(a) In water is H2NCH(CH3)2, a strong acid, a weak acid, a strong base, a weak b

Question

(a) In water is H2NCH(CH3)2, a strong acid, a weak acid, a strong base, a weak base, none of these, or cannot be determined? Briefly justify your choice. Write a balanced chemical equation showing H2NCH(CH3)2 in aqueous solution acting as either a strong acid, a weak acid, a strong base, a weak base, none of these, or cannot be determined. This should be based off of your choice in part (a). What can you conclude about the relationship between the molar solute concentration of H2NCH(CH3)2 and the molar concentration of hydroxide or hydronium ion (based on your choice in part (a)) in an aqueous solution of H2NCH(CH3)2?

Explanation / Answer

part A

H2NCH(CH3)2(aq) + H2O(l) -----> +^H3NCH(CH3)2(aq) + OH^-(aq)

weak base

so that dissociation of weak base in water .results a dynamic equilibrium

Kb = [+^H3NCH(CH3)2][OH^-]/[H2NCH(CH3)2]

on increasing concentration of H2NCH(CH3)2 dissociation decreases.so that on dillution dissociation of weakbase increases.so that conductivity increases.

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