Asked by Anonymous
Mulitple choice
What is the concentration of H^+ in solution given the [OH^-]= 1.32x10^-4
a)7.58x10^-11M
b)1.32x10^-11M
C)1.0x10^14M
d)not enough information
E)none of the above
What is the concentration of H^+ in solution given the [OH^-]= 1.32x10^-4
a)7.58x10^-11M
b)1.32x10^-11M
C)1.0x10^14M
d)not enough information
E)none of the above
Answers
Answered by
DrBob222
(H^+)(OH^-) = Kw = 1E-14
Answered by
Anonymous
so is it c? how did u get that please show me how?
Answered by
DrBob222
I honestly hope you're kidding.
The equation I wrote will work ALL problems with one of the two given and you want to calculate the other.
(H^+)(OH^-) = 1E-14
(1.32E-4)(OH^-) = 1E-14
(OH^-) = 1E-14/1.32E-4.
Just punch in the numbers on your calculator and turn the crank. Out comes the answer. It is not c.
The equation I wrote will work ALL problems with one of the two given and you want to calculate the other.
(H^+)(OH^-) = 1E-14
(1.32E-4)(OH^-) = 1E-14
(OH^-) = 1E-14/1.32E-4.
Just punch in the numbers on your calculator and turn the crank. Out comes the answer. It is not c.
Answered by
Dr Russ
As we are not given Kw in the question, my answer would have d)
Answered by
DrBob222
Dr Russ may be right. I've done so many of these I just assumed Kw was known; perhaps my assumption was invalid. In any event, however, given Kw, which I gave in my response, you should be able to calculate one of the quantities when given the other.
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