Question

Q1) A solution of ascorbic acid (C6H8O6, Formula mass = 176 g/mol) is made up by dissolving 80.5 g of ascorbic acid in 210 g of water, and has a density of 1.22 g/mL at 55 oC. Calculate the following:

a) the mass percentage of ascorbic acid
b) the mole fraction of ascorbic acid
c) the molality of the solution
d) the molarity of ascorbic acid in this solution

Answer 1

You do most of this the same way I worked the first problem for you. Just remember the de4finitions.
mass% = (mass X/total mass)*100 = ?
X = (moles X/total moles)
molality = m = moles X/kg solvent.
M = molarity = moles/L soln.

Answer 2

ewfg