Salts

Question 1

A toilet cleaner contains the acid salt, sodium dihydrogen phosphate, NaH2PO4. Explain why sodium dihydrogen phosphate is both an ‘acid’ and a ‘salt’.

Answer 1

Sodium dihydrogen phosphate is a acid because it produce H+ ions when dissolved in water. The H+ ions give the aqueous sodium dihydrogen phosphate its acidic properties.
Sodium dihydrogen phosphate is a salt because it is formed when one hydrogen atom of phosphoric acid is replaced by a metal ion Na+.