Safety Rules
When heating a piece of glass and wanting to pick it up, which is the best to use?
paper towel, your hand, gloves
gloves
of, relating to, or causing death; deadly; fatal.
lethal
A device used to measure the mass (in grams) of an object with high precision.
electronic balance
capable of catching fire and burning; inflammable.
combustible
Give two scenarios where using a bunsen burner is the better option over using a hot plate.
- need high temperatures
- need a direct flame
- need to heat something quickly
1. Personal eyewear is not sufficient PPE for the lab.
2. Cracked glass is okay to use as long as it is minimal.
3. All chemicals in the lab are to be considered hazardous.
2. Cracked glass is okay to use as long as it is minimal.
DAILY DOUBLE
having the quality of corroding or eating away; erosive.
Corrosive
This piece of lab equipment is used for controlled, even heating at lower temperatures, especially with flat-bottomed containers and heat-sensitive materials.
hot plate
When handling chemicals that emit fumes, what safety equipment must be used to avoid inhalation?
fume hood
What color does hot glassware turn when hot?
it doesnt change color!
to provide with fresh air in place of air that has been used or contaminated.
ventilate
A tall, narrow container with markings to measure the volume of liquids.
graduated cylinder
What is a small, curved spatula used primarily to transfer solid chemicals called?
scoopula
If you want to dilute an acid, in what order should you combine the contents?
always pour acid into water
evaporating rapidly; passing off readily in the form of vapor.
volatile
Cylindrical container with a flat bottom used for stirring, mixing, and heating liquids.
beaker
During a lab, you need to rinse out a test tube.
This means you need something that is capable of dispensing a small quantity of distilled water.
What is the best piece of equipment to use?
wash bottle
After completing a lab, all chemical waste should be ...
a) dumped down the sink
b) put back into container
c) disposed of according to teachers instructions
d) left on table for next class
disposed of according to teachers instructions
capable of burning, corroding, or destroying living tissue.
Caustic
A type of laboratory glassware with a conical base and a cylindrical neck. It is used for mixing, heating, and storing liquids.
Erlenmeyer flask
meniscus