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LANGUAGE OF THE LABUsing Laboratory Tools Properly!
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STORAGE
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BEAKERS• Used for containing liquids.• Scale printed on the glass
is just an estimation---not accurate, and not used for measuring out precise amounts of liquids!
• Can be heated.
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• Used for storing liquids.• Narrow neck allows for easy
storage, it can be closed using either a cork or parafilm!
• NOT used for measuring! The amounts printed on the flask is highly inaccurate and only allows for the estimation of amounts!
ERLENMEYER FLASKS
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• Used to contain, mix, and store small amounts of liquids
• Not used for measurement of liquids
• Not accurate
TEST TUBES
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• Used to store and centrifuge very small amounts of liquids.
• Not used for measurement.
MICRO-CENTRIFUGE TUBES
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MEASURMENT
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• Used for Measuring liquid amounts with an accuracy of a tenth of a mL.
• Good for relatively large amounts of liquids when precise accuracy is not needed!
GRADUATED CYLINDER
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• Allows for precise and accurate dispensing of solutions.
• Accurate to 1/100th of a mL• Used in titrations to evaluate
the PH of an unknown solution.
BURET
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• Micropipettes—used to precisely dispense small amounts (microliters) of liquid.
• Pipettes—used to precisely dispense milliliters of a solution.
• Disposable Pipettes—used for transferring liquid, not accurate!
PIPETTES
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TOOLS
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• Used to mix small amounts of liquid
• Must be balanced just like the large version used in chemistry
MICRO-CENTRIFUGE
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• Hot Plate—Used to heat up solutions. Hard to maintain a specific temperature!
• Hot Water Bath—Used to heat up solutions at a precise and constant temperature!
HEATING
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• Power Source used to run a consistent and known amount of voltage through a electrophoresis cell
• Gel Electrophoresis Cell—is used to separate molecules based on charge, size, and shape
POWER SOURCE AND GEL ELECTROPHORESIS CELLS