3.4.4 - making insoluble salts

Question 1

what is a precipitate?

Answer 1

an insoluble solid that forms inside a solution

Question 2

how do we make insoluble salts by precipitation

Answer 2

mixing solutions

Question 3

method to separate the insoluble salt from the solution:

Answer 3

1. filter out the salt precipitate
2. rinse the salt with water
   -> this washes off the leftover solution and the salt doesn’t dissolve because its insoluble
3. dry the salt by dabbing it with filter paper