volume of chem equitment

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8 Terms

1
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Graduated cylinders

10ml- record to 2 decimal places

25ml- record to 1 decimal place

100ml- record to 1 decimal place

500ml- +\- 5ml

2
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Buret

50ml- always 2 decimal places

3
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Graduated pipet

10ml- record 2 decimal places

4
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Fixed volume pipets

+\- 0.2% of capacity

Ex: 25 ml= +\- 0.05 ml

5
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Beakers and flasks

Never use to measure precise amount of liquid

5% capacity

6
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Thermometer

Alcohol or mercury- +\- 0.2 degrees Celsius

TI CBL temperature probe- +\- 0.1 degrees Celsius

7
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pH measurements

oh paper- +\- 1pH unit

TI CBL pH probe- +\- pH units

8
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Pressure

TI CBL pressure probe- +\- 2kPa