Question

Find the hydroxide ion concentration [OH-] of an HCl solution with a pH of 2.75.

[OH-]=
M (Use 2 decimal places)

Answer 1

5.62e-12 M

Step-by-step explanation:

Since pH is concetration of H+

pOH is concentration of OH-

so 14-2.75= POH =11.25

and since 10^-PoH = concetration in Molarity

10^-11.25

5.62e-12