PH Calculations

The PH Scale is determined in terms of \([H+]\)

Acids are in-between \([H+] = [1 \times 10^{1}]\) and \([H+] = [1 \times 10^{7}]\).

Alkalines are in-between \([H+] = [1 \times 10^{7}]\) and \([H+] = [1 \times 10^{14}]\)

Neutral is at \([H+] = [1 \times 10^{7}]\)

Info taken from UTT Instructure

• Formula: \(pH = -log[H_{3}O+]\)
• Example:
  1. If Morality of Hydrogen Chloride is \(0.0025M\). Assume HCI is a strong acid and is 100% ionized in water.
     • \(pH = -log(0.0025) = -(-2.60) = 2.60\)
  2. If Morality of Hydrogen Chloride is \(3.467 \times 10^{-4}\). Assume HCI is a strong acid and is 100% ionized in water.
     • \(pH = -log(3.467 \times 10^{-4}) = -(-3.46) = 3.46\)

Info taken from UTT Instructure

• Formula: \(pOH = -log[OH-]\)

• Formula: \(14 = pOH + pH\)