3NaOH + H3PO4 ==> 3H2O + Na3PO4
mols NaOH = M x L = ?
Using the coefficients in the balanced equation, convert mols NaOH to mols H3PO4.
Then M H3PO4 = mols H3PO4/L H3PO4 = ?
A 43.20 mL sample of 0.3260 M sodium hydroxide (NaOH) is required to react completely with 36.70 mL of a phosphoric acid (H3PO4) solution. What is the molarity of the phosphoric acid solution?
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