Posted by Cynthia on Wednesday, February 29, 2012 at 8:20pm.
mols Al = grams/atomic mass
Use the coefficients in the balanced equation to convert mols Al to mols KOH.
Then convert mols KOH to g. g = mols x molar mass.
All of these are done this same way with these three steps. (Sometimes the first step is mols = M x L if it is a soln. Sometimes they stick a percent yield at the end. But basically these three steps will do it.)
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