MHT CET202619 April 2026Evening ShiftChemistryIonic EquilibriumActual
Calculate the [ H ₃ O ^+] if pH of the solution is 4.25
Options
- A6.123 10⁻⁵ M
- B5.623 10⁻⁵ M
- C4.508 10⁻⁵ M
- D4.085 10⁻⁵ M
Correct answer
B. 5.623 10⁻⁵ M
Step-by-step solution
pH = - [ H ₃ O ^+] [ H ₃ O ^+] = 10^ - pH [ H ₃ O ^+] = 10^ -4.25 [ H ₃ O ^+] = 10^ 0.75 10⁻⁵ [ H ₃ O ^+] = 5.623 10⁻⁵ M Answer: 5.623 10⁻⁵ M