A solution with a pH of 7 has a [OH1-] of?

Question

1 x 10-7 M?? Is that correct

Answer 1

pH=7, pOH=14-pH

no, not correct, pOH is 7.
1E-7 is the OH concentration
P OH=-log (OH)

Answer 2

so its 7m?

Answer 3

7M??

Answer 4

Your original answer of 1E-7M = (OH^-) is correct.