Question

Chemistry Honors:
The pH Scale
Calculate the pH corresponding to each of the hydroxide ion concentrations given below. Tell whether each solution is acidic, basic, or neutral
[OH-] = 7.42 x 10^-5 M

Answer 1

\[P^{OH}=-log[OH^{-}]\]\[P^{H}+P^{OH}=14\] you can calculate pOH and pH from bove relations..
pH=7 ---> neutral
pH>7 ---> basic
pH<7 ---> neutral

Answer 2

thx, i got it

Answer 3

pH<7 ---> acidic