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Krishna Deepakrao Kulkarni Grade: 12
        

A saturated solution of o-nitrophenol has PH=4.53. Calculate its solubility. PKa=7.23

8 years ago

Answers : (1)

Ramesh V
70 Points
										

C6H5NO3----> C6H4NO3- + H+


                                    x                       x


lets solubility be x


so PH = 4.53 or [H+] = 10-4.53  so x = 10-4.53


PKa = 7.23 or [H+] = 10-7.23


Ka = [C6H4NO3-] [H+]   


[C6H4NO3-] = Ka / [H+]

                           = 10 -7.23+4.53


                        solubility   = 2x10-3 g/L

8 years ago
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