Posted by Laura on Thursday, March 21, 2013 at 1:26am.
I assume the 0.0021 is M.
mols KOH = M x L = ?
mols HNO3 = mols KOH (from the coefficients in the equation.)
M HNO3 = mols HNO3/L HNO3. You know mols and L, solve for M.
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