Question

Calculate the concentration of all species in a 0.210M C6H5NH3Cl solution. Enter your answers numerically separated...

Calculate the concentration of all species in a 0.210M C6H5NH3Cl solution.

Enter your answers numerically separated by commas. Express your answer using two significant figures.

[C6H5NH+3], [Cl?], [C6H5NH2],[H3O+], [OH?] = M?

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Answer #1

C6H5NH3+ + H2O------------------> C6H5NH2 + H3O+

0.210                                            0                        0

0.210-x                                                 x                   x

Ka= [ C6H5NH2][ H3O+]/[C6H5NH3+]

2.3 x10^-5 = x^2/(0.210-x )

x= 2.18 x10^-3

[C6H5NH+3]= 0.20M, [Cl- ] =0.21M , [C6H5NH2]=2.2 x10^-3M , [H3O+]=2.2 x10^-3M,   [OH?] = 4.5x10^-12M

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