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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Explain the types of buffer solutions.

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प्रश्न

Explain the types of buffer solutions.

थोडक्यात उत्तर
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उत्तर

There are two types of buffer solutions:

  1. Acidic buffer:
    A solution containing a weak acid and its salts with strong base is called an acidic buffer solution. It maintains an acidic pH.
    e.g. A solution containing weak acid such as CH3COOH and its salt such as CH3COONa is an acidic buffer solution.
  2. Basic buffer:
    A solution containing a weak base and its salt with strong acid is the basic buffer solution. It maintains an alkaline pH.
    e.g. A solution containing a weak base such as NH4OH and its salt such as NH4Cl is a basic buffer solution.
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पाठ 3: Ionic Equilibria - Short answer questions (Type- II)

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.


Cu is precipitated as CuS while  Zn is not precipitated when H2S is passed through an acidic solution of Cu(NO3 )2  and Zn(NO3)2 respectively.


Choose the most correct answer:

Which of the Na following is a buffer solution?


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 :

CH3COOH + CH3COONa


Answer the following in one sentence :

Classify the following buffers into different types :

NH4OH + NH4Cl


In biochemical system, pH of blood in our body is maintained due to the following buffer:


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.


Write one application of the following buffer:

Citrate buffer


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.


Veronal is used as a/an ______.


____________ 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 ____________.


The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salts is given by ____________.


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.


Define Acidic buffer solution.


What is the pH of buffer solution prepared by mixing \[\text{0.2MNH4OHand0.4MNH4Cl}\] solution. \[(\mathrm{pK_{b}~of~NH_{4}OH=4.620})\]


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