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The pH of a 0.1 M aqueous solution of a weak acid (HA) is 3. What is its degree of dissociation ?A. `10%`B. `25%`C. `50%`D. None of these |
Answer» Correct Answer - D `HA hArr H^(+)+A^(-)` `[H^(+)]=calpha=10^(-3)` As` c=0.1 M implies 0.1 alpha=10^(-3)` or `alpha=10^(=-2)` or `% alpha =1%` |
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