Commercial Grade HCl Solutions Are Typically 39

Multiple Choice

Commercial grade HCl solutions are typically 39.0% (by mass) HCl in water. Determine the molality of the HCl if the solution has a density of 1.20 g mL^-1.

A) 39.0 mol kg^-1
B) 17.5 mol kg^-1
C) 6.39 mol kg^-1
D) 10.7 mol kg^-1
E) 9.44 mol kg^-1