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Why is KOH considered to be an Arrhenius base?

Sagot :

indrawboy

KOH is a base according to Arrhenius because it can release OH-ions in water

Further explanation

According to Arrhenius, acids are substances which, when dissolved in water, release H release ions.

The acid in water will undergo ionization:

HₓY (aq) --------> xH⁺ (aq) + Yˣ- (aq)

Example:

HCl -------> H⁺ + Cl⁻

The amount of H⁺ ions produced by 1 acid molecule is called acid valence, whereas acidic residuals are formed after the release of H⁺ ions.

Usually, the name acid begins with the word acid followed by the name of the remaining acidic ion

 

A base is a substance when dissolved in water, can produce OH⁻ ions.

Generally a metal hydroxide M(OH)ₓ

Ionization in water:

M(OH)ₓ (aq) ---> Mˣ⁺ (aq) + xOH⁻ (aq)

Like acids, the amount of OH⁻ ions released is called base valence

KOH is one of the strong bases because bases from alkali and alkaline earth metals in the periodic system are generally strong bases

KOH itself if dissolved in water will undergo ionization:

KOH (aq) -> K⁺ (aq) + OH⁻ (aq)

So KOH produces OH⁻ ions so that KOH can be said to be alkaline according to the concept of Arrhenius

Learn more

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