MHT CET20225 Aug 2022Evening ShiftChemistryIonic EquilibriumActual
What is the pH of a 2.6 10⁻⁸ M H ⁺ ion solution? ( 2.6=0.4150)
Options
- A7.6
- B6.9
- C10.6
- D8.4
Correct answer
B. 6.9
Step-by-step solution
pH =- [ H ⁺ ] As ( H ⁺ ) ion conc. Is less, [ . H ⁺ ] obtained from H ₂ O will be considered [ H ⁺ ] be considered [ H ⁺ ] be considered [ H ⁺ ] be considered aligned & [ H ⁺ ]=2.6 10⁻⁸+1 10⁻⁷ & =1.26 10⁻⁷ aligned =1.26 10⁻⁷ aligned & pH =- [ H ⁺ ] & = (1.26 10⁻⁷ ) & =7- 1.26 & =7-0.1 & pH =6.9 aligned