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9 Cards in this Set
- Front
- Back
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Acetone, a common organic solvent can or cannot be disposed of by pouring down the sink?
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Cannot
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What two chemicals are mixed to test conservation of volume as a control experiment?
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Water and Acetone
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A student measures the volume of acetone delivered by a 5 mLvolumetric pipette several times and obtains volumes of 4.99, 4.97, 4.96, 4.91 and 4.97 mL. The average volume delivered by the pipette is 4.96 mL. What is the deviation of the second measurement?
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.01 mL
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A student measures the volume of water delivered by a 5 mL volumetric pipette several times and records measurements of 4.93, 4.97, 4.92, 5 and 5 mL. What is the average of the five measurements? Report your answer to 3 significant figures
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4.96 mL
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Running multiple trials of a measurement is done to ensure that results are?
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Reproducible
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Any student who does not view the safety video, pass the quiz, and sign the safety contract will not be allowed in lab.
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True
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Density is the ratio of what to what?
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Mass, Volume
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Each safety violation costs three points on your safety grade.
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True
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If you mix two liquids and the total mass of the mixture is less than the sum of the masses, then mass is conserved.
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False
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