Question

Is water an Arrhenius base?

Answer 1

Water is neutral.

Arrhenius theory of base: A chemical known as an alkali dissolves in an aqueous solution and ionizes into an $\mathrm{OH}-$ ion. The solution contains a significant amount of $\mathrm{OH}-$ ions.

1. The number of hydrogen ions (H+) released determines the strength of an Arrhenius acid, and the amount of released hydroxide ions (OH) determines the strength of an Arrhenius base.
2. The more H+, the more the pH will drop as the ions are released, making the acid stronger.
3. The higher the OH content higher the pH values ​​and stronger bases result in discharged ions.
4. However, on the pH scale, water is a neutral molecule.
5. The pH scale allows the contrast of various acids and bases concerning water, which has a pH of 7.
6. Dissociation with water produces both H+ and OH-.
7. ${\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}^{+}+{\mathrm{OH}}^{-}$
8. According to Arrhenius's theory, water is a neutral chemical.
9. pH value range of water on temperature change.

T (°C)	pH
0	7.47
10	7.27
20	7.08
25	7.00
30	6.92
40	6.77
50	6.63
100	6.14

Hence, Water is neutral.