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Question
Which of the following will give a buffer with a pH near 4.76 when the acid and conjugate base are mixed in equimolar proportions?| Acid | Ka |
| NH4+(from ammonia) | 5.69 x10-10 |
| HC2H3O2(acetic acid) | 1.75 x10-5 |
| HF (hydrofluoric acid) | 6.8 x10-4 |
| CH3CH2NH3+(from ethylamine) | 2.12 x10-11 |
B) hydrofluoric acid
C) ethylamine
D) none
E) ammonia
Answer
This answer is hidden. It contains 1 characters.
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