Homework Help: chemisrty

Posted by lyan on Monday, January 16, 2012 at 4:45pm.

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

chemisrty - DrBob222, Monday, January 16, 2012 at 5:11pm
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 this Question

Related Questions

Chemistry - Please check my answers. 1. Using the equations, IO3- +5I- + 6H+ -&...
urgent i need help within an hour! - Ascorbic acid (vitamin C, C6H8O6) is a ...
chemistry - Ascorbic acid is a weak organic acid also known as vitamin C. A ...
Chem - Dissolving 3g of ascorbic acid in 50g of acetic acid lowers the freezing ...
NEED HELP WITH CHEMISTRY HW - Ascorbic acid (vitamin C) is a diprotic acid ...
CHEMISTRY - What is the [H+] in a 0.10 M solution of ascorbic acid,C6H8O6?
chemistry - A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250...
Chemistry - A solution of I2 was standardized with ascorbic acid. Using a 0.1000...
chemistry - What is th pH of a buffer solution made by dissolving 0.10 mol of ...
Chemistry - In a experiment to determine the molecular weight and the Ka for ...

For Further Reading

First Name:
School Subject:
Answer: