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प्रश्न
Answer the following in one sentence :
Classify the following buffers into different types :
NH4OH + NH4Cl
पर्याय
Acidic buffer
Basic buffer
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उत्तर
NH4OH + NH4Cl - Basic buffer
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संबंधित प्रश्न
The ionization constant of benzoic acid is 6.46 × 10–5 and Ksp for silver benzoate is 2.5 × 10–13. How many times is silver benzoate more soluble in a buffer of pH 3.19 compared to its solubility in pure water?
When NH4 Cl and NH4OH are added to a solution containing both, Fe3+ and Ca2+ ions, which ion is precipitated first and why?
A solution of NH4Cl and NH4OH acts as a buffer.
Answer the following in one sentence :
How are basic buffer solutions prepared?
Answer the following in one sentence :
Write one property of a buffer solution.
The pKb of weak base BOH [Kb(BOH) = 1 × 10-5] will be ______.
Write the formula to calculate pH of buffer solution.
Define buffer solution.
Explain the types of buffer solutions.
Write one application of the following buffer:
NH4OH + NH4Cl
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.
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 ____________.
Assertion (A): A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of \[\ce{pH}\] on addition of small amounts of acid or alkali.
Reason (R): A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution around \[\ce{pH}\] 4.75.
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.
Which of the following combinations will constitute a buffer solution?
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]
Define Acidic buffer solution.
Write any four applications of buffer solution.
What are buffer solutions?
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 prepared by mixing \[\text{0.2MNH4OHand0.4MNH4Cl}\] solution. \[(\mathrm{pK_{b}~of~NH_{4}OH=4.620})\]
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].
A buffer solution is prepared by mixing 0.01 М HCN and 0.02 M sodium cyanide. If pKa for HCN is 5.20, what is the pH of solution?
