General Chemistry -Laboratory Techniques Questions And Quality Solutions 2024/25
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Course
CHEM 106
Institution
CHEM 106
Non-calibrated glassware that is used to approximate measurements (not used for actual measurements) - Correct Answer -Test tubes, beakers, erlenmeyer flasks, round-bottomed flasks, transfer pipets, petri dishes, watch glasses, bottles, jars, and vials
Test tubes - Correct Answer -small and ...
General Chemistry -Laboratory Techniques Questions
And Quality Solutions 2024/25
Non-calibrated glassware that is used to approximate measurements (not used for actual
measurements) - Correct Answer -Test tubes, beakers, erlenmeyer flasks, round-bottomed flasks,
transfer pipets, petri dishes, watch glasses, bottles, jars, and vials
Test tubes - Correct Answer -small and allow a large number of samples to be arranged in a stack for
easy processing
Beakers - Correct Answer -wide-mouthed cylinders with a lip to allow pouring
Erlenmeyer flask - Correct Answer -tapered and therefore minimize spills
Round-bottom flask - Correct Answer -used for reaction, heating, or vacuum applications
Calibrated glassware that provide exact volumes at a given temperature - Correct Answer -1) Graduated
cylinder (not as accurate)
2) Buret
3) Graduated pipet
4) Volumetric flask
Graduated cylinder - Correct Answer --volume markings increases from bottom to top
-lip at the top for pouring
-wide bases and rings at the top to protect them from spilling or breaking
Buret - Correct Answer --long tube that is clamped in place
-useful when liquids are to be dispensed slowly or drowse
-used to make solutions and to perform titrations
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