chapter 1 - experimental chemistry

Question 1

SI unit of time and name of apparatus

Answer 1

seconds (s) and stopwatch

Question 2

SI unit of temperature and name of apparatus

Answer 2

kelvin (K) and thermometer

Question 3

SI unit of length and name of apparatus

Answer 3

metre (m) and measuring tape

Question 4

SI unit of mass and name of apparatus

Answer 4

kilogram (kg) and electronic balance

Question 5

SI unit of volume and name of apparatus

Answer 5

cubic metre (m3) and burette/pipette/measuring cylinder, gas syringe

Question 6

separation methods (solid-solid), [give 3 answers]

Answer 6

magnetic attraction, sieving, using suitable solvents

Question 7

separation methods (solid-liquid), [give 4 answers]

Answer 7

filtration, evaporation to dryness, crystallisation, simple distillation

Question 8

separation methods (liquid-liquid), [give 2 answers]

Answer 8

chromatography, fractional distillation

Question 9

how can gases be collected by?

Answer 9

displacement of water/displacement of air

Question 10

how are gases collected by displacement of air?

Answer 10

through

Question 11

options

1. beaker
2. burette
3. measuring cylinder
4. pipette

which of the following apparatus should be used to measure out exactly 25.15cm?

Answer 11

measuring cylinder

Question 12

chlorine gas is denser than air and soluble in water. which of the following is used to collect it?
1. downward delivery
2. sideways delivery
3. upward delivery
4. water displacement

Answer 12

downward delivery