Question

Complete the chemical reaction that occurs when dimethylamine ${\left(C{H}_3\right)}_{2}NH$ reacts with water?

Answer 1

Hint: A chemical reaction is a process that results in the chemical change of one set of chemical substances into another set of chemical substances. Chemical reactions are often defined as changes in the locations of electrons in the formation and breaking of chemical bonds between atoms, with no change in the nuclei (no change in the elements present), and may be represented using a chemical equation.

Complete answer:
The chemical compound dimethylamine has the formula (CH3)2NH. This secondary amine is a flammable, colourless gas that smells like ammonia. Dimethylamine is often found in commercial applications as a solution in water with concentrations up to 40%. Dimethylamine is extensively dispersed in animals and plants, and it may be found in a few mg/kg concentration in various meals. Dimethylamine is nitrosated to produce dimethylnitrosamine, which is a carcinogen.
That dimethyl amine is a good weak base (stronger than ammonia).
With water we get
 ${(C{H}_3)}_{2}NH+H_{2}O\to {(C{H}_3)}_{2}N{H_2}^{+1}+O{H}^{-1}$
The amine forms an ammonium ion (Dimethyl ammonium ion) and a hydroxide ion in water. The reaction is similar to ammonia in water, producing ammonium and hydroxide ions.
A nitrogen atom with two methyl substituents and one proton makes up the molecule. Dimethylamine is a weak base, and the ammonium ${(C{H}_3)}_{2}N{H_2}^{+1}$ has a pKa of 10.73, which is higher than methylamine (10.64) and trimethylamine (9.79).
Dimethylamine forms salts when it interacts with acids, such as dimethylamine hydrochloride, an odourless white solid with a melting point of $171.5{}^{\circ }C$ . The catalytic interaction of methanol and ammonia at high temperatures and pressure produces dimethylamine.

Note:
The ammonium cation has the chemical formula $N{H_4}^{+}$ and is a positively charged polyatomic ion. The protonation of ammonia produces it ( $N{H}_3$ ). Ammonium also refers to positively charged or protonated substituted amines and quaternary ammonium cations ( $N{R_4}^{+}$ ) that have one or more hydrogen atoms replaced by organic groups (indicated by R).