Answer:
1. pH is 4.66.
2. pH is 3.44.
3. pOH is 11.54.
Explanation:
1. Determination of the pH.
Concentration of Hydrogen ion, [H+] = 2.17×10^-5M
pH =..?
pH = –Log [H+]
pH = –Log 2.17×10^-5
pH = 4.66
2. Determination of the pH.
pOH = 10.56
pH =..?
pH + pOH = 14
pH + 10.56 = 14
Collect like terms:
pH = 14 – 10.56
pH = 3.44
3. Determination of the pOH.
Concentration of Hydrogen ion, [H+] = 3.48×10^-3M
pOH =..?
First, we shall determine the pH of the solution. This is illustrated below:
pH = –Log [H+]
pH = –Log 3.48×10^-3
pH = 2.46
Now, we can determine the pOH of the solution. This is illustrated below:
pH = 2.46
pOH =..?
pH + pOH = 14
2.46 + pOH = 14
Collect like terms
pOH = 14 – 2.46
pOH = 11.54
