Chemistry 8.3.2

Question 1

How can Metal Ions Present in Aqueous Solution be Identified?

Answer 1

By the Colour of the Precipitate (Salt) they Form when Sodium Hydroxide is Added.

Question 2

Why is NaOH Added Very Slowly when Trying to Identify Metal Cations in Aqueous Solution? (2)

Answer 2

-If only a Small Amount is Added, it would Precipitate- not the Metal Cation.

-If Added in Excess, Some of the Precipitate may Dissolve.