Choose the pair of concentrations that cannot be in a given aqueous solution at 25°C.
A. [H+] = 10 M, [OH–] = 10-15 M
B. [H+] = 10-7 M, [OH–] = 10-7 M
C. All of these can exist.
D. [H+] = 10-13 M, [OH–] = 10-1 M
E. [H+] = 10-3 M, [OH–] = 10-11 M
A. [H+] = 10 M, [OH–] = 10-15 M
B. [H+] = 10-7 M, [OH–] = 10-7 M
C. All of these can exist.
D. [H+] = 10-13 M, [OH–] = 10-1 M
E. [H+] = 10-3 M, [OH–] = 10-11 M
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I don't see a reason why any of these shouldn't be able to exist. These are essentially just solutions with varying ranges of acidity and basicity. A solution can have any pH so I would choose the answer C.
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They can all exists. [H+]*[OH-] always equals 10^-14. The first choice is the same as 10^1, which multiplied by the OH- concentration still gives 10^-14. But keep me as far away from that solution as possible..
The answer's B.
The answer's B.
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C