Homework Help: Chemistry

Posted by Jerry on Sunday, September 18, 2011 at 9:49am.

Calculate the percent composition by mass of each element in Al(OH)3
Use at least 3 significant figures.

%Al =
%O =
%H=

Chemistry - DrBob222, Sunday, September 18, 2011 at 12:56pm
%Al = (atomic mass Al/molar mass Al(OH)3) x 100 = ??
The other elements are done the same way.

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