Answered

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1. Compare the volumes of 0.1 mol/L sodium hydroxide solution required to neutralize equalvolumes of 0.1 mol/L solutions ofa. nitric acid, HNO3, =b. phosphoric acid, H₃PO₄. =DoubleTripleHalfSame

Sagot :

The balanced neutralization reaction between NaOH and HNO₃ is:

NaOH + HNO₃ ----> NaNO₃ + H₂O

The balanced neutralization reaction between NaOH and H₃PO₄ is:

3 NaOH + H₃PO₄ -----> Na₃PO₄ + 3 H₂O

If we compare the coefficients we see that we need the triple volume of the NaOH solution to neutralize the Phosphoric Acid solution.

Answer: Triple.

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