Gen Bio 1 lab review (LAB 1 - LAB SAFETY)

Where can a chemical's SDS be found? Select all that apply.

Free on the eScience Labs website and its free online

Fire extinguisher

Puts out small or medium fires

Neutralization reaction

a chemical reaction in which an acid and a base interact with the formation of a salt

What is the correct way to dilute acid?

acid should always be added to the water

#5 (how to respond to accidents)

burns: flush the area with cool running water for 20 minutes

How to respond to accidents #1

chemical spills on a person: if a large spill, remove contaminated clothes while person is under a safety shower or home shower; if small, flush area with large amount of water and wash it with soap

#3 (how to respond to accidents)

chemical spills on bench or floor: clean up the spill immediately

#6 (how to respond to accidents)

cuts and wounds: if chemical gets into a cut or wound, rinse it off immediately with large amounts of water

Rule #2 (lab clean up and disposal)

dispose all chemical wastes properly

Gloves should be worn at all items during an experiment, including when using your computer to take notes

false

If a chemical splashes onto your face, the first thing you should do is remove your safety glasses

false

#7 (how to respond to accidents)

fires: extinguish fires by covering the mouth of beakers; gets on clothes, STOP, DROP, and ROLL or get into safety shower

Suppose you splash a chemical into your eyes. You immediately flush your eyes in an eye wash for a minute until your eyes feel better. What should you have done?

flushed your eyes for at least 20 minutes

#2 (how to respond to accidents)

if chemical splashed onto your eyes or face, go to the nearest sink, wash your face, and flush your eyes for 20 minutes

#4 (how to respond to accidents)

ingestion of chemicals: call 911 or poison control at 1-800-222-1222

PPE (personal protective equipment)

items that, when worn by a scientist or student, greatly reduce the risk of suffering injury or damage from chemicals during an experiment; also prevents from experiments from being contaminated

Acids and bases

measured using pH, or potential hydrogen; calculated using a mathematical equation that accounts for some of the chemical differences in acidic and basic compounds; ranges from 1-14 to measure if a substance's pH is acidic or basic (1 = highly acidic, 14 = highly basic, 7 = neutral)

Lab coats/aprons

prevents chemicals from getting on your clothes

Gloves

protect your hands from harmful chemicals or hot objects; also keep your workspace from being contaminated

Laboratory fume hood

removes harmful gasses and fumes that are sometimes present when doing an experiment

Lab clean up and and disposal rule #1

thoroughly wash all lab ware between experiments

What actions should you take if you accidentally break an empty test tube during an experiment? Select all that apply

use a hand broom and dustpan to sweep up the glass, dispose of the glass in a protective container then place it in the trash can

Eyewash

used if a harmful chemical splashes into your eyes or on your face

Safety Goggles/Glasses

used to protect eyes and should be worn at all times while doing experiments, even if you are not actively working with chemicals

Safety shower

used when a hazardous chemical is spilled on a person and they are unable to rinse it off thoroughly in a sink; also used if a person's clothes catches on fire

You need to dilute sulfuric acid for an experiment. To do this, you put on gloves and goggles and pour water into the acid to dilute it to the proper concentration. You then close the bottle and position it out of the way so that it does not get knocked over. What have you done wrong?

water should not be poured into an acid

Rule #3 (lab clean up and disposal)

when finished, wash your hands with soap and water; clean all work surfaces with detergent and wipe them dry

Rule #10

when pouring a chemical, always hold the lid of the chemical bottle between your fingers, never lay the lid down on a surface as this could contaminate the chemical supply, and hold containers away from your body while pouring

Rule #4

4) never remove chemicals or other materials from the lab area

Rule #5

5) always read the labels twice

Rule #6

6) never place chemicals in unmarked containers

Rule #7

7) never return unused chemicals to their original container to avoid contamination

Rule #8

8) always put lid back onto a chemical container immediately after use to avoid contamination

Rule #9

9) do not interchange lids between chemical bottles

Which of the following information is not included on an SDS?

Experiment procedures

Working with chemicals rule #1

1) all chemicals should be considered hazardous 15) wipe up any chemical spills immediately

Proper lab attire

1) always wear safety glasses, gloves, and aprons provided in PPE safety kit 2) do not wear soft contact lenses while conducting experiments; contact lenses can absorb potentially harmful chemicals 3) pull back and secure long hair; including long facial hair 4) do not eat, drink, chew gum, apply cosmetics, or smoke while conducting experiments 5) remove all jewelry 6) remove all loose clothing 7) always wear closed toe shoes

General lab safety rules

1) conduct yourself in a responsible manner at all times in the area you will be performing the lab work 2) follow all written instructions carefully 3) do not use any lab equipment as containers for food or beverages 4) perform only those experiments issued in your eScience labs kit; unauthorized experiments = prohibited 5) read all procedures thoroughly before starting experiments 6) observe good house keeping practices: keep work area clean and tidy 7) know the location of and how to use the safety equipment in your home 8) always work in well-ventilated areas 9) be alert and proceed with caution at all times in the experimenting area 10) never point a test tube or any vessel that you are heating at yourself or anyone else, as it may explode 11) do not "shake down" thermometers or use it as a stir rod; they break easily 12) labels, equipment instructions should be read carefully before use 13) experiments must be monitored at all times

Rule #11

11) use test caps or stoppers to cover test tubes when shaking or mixing

Rule #12

12) when diluting an acid, always pour the acid into the water

Rule #13

13) handle flammable hazardous liquids over a pan to contain spills

Rule #14

14) avoid prolonged exposure of chemicals to direct sunlight or heat sources

Rule #15

15) wipe up any chemical spills immediately

Rule #2

2) never smell or ingest chemicals

Rule #3

3) never pipette anything into your mouth