Chapter 1 Flashcards
S.i. unit for mass
kg
What is used to measure mass
beam balance & electronic balance
S.i. unit for time?
Seconds (s)
What is used to measure time
Analogue stopwatch & Digital stopwatch
S.i. unit for temperature?
Kelvin (K) but Degree Celcius is more commonly used
Conversion for Kelvin to Degree celcius?
1Kelvin =1 degree celcius
Apparatus for measuring temperature?
Mercury / alcohol thermometer or Data logger
Thermometer accurate to 1d.p, while Data logger is more accurate & can measure temperature over long time & produce graphs
S.i. unit for volume?
Cubic metre (m^3)
Accuracy of measuring cylinders?
1d.p. (e.g. 10.5cm^3)
What is the thingy with tap used to control amount of liquid you add
Burette
Accuracy of the Burette?
2d.p. (e.g. 25.00cm^3)
What is the appartus with the thick part in thr middle of the tube
Pipette
Accuracy of the Pipette?
1 d.p. (e.g. 25.0cm^3)
Accuracy of the Pipette?
1 d.p. (e.g. 25.0cm^3)
Difference between pipette and burette
Burette measures any volume & allows control of addition, while Pipette meausres only fixed volume indicated on it
Displacement of water is used to collect what type of gases
Insoluble gases
Downward delivery is used for what kind of gases?
Gases that are denser than air and soluble in water
What gases are collected using the method of upward delivery
Gases that are less dense than air and soluble in water
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