pH of a buffer solution composed of `NH_(3) and NH_(4)Cl` is 9.26. will there be any change in pH if 100 mL of distilled water is added to 100 mL of this buffer solution?

Explanation

For the buffer solution made up of `NH_(3) and NH_(4)Cl`. pH of the solution is given by `pH=14-pK_(a)-"log"([NH_(4)Cl])/([NH_(3)])`
If 100 mL of distilled water is added to 100 mL of this buffer solution, no change occurs in the ratio of `[NH_(4)Cl]` to `[NH_(3)]` and pH of the solution remains the same.