Calculate the [OH−] of each aqueous solution with the following [H3O+].

Question

baking soda, 1.0×10⁻⁸ M

orange juice, 2.5×10⁻⁴ M

milk, 5.0×10⁻⁷ M

bleach, 6.0×10⁻¹² M

Answer 1

(H3O+)(OH-) = 1x10^-14

OH = 1x10^-14/ H3O

plug in values of H3O and solve for OH-