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Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equivalent–1. The pH of HA solution is(molar conductivity at infinite dilution is 200):
- a)1.3
- b)1.7
- c)2.3
- d)3.7
Correct answer is option 'C'. Can you explain this answer?
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Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equ...
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Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equ...
1.3 is the correct ans . first find alfa 105/200. and the conc. of H+ is C*alfa which is 5.2*10'-2 and the find pH.
here molar conductivity is same as equivalent conductivity.
Hope this help.
here molar conductivity is same as equivalent conductivity.
Hope this help.
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Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equ...
Given:
- Equivalent conductance of HA solution = 100 cm2 equivalent-1
- Molar conductivity at infinite dilution = 200 S cm2 mol-1
To find: pH of HA solution
Step 1: Calculate the equivalent conductance at infinite dilution (Λ∞)
The equivalent conductance at infinite dilution (Λ∞) can be calculated using the formula:
Λ∞ = Λm - K√C
where Λm is the molar conductivity of the solution, K is a constant, and C is the concentration of the solution.
Given that Λ∞ = 200 S cm2 mol-1 and C = 0.1 M, we can substitute these values into the formula to find K:
200 = 100 - K√0.1
Solving for K:
K√0.1 = 100
K = 100/√0.1
K ≈ 316.23
Substituting the value of K back into the previous formula:
Λ∞ = 100 - 316.23√C
Λ∞ = 100 - 316.23√0.1
Λ∞ ≈ 100 - 316.23(0.31623)
Λ∞ ≈ 100 - 100
Λ∞ ≈ 0 S cm2 mol-1
Step 2: Calculate the degree of ionization (α)
The degree of ionization (α) can be calculated using the formula:
α = Λ/Λ∞
Given that Λ = 100 cm2 equivalent-1, we can substitute this value into the formula to find α:
α = 100/0
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Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equivalent–1. The pH of HA solution is(molar conductivity at infinite dilution is 200):a)1.3b)1.7c)2.3d)3.7Correct answer is option 'C'. Can you explain this answer?
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Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equivalent–1. The pH of HA solution is(molar conductivity at infinite dilution is 200):a)1.3b)1.7c)2.3d)3.7Correct answer is option 'C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equivalent–1. The pH of HA solution is(molar conductivity at infinite dilution is 200):a)1.3b)1.7c)2.3d)3.7Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Equivalent conductance of 0.1 M HA (weak acid) solution is 100 cm2 equivalent–1. The pH of HA solution is(molar conductivity at infinite dilution is 200):a)1.3b)1.7c)2.3d)3.7Correct answer is option 'C'. Can you explain this answer?.
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