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Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionisation constant of HA is 10−5, the ratio of salt to acid concentration in the buffer solution will be:
  • a)
    4 : 5
  • b)
    1 : 10
  • c)
    10 : 1
  • d)
    5 : 4
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Addition of sodium hydroxide solution to a weak acid (HA) results in a...
Calculation of the ratio of salt to acid concentration:
- The pH of the buffer solution is given as 6. The pH of a buffer solution can be calculated using the Henderson-Hasselbalch equation:
pH = pKa + log([salt]/[acid])
- Given that the ionization constant (Ka) of HA is 10^-5, the pKa will be equal to -log(10^-5) = 5.
- Substituting the values in the Henderson-Hasselbalch equation, we get:
6 = 5 + log([salt]/[acid])
log([salt]/[acid]) = 1
[salt]/[acid] = 10

Ratio of salt to acid concentration:
- The ratio of salt to acid concentration in the buffer solution is 10:1, which corresponds to option 'd'.
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Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionisation constant of HA is 10−5, the ratio of salt to acid concentration in the buffer solution will be:a)4 : 5b)1 : 10c)10 : 1d)5 : 4Correct answer is option 'D'. Can you explain this answer?
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Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionisation constant of HA is 10−5, the ratio of salt to acid concentration in the buffer solution will be:a)4 : 5b)1 : 10c)10 : 1d)5 : 4Correct answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionisation constant of HA is 10−5, the ratio of salt to acid concentration in the buffer solution will be:a)4 : 5b)1 : 10c)10 : 1d)5 : 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionisation constant of HA is 10−5, the ratio of salt to acid concentration in the buffer solution will be:a)4 : 5b)1 : 10c)10 : 1d)5 : 4Correct answer is option 'D'. Can you explain this answer?.
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