An acid HA has Ka = 2.28 x 10 -4. The % ionisation of this acid in a 0.170 M solution of the acid in water is closest to
3.662 %
0.623 %
0.498 %
2.930 %
0.436 %
2.564 %
i have an exam in 1 week and these are the types of questions i don't understand
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