Wednesday
September 17, 2014

Homework Help: Chemistry

Posted by plsHelp on Wednesday, September 4, 2013 at 8:28am.

-A sample consist 90% NaOH and 10% CaO,whats the concentration of NaOH in the solution of this 3g sample,dissolved in 250cm3.
-How many cm3 of H2SO4 with concentration of 0.255M are needed for titration of 100cm3 of this solution

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