Question

Determine if each statement below is True or False regarding Arrhenius and Br∅nsted-Lowry definitions for acids and bases.

1) An Arrhenius acid is a substance that dissolves in water to produce H+ or H3O+.
2) A Br∅nsted-Lowry base is a proton acceptor.
3) CH3COOH is an Arrhenius base.

Answer 1

Answer:

All statements are true

Explanation:

Arrhenius theory:-

The Arrhenius theory was introduced introduced by Swedish scientist named Svante Arrhenius in 1887.

According to the theory, acids are the substances which dissociate in the aqueous medium to produce electrically charged atoms ( may be molecule). Out of these species furnished, one must be a proton or the hydrogen ion, $H^+$.

Hence, statement 1 is correct.

Bronsted-Lowry base is the specie which accepts the proton form the medium. For example, Benzoate ion is the conjugate base of the benzoic acid. It is a Bronsted-Lowry base and the dissociation of benzoate ion can be shown as:-

$C_6H_5COO^-_{(aq)} + H_2O_{(l)}\rightleftharpoons C_6H_5COOH_{(aq)} + OH^-_{(aq)}$

Hence, statement 2 is correct.

Acetic acid will dissociate as:-

$CH_3COOH\rightleftharpoons CH_3COO^-+H^+$

Hence, statement 3 is also correct.