Question

What are alkalis? What ions are present in aqueous sodium hydroxide?

Answer 1

Answer:

When an alkali is diluted the concentration of OH - ions is decreased and the pH decreases towards 7.

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Hydrogen and hydroxide ions.

Alkali name Formula Ionic Formula

Sodium hydroxide NaOH Na +(aq) OH -(aq)

Calcium hydroxide Ca(OH) 2 Ca 2+(aq) 2OH -(aq)

Lithium hydroxide LiOH Li +(aq) OH -(aq)

Explanation:

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