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Published byDemarcus Hauke Modified over 2 years ago

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Measurement in the Laboratory Proper Techniques Explained

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Precision Vs. Accuracy Accurate but not precisePrecise but not accuratePrecise AND accurate

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Precision Vs. Accuracy

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Tools Used in Lab Striker Mortar and pestle Ring stand Beaker Erlenmeyer flask Bunsen burner Clamp Funnel Stirring rod Pipette Tongs Watch glass

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Tools for Lab Measurement Ruler Graduated Cylinder Thermometer Two-Pan or Triple-Beam Balance

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A Note About Precision You must look at the effective range and increments of measurements on the instrument you are using.

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Thermometers What are the increments? How much can you safely estimate?

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Pan Balances What are the increments? How much can you safely estimate?

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Rulers What are the increments? How much can you safely estimate? A BCDEFGHIJKLMN

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Graduated Cylinders What are the increments? How much can you safely estimate?

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