Chem J

Question 1

what is chromatography

Answer 1

ink seperated based on there solubuility

Question 2

rf/retention factor

Answer 2

ratio between distance travelled by solvent and distance travelled by compound the higher the rf the further the distance travelled by the substance than the solvent

Question 3

rf formula

Answer 3

distance moved by substance/distance moved by solvent

Question 4

stationary phase

Answer 4

where particles cant move such as the filter paper

Question 5

mobile phase

Answer 5

where particles can move like water

Question 6

solvent line/solvent

Answer 6

maximum possible distance which is why it has to be between 0 and 1

Question 7

hydrogen gas test

Answer 7

squeaky pop test where a burning splint is placed in a glass tube and will make a pop sound if hydrogen is present

Question 8

oxygen

Answer 8

place a glowing splint into test tube and splint will relight if oxygen is present

Question 9

carbon dioxide

Answer 9

place gas syringe to limewater and if it turns milky/cloudy carbon dioxide is present

Question 10

chlorine

Answer 10

place damp litmus paper into gas. If chlorine is present, it will bleach the litmus paper white