Making Salts

Question 1

Step One

Answer 1

use a measuring cylinder to add 40 ml of sulfuric acid in a beaker

Question 2

Step two

Answer 2

gently heat the beaker in a water bath for a couple of minutes

Question 3

Step three

Answer 3

carefully add a spatula of copper oxide powder to the beaker and stir the solution with a glass rod

Question 4

Step four

Answer 4

keeping adding more copper oxide powder until it no longer disappears (add in excess)

Question 5

Step five

Answer 5

filter the mixture to remove the excess copper oxide, then pour the filtrate (the copper sulfate solution) into an evaporating basin

Question 6

Step six

Answer 6

place the evaporating basin above a water bath, and heat the copper sulfate solution to evaporate off half of the water

Question 7

Step seven

Answer 7

pour the solution into a watch glass and leave on the side to allow all of the water to evaporate

Question 8

What is the risk hazard of sulfuric acid?

Answer 8

concentrated acid is corrosive and damages skin and clothes

Question 9

What is the risk hazard with a bunsen burner?

Answer 9

Burns and hair and/or clothes burning

Question 10

What is the risk when using a boiling water bath?

Answer 10

Skin burns

Question 11

What is the risk if the hot salt solution spits?

Answer 11

Damage to eyes and skin