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If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?
Correct answer is '5'. Can you explain this answer?
Most Upvoted Answer
If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp...
As pH = 12
pOH = 14 − 12 = 2
[OH] = 10 − 2M = 0.01M/L
In case of Ba(OH)s2 ⇌ Ba2s+ + 2OH2s−
As 2s = 0.01m/L
s = 0.01 / 2 = 5×10−3m/L
Ksp for Ba(OH)2 = 4s3 = 4(5 × 10−3)3 = 5 × 10−7M3
Hence ‘n’ = 5
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If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp...
Given Information:
- pH of a saturated solution of Ba(OH)2 is 12
- K(sp) value is n×10^-7 M^3
Solution:
Step 1: Calculate the concentration of OH- ions in the solution
- pH = 12
- pOH = 14 - pH = 2
- [OH-] = 10^-pOH = 10^-2 = 0.01 M
Step 2: Write the dissociation equation for Ba(OH)2
- Ba(OH)2 ⇌ Ba^2+ + 2OH-
Step 3: Set up the equilibrium expression for the dissociation of Ba(OH)2
- K(sp) = [Ba^2+][OH-]^2
Step 4: Substitute the values into the equilibrium expression
- K(sp) = [Ba^2+][OH-]^2
- K(sp) = (x)(0.01)^2
- K(sp) = 0.01x
Step 5: Calculate the value of 'n'
- Given K(sp) = n×10^-7 M^3
- 0.01x = n×10^-7
- n = 0.01x / 10^-7
- n = x / 10^-5
From the given information, the value of 'n' is 5.
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If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer?
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If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer?.
If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If pH of a saturated solution of Ba(OH)2 is 12, the value of its K(sp) is found to be n×10-7M3. find the value of ‘n’ here?Correct answer is '5'. Can you explain this answer?.
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