Question

Ascorbic acid (vitamin C, C6H8O6) is a water-soluble vitamin. A solution containing 80.5 g of ascorbic acid dissolved in 230 g of water has a density of 1.22 g/mL at 55∘C.

Part A

Part complete

Calculate the mass percentage of ascorbic acid in this solution.

Express the mass percentage to three significant digits.

mass percent =

25.9

%

Part B

Part complete

Calculate the mole fraction of ascorbic acid in this solution.

Express the mole fraction to three significant digits.

χ =	3.46×10−2

Part C

Calculate the molality of ascorbic acid in this solution.

Express the molality in moles per kilogram to three significant digits.

Part D

Calculate the molarity of ascorbic acid in this solution.

Express the molarity to three significant digits.

I finished parts A and B, but I don't get how to do Parts C and D. Thanks for the help.