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Which of the following solutions when added to 1L of a 0.1 M `CH_3COOH` or in the pH of the solution `K_a=1.8xx10^(-5)` for `CH_3COOH`?A. `3 mM HCOOH (K_a=6xx10^(-4))`B. `0.1 M CH_3COONa`C. `1.34 mM HCl`D. `0.1 M CH_3COOH` |
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Answer» Correct Answer - A,C,D `[H^+]=sqrt(1.8xx10^(-5)xx0.1)=1.34xx10^(-3) M` to which the solution in (A,C & D) are ISOHYDRIC. |
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