Homework Help: chem

Posted by David on Monday, February 7, 2011 at 9:28am.

Fish-liver oil is a good source of Vitamin A. When 0.1232 g of fish liver oil is dissolved in 500. mL of solvent, an absorbance of 0.724 is recorded. When 0.00167 g of Vitamin A is dissolved in 250. mL of solvent, an absorbance of 1.018 is recorded. Calculate the mass percent of Vitamin A in fish-liver oil.

I have no idea where to go with this for an equation. any assistance would be greatly appreciated.

World History - Janet, Tuesday, September 18, 2012 at 6:57pm
even greater than their use of human food, fish oil are a vital source of

a. lotion and cream
b. fertilizer
c. lamp oil
d. industrial lubricants
World History - Janet, Tuesday, September 18, 2012 at 6:58pm
The Crimean war was fought by

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