CHEMISTRY HIGH SCHOOL

What is the ph at the equivalence point when 0.10 m hno3 is used to titrate a volume of solution containing 0.30 g of koh?

Answers

Answer 1
Answer:

Answer;

pH = 7  

Explanation;

  • HNO3 is a strong acid. KOH is a strong base. At the equivalence point, the solution will be neutral.
  • Therefore; the pH at the equivalence point when 0.10 m HNO3 is used to titrate a volume of solution containing 0.30 g of KOH will be 7.
  • The neutralization of a strong base with a strong acid gives a salt solution at the equivalence point. The salt contains ions that do not change the pH of water.
Answer 2
Answer:

Answer:

pH at equivalence point will be 7

Explanation:

  • HNO_(3) is a strong acid and KOH is a strong base. Hence a neutral salt would appear from acid-base reaction between them.
  • Acid-base reaction: HNO_(3)+KOH\rightarrow KNO_(3)+H_(2)O
  • At equivalence point, KNO_(3) and water exists in medium.
  • As KNO_(3) is a neutral salt therefore pH of medium will be equal to 7 (neutral).
  • So, pH at equivalence point will be 7.

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