1.A buffer solution contains 0.435 M ammonium chloride and 0.211 M ammonia . If 0.0269 moles of sodium hydroxide are added to 150 mL of this buffer,

1.A buffer solution contains 0.435 M ammonium chloride and 0.211 M ammonia. 

If 0.0269 moles of sodium hydroxide are added to 150 mL of this buffer, what is the pH of the resulting solution ? 

(Assume that the volume does not change upon adding sodium hydroxide)

pH = 

2.0.249hydrofluoric acid0.468potassiumfluoride

0.0347hydrobromic acid150.

hydrobromic acid