Chem Lab Prelims Flashcards
(32 cards)
Reaction time of chemicals through eye contact
10 seconds
Most appropriate absorptive material for spilled flammable liquid
Charcoal
MSDS
Material safely data sheet
A document that gives comprehensive information about chemical
Material safely data sheet
Appropriate laboratory attire
- Wear proper personal protective equipment (PPE).
- Do not wear shorts, leggings, or miniskirts.
- Do not wear high-heeled shoes, open-toed shoes, sandals, or shoes made of woven materials.
- Confine long hair and loose clothing.
GHS
Global harmonized system of classification and labeling chemicals
A standard assigned to a hazard class and category to describe the nature and serving of a chemical hazard
GHS
In fire extinguishers, PASS means
P- pull the locking pin
A- aim for the base of the fire
S- squeeze and hold the discharge lever
S- sweep from side to side
Prerequisite for fire
Fire, oxygen, fuel
Fire safety: ordinary combustion
Class A
Fire safety: flammable liquid
Class B
Fire safety: Electrical Equipment
Fire safety: Class C
Fire safety: Combustible Metals
Class D
Fire safety: Kitchen Fire
Class K
Fire safety: dry chemicals
Class ABC
Fire safety: aqueous film form foam
Water based Class A and B only
Fire safety: carbon dioxide
Class B
Fire safety: water
Class AB
Can be use in cleaning non polar chemicals
Acetone
Needed when in drastic cleaning
Chromatic acid
Transfer accurate volume of liquid
Transfer pipet
Most accurate type of pipet
Volumetric pipet
Volumetric pipets are more accurate than the serological pipet
True
A precisely manufactured glass tube with graduation, enabling the measurement of liquid delivered through the bottom
Burets
