separate a soluble solid from a solution

Question 1

what equipment do you use

Answer 1

beaker, gauze, tripod, heatproof mat, bunsen burner

Question 2

what is step one?

Answer 2

start with a fixed amount of dilute sulfuric acid which is the limiting reactant

Question 3

whats the second step

Answer 3

gently heat the acid till its almost boiling

Question 4

whats the 3rd step

Answer 4

use spatula to add small amounts of copper oxide then stir with glass rod

Question 5

what colour does the solution turn

Answer 5

light blue

Question 6

whats the 4th step

Answer 6

add copper oxide in excess until its not light blue and stop adding when powder remains after stiring

Question 7

what does it mean when some powder remains in the solution

Answer 7

the reaction has stopped

Question 8

how do you remove the excess copper oxide

Answer 8

via filtration

Question 9

how do you make crystals with solution

Answer 9

place the solution in an evaporating basin and heat gently over a beaker of hot water

Question 10

how long do you heat the solution for

Answer 10

until half of it remains

Question 11

what do you do after its heated

Answer 11

leave in a cool place for 24 hours for crystals to form

Question 12

what is the final step

Answer 12

scrape crystals onto paper towel and gently pat them dry