to make 250. mL of solution, what is the moalrity?