1. When titrating a sample of NaOH against HN * O_{3} and or H_{2}*S * O_{4} (having the same molarity), Explain the reason for using about twice the volume of NaOH when it reacts with H_{2}*S * O_{4} compared to the NaOH volume needed when it reacts with HN * O_{3} .
To balance the reactants
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