Experimental Chemistry Chapter 1 Flashcards
What is the SI unit for time?
The SI unit for time is seconds (s).
What is the SI unit for temperature?
The SI unit for temperature is kelvin (K).
What is the SI unit for length ?
The SI unit for length is metre (m).
What is the SI unit of mass?
The SI unit for mass is kilogram (kg).
What is the SI unit for volume?
The SI unit for volume is cubic metres (m3).
What are the apparatus used to measure time in a laboratory ?
Digital stopwatch and analogue stopwatch is used to measure time in a laboratory
What are the apparatus used to measure the temperature in a laboratory
Digital thermometer and alcohol thermometer are used to measure time in a laboratory.
What are the apparatus used to measure the length in a Laboratory?
Measuring tape and metre ruler are used to measure length in a laboratory.
What are the apparatus used to measure mass in a laboratory?
Beam balance and electronic balance are apparatus used In a laboratory.
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What are the apparatus used to measure the volume In a laboratory?
Pipette, volumetric flask ,measuring cylinder, burette ,beaker and conical flask are apparatus used in a laboratory.
Why should we position our eyes at the meniscus?
We should position our eyes at the meniscus to avoid parallax error
What is used to measure the volume of gas?
A gas syringe is used to measure the volume of gas.
What are the methods for collecting gas?
1 - water displacement
2 - downward delivery
3 - upward delivery
What are the types of method to separate a solid -solid mixture?
Magnetic attraction, seiving , using suitable solvents are types of method to separate a solid-solid mixture.
What are the types of methods to separate a solid-liquid mixture?
Filtration, evaporation to dryness,crystallisation and simple distillation are methods to separate a solid-liquid mixture.
