Which of the following may be added to one li | vedclass

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(A) buffer solution is formed by a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.In option $(A)$,$1 	ext{ mole

Vedclass · Accepted Answer

$1 	ext{ mole of } HC_2H_3O_2 	ext{ and } 0.5 	ext{ mole of } NaOH$

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(A) buffer solution is formed by a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.In option $(A)$,$1 	ext{ mole of } HC_2H_3O_2$ (weak acid) reacts with $0.5 	ext{ mole of } NaOH$ (strong base) to produce $0.5 	ext{ mole of } NaC_2H_3O_2$ (conjugate base) and leaves $0.5 	ext{ mole of } HC_2H_3O_2$ unreacted.Since the solution contains both a weak acid and its conjugate base,it acts as a buffer.

Which of the following may be added to one litre of water to act as a buffer?

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