Question

2. Calculate pOH, pH for the following basic solutions, be sure to use the EE function on your calculator for x 10n that is to input 2.56 x 10-4 onto your calculator type 2.45 then EE then -4
(4 pts each)
a. [0H-] = 2.56 x 10-4 M pOH= ____ pH= ____
b. [0H-] = 6.36 x 10-5 M pOH= ____ pH= ____
c. [0H-] = 5.55 x 10-5 M pOH= ____ pH= ____
d. [0H-] = 4.49 x 10-2 M pOH= ____ pH= ____
e. [0H-] = 8.25 x 10-3 M pOH= ____ pH= ____

Answer 1

To calculate the pOH and pH for basic solutions, you can follow these steps:

1. Use the formula pOH = -log[OH-] to find the pOH value.

2. Use the formula pH = 14 - pOH to find the pH value.Let's calculate for each of the given basic solutions:

a. [OH-] = 2.56 x 10^-4 MpOH = -log(2.56 x 10^-4) ≈ -(-3.59) ≈ 3.59pH = 14 - 3.59 ≈ 10.41

b. [OH-] = 6.36 x 10^-5 MpOH = -log(6.36 x 10^-5) ≈ -(-4.197) ≈ 4.197pH = 14 - 4.197 ≈ 9.803

c. [OH-] = 5.55 x 10^-5 MpOH = -log(5.55 x 10^-5) ≈ -(-4.255) ≈ 4.255pH = 14 - 4.255 ≈ 9.745

d. [OH-] = 4.49 x 10^-2 MpOH = -log(4.49 x 10^-2) ≈ -(-1.348) ≈ 1.348pH = 14 - 1.348 ≈ 12.652

e. [OH-] = 8.25 x 10^-3 MpOH = -log(8.25 x 10^-3) ≈ -(-2.083) ≈ 2.083pH = 14 - 2.083 ≈ 11.917

These calculations provide the pOH and pH values for each given basic solution based on their concentrations.

Brainliest would be appreciated