Buffer solutions have constant acidity a...

Buffer solutions have constant acidity and alkalinity because

these give unionised acid or base on reaction with added acid or alkali

acids and alkalis in these solutions are shielded from attack by other ions

they have large excess of `H^+` or `OH^-` ions

they have fixed value of pH

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What is buffer capacity? Whenn does the buffer capacity of a buffer solution consisting of a weak acid and its salt become maximum?

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

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A,B and C are three buffer solutions, each of which composed of a weak acid and its salt. For increasing the pH by 0.02 units, it is found that 1.0, 1.4 and 1.2 millimol of NaOH are required for A,B and C, respectively. Arrange the solutions in the increasinng order of their buffer capacity.

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