Homework Help: Chemistry

Posted by on Friday, January 21, 2011 at 5:51pm.

An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved
the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL
of the solution was pipetted into a 100 mL volumetric flask and diluted to the mark with FeCl3 solution.
The concentration of the diluted solution is

Chemistry - DrBob222, Friday, January 21, 2011 at 8:17pm
What kind of concn? M, m, %, g/mL, what? If M, then
g ASA in the tablet = 0.475 g x 0.682 = ??g ASA
??g/180.16 = xx moles ASA
M = xx moles/0.250L = yy M
Then yyM x (3/100) = zz M as the final answer.

Answer this Question

Related Questions

chemistry - An aspirin tablet weighing 0.475 g has been analyzed and contains 68...
chem - An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ...
chemistry - An aspirin tablet weighing 0.502 g has been analyzed and contains 68...
chemistry - An aspirin tablet weighing 0.502 g has been analyzed and contains 68...
college chemistry - An aspirin tablet weighing 0.502 g has been analyzed and ...
Chem. - An aspirin tablet weighing 0.400 g has been analyzed and contains 68.2...
chem - An aspirin tablet weighing 0.650 g has been analyzed and contains 68.2 % ...
molarity - An aspirin tablet weighing 0.475 g has been analyzed and contains 68....
chem - An aspirin tablet weighing 0.650 g has been analyzed and contains 68.2 % ...
chemistry - An aspirin tablet weighing 0.548 g has been analyzed and contains 68...

For Further Reading

First Name:
School Subject:
Answer: