Question

What is the name of the salt product formed from a neutralization reaction between butanoic acid and sodium hydroxide?

Answer 1

sodium butanoate

Explanation:

the net ionic equation for neutralisation is `H^+ + OH^(-) rarr H_2O`.

this is because the hydrogen ion dissociates from the acid, and the hydroxide ion dissociates from the metal hydroxide.

the neutralisation reaction forms a metal salt and water.

since the `H^+` and `OH^-` form `H_2O`, the formula of the salt is the formula of the acid minus a hydrogen ion, and the formula of the metal hydroxide minus the hydroxide ion.

the acid is `CH_3CH_3CH_2COOH`. without a hydrogen ion, this is `CH_3CH_3CH_2COO`.

the metal hydroxide is `NaOH`. without a hydroxide ion, this is `Na`.

the symbol for the metal salt is given by adding the symbol for the ionised metal to the symbol for the ionised acid.

hence, the symbol is `CH_3CH_3CH_2COONa`, or `Na(C_3H_7COO)`.

its IUPAC name is sodium butanoate.