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Personal Protective Equipment
Location & Function of:
Serological and Pasteur pipets
Washing Glassware:
Numerical Data
Universal Hazard Label
Erlenmeyer Flasks
Graduated Cylinders
motorized pipet pump
tri-valve pipet
manual pipet pump
Pipet Pumps
Autoclave
Disposable Plastic Pipets
Reagent Bottles
Micropipets
Electric Scales
Weigh Boats
Burettes
Labeling
Scientific Notation
Significant Figures
Rule 1: The number of significant figures is the number of digits to the right of the first non-zero number.
Rule 2: When adding or subtracting numbers, the resulting numbers cannot have any more significant figures to the right of the decimal point than any value used in the calculation.
Rule 3: When multiplying or dividing numbers, the answer cannot have any more significant figures than the value in the calculation with the fewest significant figures.
Mass per Volume (m/v)
Preparing Solutions
A Stock Solution is a concentrated solution that will be diluted to some lower concentrated for actual use. Stock solutions are used to save preparation time, conserve materials, reduce storage space, and improve the accuracy with which working lower concentration solutions are prepared.
Dilutions
Volume per Volume (v/v)