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5 votes
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?

2 Answers

3 votes

Answer:

pH at equivalence point will be 7

Step-by-step 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.
User Kelly Bang
by
7.5k points
5 votes

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.
User Cosmoscalibur
by
7.9k points
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