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10 Cards in this Set
- Front
- Back
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Accuracy
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the agreement between a measured quantity and its accepted value
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analytical balance
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a device for measuring mass that gives highly accurate measurements
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angstrom
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a non SI-unit equal to 1*10^-10 metres, or one tenth of a nanometre, it is especially useful in describing the size of atoms or other small particles
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base units
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SI units that all other units can be derived
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beaker
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piece of laboratory glassware used to measure approximate volumes
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boiling point
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the temperature at which the vapor pressure of a liquid is equal to the applied pressure
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buret
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a volume-deriving device that is calibrated to allow precise measurement of the fluid delivered
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captive zero
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zeros that are between to nonzero digits; captive zeros are always significant
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certain digits
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digits in a measurement that are independent of the experimenter and that are always significant
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chemical change
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a change in the chemical composition of a substance
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