Question 1
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.
◦ 10.7 mol kg
-1◦ 9.44 mol kg
-1◦ 6.39 mol kg
-1◦ 39.0 mol kg
-1◦ 17.5 mol kg
-1Question 2
A solution is 0.0433 mol kg
-1 LiF. What is the molarity of the solution if the density is 1.10 g mL
-1?
◦ 0.0390 mol L
-1◦ 0.0476 mol L
-1◦ 0.0417 mol L
-1◦ 0.0519 mol L
-1◦ 0.0441 mol L
-1