Anilinec6h5nh2 is a weak base that dissociates in water at, Ask an Expert

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Aniline,C6H5NH2 , is a weak base that dissociates in water. At 25 degrees Celsius, the base dissociation constant, Kb, for aniline is
4.3 * 10-10.

(A) Determine the hydroxide ion concentration and the percentage dissociation of a .150 molar solution of aniline at 25 degrees Celsius.

(B) Determine the pH of a solution prepared by adding .0500 moles of solid C6H5NH3Cl to 100 milliliters of a .150-molar solution of C6H5NH2.

(C) If .0800 mole of solid magnesium chloride, MgCl2, is dissolved in the solution prepared in part (B) and the resulting solution is well-stirred, will a participate of Mg(OH)2 form? Show calculation to support your answer. (Assume the volume of the solution is unchanged. The solubility product constant for Mg(OH)2 is 1.5*10-11).

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