Making Insoluble Salts

Question 1

What is a precipitate?

Answer 1

A precipitate (ppt) is an insoluble solid that forms inside a solution.

Question 2

When mixing a solution, how can we tell if a precipitate will form?

Answer 2

By mixing up their compounds and seeing if either of the resulting compounds is soluble

Question 3

What do we call the ions that aren’t involved in making the precipitate?

Answer 3

Spectator ions.

Question 4

What is an ionic equation?

Answer 4

The simplified equation of making a precipitate, not involving the spectator ions.

Question 5

What are the 3 steps for separating the salt from the solution?

Answer 5

1. Filtering out salt precipitate, the residue being the salt we keep
2. Rinse the salt with water to wash off traces of leftover solution
3. Dry the salt by dabbing it with filter paper to remove last few traces of water