If Na₂HPO₄ is added to water, what other compound could also be added in order to make a buffered solution? A)H₃PO₄ B)NaHPO₄ C)NaH₂PO₄ D)Na₂PO₃ E)none of these is correct

Question

Quizplus · Accepted Answer

A buffered solution requires a weak acid and its conjugate base or a weak base and its conjugate acid. Na₂HPO₄ only provides a strong acid and a strong base, so we need to add a weak acid or weak base. NaH₂PO₄ is the only option that contains a weak acid (H₂) and its conjugate base (_-).

If Na2HPO4 Is Added to Water, What Other Compound Could

If Na₂HPO₄ Is Added to Water, What Other Compound Could