Measuring Experimental Technique

Time
SI unit : Second(s)
equip: stopwatch, stopclock

Temperature
SI unit : Kelvin (K) ; Degree celcius
equip: thermometer, datalogger

Masses
SI unit : kilogram (kg)
equip: electronice balance

Volume
SI unit : m3 (3 is suppose to be small)
Equip : depends on the volume and accuracy needed

Collecting gas
-depends on the solubility
(whether gas is soluble in water)
-density
(how dense gas is compared to air)

Collecting gas - method 1
-Displacement of water, used to collect insoluble gases (hydrogen, oxygen, carbon dioxide)

Collecting gas - method 2
-Downward delivery, used to collect gases that are denser than air and soluble in water

Collecting gas - method 3
-Upward delivery, used to collect gases that are less dense than air and soluble in water

Measuring volume of gas
-using a gas syringe