Question

is it the first one ??
Given a solution with a pOH of 13.6, what is the [OH-] of the solution?

13.6 M

2.51 x 10-14 M

0.4 M

3.98 x 10-1 M

Answer 1

the relationship between [OH] and pOH is the same as the relationship between [H+] and pH\[pOH = -\log[OH^{-1}]\]and\[[OH^{-1}] = 10^{-pOH}\]

Answer 2

so is it the first one cause they are the same? @JFraser

Answer 3

if the concentration were the same thing as the pOH, there would be no need for both of them. They are not the same, the answer is not the first one

Answer 4

the last one ?

Answer 5

actually I think its .4

Answer 6

@JFraser ??

Answer 7

get a calculator and plug it in, there's no need to guess

Answer 8

i did it got .4

Answer 9

then you did it wrong

Answer 10

\[10^{-13.6}\] should be a whole lot smaller than 0.4

Answer 11

then it is the last one @JFraser

Answer 12

it's not the last one either

Answer 13

\(10^{-13.6}\) is incredibly small

Answer 14

its the second

Answer 15

it is, but you need to know how to calculate logarithm and antilog functions to properly calculate pH, pOH, [H+] and [OH-] concenrations