Question

write the balance chemical equations for the (1) reaction of each of the following amines with water and (2) neutralization with HBr: a. ethylmethylamine b. propylamine c. N-methylanaline

Answer 1

Solution :

1) Balanced reaction with water and HBr

Amine reacts with water and form ionized amine in which nitrogen is tetravalent and posses a positive charge.

A) Ethylmethyl amine + water

CH3CH2NHCH3 + H2O --> CH3CH2NH2+CH3 + OH-

Reaction with HBr:

CH3CH2NHCH3 + HBr --> CH3CH2NH2+CH3. Br-

B) Propylamine + Water

CH3CH2CH2NH2 + H2O --> CH3CH2CH2NH3+ + OH-

Reaction with HBr:

CH3CH2CH2NH2 + HBr --> CH3CH2CH2NH3+.Br-

C) N-methylaniline + water

C6H5NHCH3 + H2O ---> C6H5NH2+CH3 + OH-

Reaction with HBr:

C6H5NHCH3 + HBr --> C6H5NH2+CH3.Br-