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प्रश्न
Assertion (A): An aqueous solution of ammonium acetate can act as a buffer.
Reason (R): Acetic acid is a weak acid and \[\ce{NH4OH}\] is a weak base.
पर्याय
Both A and R are true and R is correct explanation of A.
Both A and R are true but R is not correct explanation of A.
A is false but R is true.
Both A and R are false.
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उत्तर
A is false but R is true.
Explanation:
Salt of weak acid and weak base can form buffer solution.
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संबंधित प्रश्न
Answer the following in one sentence :
How are basic buffer solutions prepared?
Answer the following in one sentence :
Classify the following buffers into different types :
NH4OH + NH4Cl
Name the buffer which is used to maintained pH of 8 to 10 for precipitation of cations III A group in qualitative analysis.
Write the formula to calculate pH of buffer solution.
Define buffer solution.
Explain the types of buffer solutions.
A buffer solution contains 0.3 mol dm–3 NH4OH (Kb = 1.8 × 10–5) and 0.4 mol dm–3 NH4Cl. Calculate pOH of the solution.
____________ forms a basic buffer solution.
Which will make basic buffer?
The dissociation constant of a weak acid is 1 × 10−3. In order to prepare a buffer solution with a pH = 4, the `(["Acid"])/(["Salt"])` ratio should be ____________.
Ksp of Al(OH)3 is 1 × 10−15 M. At what pH does 1.0 × 10−3 M Al3+ precipitate on the addition of buffer of NH4Cl and NH4OH solution?
On the basis of the equation \[\ce{pH}\] = – log \[\ce{[H+]}\], the \[\ce{pH}\] of 10–8 mol dm–3 solution of \[\ce{HCl}\] should be 8. However, it is observed to be less than 7.0. Explain the reason.
Calculate the pH of buffer solution composed of 0.01 M weak base BOH and 0.02 M of its salt BA. [Kb = 1.8 × 10–5 for weak base]
Calculate pKa of HF if Ka= 7.2 x 10-4.
Explain the types of buffers with example.
Explain buffer action of sodium acetate-acetic acid buffer.
What is the pH of buffer solution formed by mixing 0.01 M acetic acid and 0.05 M sodium acetate? (pKa = 4.7447)
Calculate the pOH of a buffer solution formed from 0.3 M weak base and 0.45 M of its salt with strong acid [pKb = 4.7447].
