0.023 ~g of sodium metal is reacted with 100 ~cm ³ of water. The pH of the resulting solution is

Step-by-step solution

2 Na +2 H ₂ O 2 NaOH + H ₂(2 23=46) (2 40=80)0.023 0.04 [ OH ⁻ ]= 0.04 40 10=10⁻² pOH =- [ OH ⁻ ] pOH =2 pH + pOH =14 pH =14- pOH pH =14-2 pH =12