Lab Equipment Flashcards
What would be the best choice of equipment to measure 37 mL of water? Why this tool?
Graduated cylinder. Because it measures the water exactly; it has more ticks on the glass.
What second choice of equipment could you use to measure 37 mL of water? Why is this not the best choice?
A beaker. It is not the best choice because it does not have any ticks on the glass; it measures things by 5’s and 10’s.
When measuring liquid in a graduated cylinder, when looking at the top of water from the side, what is happening? What is this called and what is the solution for this?
The top of the water is curved. This is called a meniscus. You have to measure the water by the bottom of the meniscus, not the top.
What could best hold 40 mL of hot water? What is this tool made out of?
A beaker could hold the water best. It is made out of glass.
What should you do if you accidentally drop a piece of glass equipment?
Tell the teacher immediately and make sure to not touch it.
What else from the equipment list would be needed to boil 40 mL of water?
Tongs would be needed to boil 40 mL of water.
What is needed to drop small quantities of liquids into test tubes?
A pipette is needed.
What could be used to hold a test tube over a Bunsen Burner for heating? What two safety precautions do you need to follow while completely this task?
A Test Tube Clamp.
1. Wear Goggles
2. Keep hair back, don’t wear baggy clothing
What protects your eyes from splattering solids and splashing liquids?
Goggles
Goggles protect your _____, but not your _____.
Eyes, Face/hands
What is used to rinse out glassware with distilled water?
A water bottle.
What is used to heat solutions to drive off water ( to make all water evaporate )
The evaporating dish.
What is used to swirl a volume of liquid?
An Erlenmeyer Flask
How is an Erlenmeyer Flask different from a beaker that makes it ideal for swirling?
The neck is tapered; smaller from the body of the beaker.
What holds small volumes of liquids and observes chemicals inside? Where should you place your tool in?
A test tube. You should place this in a test tube rack
