Respuesta :
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:
pH at equivalence point will be 7
Explanation:
- [tex]HNO_{3}[/tex] 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: [tex]HNO_{3}+KOH\rightarrow KNO_{3}+H_{2}O[/tex]
- At equivalence point, [tex]KNO_{3}[/tex] and water exists in medium.
- As [tex]KNO_{3}[/tex] is a neutral salt therefore pH of medium will be equal to 7 (neutral).
- So, pH at equivalence point will be 7.
