MHT CET202619 April 2026Morning ShiftChemistryIonic EquilibriumActual
What is the pH of solution containing 5 10⁻⁴ M H ^+ ion?
Options
- A4.699
- B3.301
- C5.401
- D3.725
Correct answer
B. 3.301
Step-by-step solution
The pH of a solution is given by the negative logarithm of the hydrogen ion concentration: pH = - [ H ^+] Given [ H ^+] = 5 10⁻⁴ M pH = - (5 10⁻⁴) pH = -( 5 + 10⁻⁴) pH = -( 5 - 4) pH = 4 - 5 Using the value 5 0.699 : pH = 4 - 0.699 = 3.301 Answer: 3.301