Asked by louren
Among the following Ka values, which represents the strongest acid?
A. Ka = 1.2 x 10-3
B. Ka = 3.4 x 10-5
C. Ka = 8.7 x 10-8
D. Ka = 5.8 x 10-10
would the answer be A? please explain, don't just give me the answer.
A. Ka = 1.2 x 10-3
B. Ka = 3.4 x 10-5
C. Ka = 8.7 x 10-8
D. Ka = 5.8 x 10-10
would the answer be A? please explain, don't just give me the answer.
Answers
Answered by
DrBob222
Yes, A is the correct answer.
In the acid, HA, it ionizes as
HA ==> H^+ + A^-
Ka = (H^+)(A^-)/(HA)
The acidity of a solution depends upon the (H^+) so the higher that is the stronger the acid. Look at Ka values. If Ka is large then the numerator (the H^+) is larger. For the choices given,
A is stronger than B which is stronger than C which is stronger than D.
In the acid, HA, it ionizes as
HA ==> H^+ + A^-
Ka = (H^+)(A^-)/(HA)
The acidity of a solution depends upon the (H^+) so the higher that is the stronger the acid. Look at Ka values. If Ka is large then the numerator (the H^+) is larger. For the choices given,
A is stronger than B which is stronger than C which is stronger than D.
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