- (B) The molar mass of C 12 H 22 O 11 is 12 C = 144, 22 H = 22, and 11 O =
176, which added together equals 342 g/mol. Because 684 g is given, then
684 g divided by 342 g/mol = 2 mol of sucrose. If this is dissolved in 2,000 g
of water, it gives 1 mol/1,000 g of water or a 1 molal solution.