Lab Safety T/F

When diluting acid, you should always add water to acid, in that order

False, add acid to water, so if it splashes, the majority will be water.

Burners can be left unattended as long as the flame is yellow.

False, fire is fire. It is to easy for it to be knocked over and start a fire in the lab.

If a beaker is cracked, it is okay to heat it as long as it is not leaking.

False, heat will make crack bigger.

Its okay to aim a heated test tube toward your face so that you can smell it better.

False, if needed to smell, one would waft it to there face.

It's okay to work in a lab alone.

False, it is very dangerous, and it's always nice to have someone checking over your work.

If there is an accident in the lab, the first thing you should do is go to the phone and dial 9-1-1

False, take other precautions apprioprate to the situation

Applying makeup is allowed in the lab, but you should never eat or drink in the lab.

False, you should never put on makeup in the lab.

All liquids may be placed on sink for disposal.

False. Only water.

It is okay to leave broken glass on the floor as long as it is not on the lab tabletop as well.

False. Should be picked up and put in a special container if it used to have hazardous substances. People don't want to step on that.

If someone has a corrosive chemical splash in his/her eye, he/she should stay in the eyewash for 10-15 minutes.

True, also should go until ambulance arrives

Be sure that gas is shut off to your Bunsen burner when you leave the lab.

True, gas would fill the room making it a fire hazard. Not to mention the smell

Excess reagents are never to be returned to stock bottles.

True, one out of stock bottle, it changes because of air.

Beware of hot glass - it looks exactly like cold glass

True, use tongs

Broken glass and biowaste are disposed of in special containers for broken glass and biowaste, not in general waste cans.

True. Chemicals may spread to other places if not properly disposed of.

Consider all chemicals to be hazardous unless you are instructed otherwise.

True. Take all precautions