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Chemistry Chapter 1: Experimental chemistry - Coggle Diagram

- - - - measured in metres(m), other measurements include centimetre(cm), millimetre(mm), and decimetre(dm). 1m = 10dm = 100cm= 1000mm
        
        common measuring apparats include the metre rule which has an accuracy of 0.1cm and the measuring tape with an accuracy of 0.1cm to 0.5cm sometimes when measuring atoms and molecules, smaller units are needed
  - - - measured in kelvin(k), other measurements include degree Celsius(deg C)
        
        Temp in K = deg C + 273
        
        Alcohol thermometers have a range of -10deg c to 110deg C. Digital thermometers can also be used as they have a much wider range. temperature sensors or probes are connected to data loggers and can be used to measure temperatures and collect data automatically
  - - - measured in kilograms(kg), other measurements include grams(g) and tonnes(t), measured with an electronic balance with an accuracy of 0.01g
  - - - pipette measures up to an accuracy of 10.0cm3 to 25.0cm3, a volumetric flask measures 100c3 to 250cm3, a measuring cylinder measures to an accuracy to the nearest 0.5 cm3, a burette measures to an accuracy of 0.05cm3
        
        when reading the volume of a liquid, we should position our eyes at the meniscus which is the curve formed at the surface of the liquid in a container, to avoid parallax error.
        
        measuring the volume of gases: to measure the volume of gases, gas syringes are used which measure up to 100cm3
  - - - measured in seconds(s), other measurements include minute(min), and hour(h)
        
        1min = 60s, 1h = 60min = 3600s
        
        measured by a digital stopwatch, which has an accuracy of 0.01s, or analogue stopwatch which has an accuracy of 0.1 s