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प्रश्न
Define buffer solution.
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उत्तर
A buffer solution is defined as a solution which resists drastic changes in pH when a small amount of strong acid, strong base, or water is added to it.
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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?
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 :
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Answer the following in one sentence :
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Answer the following in one sentence :
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Cu(OH)2 + CuCl2
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`"HCO"_3^- + "H"_2"CO"_3`
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What is the pH of 0.5 litre buffer solution containing 0.01 mole of CH3COOH and 0.01 mole of CH3COONa?
[pKa of acid = 4.74]
____________ forms a basic buffer solution.
Which will make basic buffer?
The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salts is given by ____________.
Which of the following will produce a buffer solution when mixed in equal volumes?
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Reason (R): A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution around \[\ce{pH}\] 4.75.
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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?
What are buffer solutions?
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What is the pH of buffer solution formed by mixing 0.01 M acetic acid and 0.05 M sodium acetate? (pKa = 4.7447)
What is the pH of buffer solution prepared by mixing \[\text{0.2MNH4OHand0.4MNH4Cl}\] solution. \[(\mathrm{pK_{b}~of~NH_{4}OH=4.620})\]
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?
