What is the [H3O+] in a solution with [OH-] = 2.5 x 10-2 M?
a.) 4.0 x 10-^12
b.) 4.0 x 10-^2
c.) 2.5 x 10-^2
d.) 4.0 x 10-^13

The in a solution is

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

To calculate the pOH of the solution, we use the equation:

We are given:

Putting values in above equation, we get:

The in a solution is

2b2t

explanation:

2b2t

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b