Required Practical

Question 1

what equipment do you need for making salts?

Answer 1

beaker, qauze, tripod, bunsen burner, heatproof mat, filter paper, conical flask, evaporating basin

Question 2

what are the first 5 steps?

Answer 2

-fixed amount of acid
-gently heat, almost boiling
-add small amounts of metal
-stir with a glass rod
-metal will react and disappear

Question 3

what are the next 6 steps?

Answer 3

-add metal until some remains
-use filtration to remove unreacted metal
-gently heat over beaker of boiling water
-heat until half the solution remains
-leave for 24 hours in a cool place for crystals to form
-scrape onto paper towel and pat dry

Question 5

what is a mixture?

Answer 5

no chemicals bonds, elements are easy to separate

Question 6

what is chromatography used for?

Answer 6

to separate out mixtures

Question 7

what is filtration used for?

Answer 7

to separate solids from liquids

Question 8

what are evaporation and crystallisation used for?

Answer 8

to separate a soluble salt from a solution

Question 9

what are the 2 types of distillation?

Answer 9

simple - separating a liquid from a solution
fractional - separating a mixture of liquids