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The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is?
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The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (...
Use the formula of POH of weak Base.... then u get Pkb and by taking antilog kb can be find...
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The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (...
Introduction:
Hydrazine (N2H4) is a weak base that can ionize in water to form the hydrazine ion (N2H5+) and hydroxide ion (OH-). The ionization constant of hydrazine, also known as Kb, is a measure of the extent to which it ionizes in water.
Given:
Concentration of hydrazine solution (N2H4) = 0.004 M
pH of the solution = 9.7
Calculating the pOH:
pOH is the negative logarithm of the hydroxide ion concentration. It can be calculated using the formula:
pOH = 14 - pH
In this case, the pH is 9.7, so the pOH is:
pOH = 14 - 9.7 = 4.3
Calculating the hydroxide ion concentration (OH-):
The hydroxide ion concentration can be determined using the pOH value and the formula:
[OH-] = 10^(-pOH)
In this case, the pOH is 4.3, so the hydroxide ion concentration is:
[OH-] = 10^(-4.3)
Calculating the hydrazine ion concentration (N2H5+):
Since hydrazine (N2H4) ionizes to form the hydrazine ion (N2H5+), the concentration of the hydrazine ion can be assumed to be equal to the hydroxide ion concentration:
[N2H5+] = [OH-] = 10^(-4.3)
Calculating the concentration of hydrazine (N2H4):
To calculate the concentration of hydrazine (N2H4), we can use the equation for Kb:
Kb = [N2H5+][OH-] / [N2H4]
Substituting the known values:
Kb = (10^(-4.3) * 10^(-4.3)) / 0.004
Simplifying the expression:
Kb = 10^(-8.6) / 0.004
Calculating the value of Kb:
Kb = 2.5 x 10^(-7)
Conclusion:
The ionization constant (Kb) of the 0.004 M hydrazine solution is 2.5 x 10^(-7).
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The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is?
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The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is?.
The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pH of 0.004 M hydrazine solution is 9.7. Its ionization constant (Kb) is?.
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