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Applied science , chemistry, unit 2, assignment B CA$19.44   Add to cart
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  7. Unit 2- Practical Scientific Procedures and Techniques

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Applied science , chemistry, unit 2, assignment B

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  • Course
  • Unit 2- Practical Scientific Procedures and Techniques
  • Institution
  • PEARSON (PEARSON)

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Document information

  • March 8, 2023
  • 9
  • 2021/2022
  • Essay
  • Unknown
  • D

Subjects

  • applied science
  • distinction
  • unit 2
  • assignment b
  • learning aim b

Written for

  • BTEC
  • PEARSON (PEARSON)
  • Applied Science 2016 NQF
  • Unit 2- Practical Scientific Procedures and Techniques
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Chemistry – cooling curves



Task 1: Calibration of the thermometer

Equipment

Digital thermometer, liquid thermometer, ice, 2 beaker, Bunsen burner, metal mesh, tripod and
distilled water

Health and safety

 Wearing lab coat with safety goggle
 Read any written work which includes gazed warning before you begin
 Bags and coats must be left under the bench or completely out of the way
 Any accident or spills must be told to the teacher. Rinse skin immediately if it comes in
contact with chemical
 Broken glass must be cautiously placed in the yellow bin provided



Method: calibration of the thermometer using cold water

I filled the beaker with ice and distilled water then placed a digital thermometer in it, making sure
not to touch the side as it may affect the reading. I wait for the thermometer to show a steady
reading before writing it down. I then repeated the experiment until I got 3 temperature reading.
Once finished I do it all again using a liquid thermometer.



Method: calibration of the thermometer using hot water

I set up the experiment by firmly connecting the Bunsen burner to the gas pipe, placing the tripod on
top of the Bunsen burner and covering it with a wire mesh. I then got the beaker, filled it with
distilled water, placed it on the Bunsen burner and start to heat it up until it boils. Once I was done, I
got the digital thermometer and placed it in the beaker making sure it does not touch its side as it
may affect it reading. I waited for the thermometer to show a steady reading before writing it down.
I repeated the experiment until I got 3 temperature result. Once finished, I did it all again using a
liquid thermometer

thermometer Temperature (oC)

1 2 3 Average

Boiling water digital 99.7 99.7 99.7 99.7

liquid 100 100 100 100

Ice water digital 0 0 0 0

Liquid 0 0 0 0

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