MODULE 1: FAMILIARIZATION OF LABORATORY APPARATUS AND SAFETY PRECAUTIONARY MEASURES Flashcards
a flat-bottomed cylindrical container, usually with a pouring lip, to measure, mix, and prepare liquids.
Beaker
a hollow cylinder of thin glass with one end closed, used for experiments in labs.
Test Tube
This is 6.25 inches long with finger grips. Holds any size test tube.
Test Tube Holder or clamp
used to hold test tubes when they are hot and untouchable.
Test Tube Holder
This test tube holder is also known as
clamp
test tube holder is how many inches long?
6.25 inches long
A plastic holder used to hold test tubes or dry them.
Test Tube Rack
a bottle, usually of glass, having a rounded body and a narrow neck, used especially in laboratory experimentation.
Erlenmeyer Flask
a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids.
Graduated Cylinder
an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye.
Microscope
lens that produces an enlarged image of an object.
Magnifying Glass
A glass or plastic rectangular slide that is used for specimens to be looked at under a microscope.
Microscope Slide
used to place over the specimen on the Microscope Slide. This holds it in place.
Cover Slip
a slender graduated tube used in a laboratory for measuring and transferring quantities of liquids from one container to another.
Dropper
are a common laboratory tool used to transport measured volumes of liquid and come in a multitude of channels, displacements and construction materials.
PIPETTE
What are the 2 types of pipettes?
- serological
- micropipette
a type of gas burner, commonly used in chemical laboratories, with which a very hot, practically nonluminous flame is obtained by allowing air to enter at the base and mix with the gas.
Bunsen Burner
A glass, cylindrical-like stick that is used to mix solutions in a beaker.
Glass Stirring Rod
A glass stirring rod is also called a what?
Also referred to as a “Swizzle Stick”
is used to read the mass of items
Triple Beam Balance
What are the three beams of a triple beam balance?
- 100 gram increments
- 10 gram increments
- 1 gram increments
How is a triple beam balance used?
First make sure to calibrate the scale so that it reads zero when nothing is placed on the pan, with all weight to the left.
First make sure to calibrate the scale so that it reads zero when nothing is placed on the pan, with all weight to the right
True or false
all weight to the LEFT
FALSE
is an instrument that measures the amount of photons (the intensity of light) absorbed after it passes through sample solution
SPECTROPHOTOMETER
A spectrophotometer is an instrument that measures WHAT?
measures the amount of photons (the intensity of light) absorbed
With the spectrophotometer, the amount of a known chemical substance (concentrations) can also be determined by measuring the WHAT?
by measuring the intensity of light detected.
It separates the liquid and solid portion of a solution.
CENTRIFUGE
any device that applies a sustained centrifugal force—that is, a force due to rotation.
CENTRIFUGE
Centrifuge, any device that applies a sustained centrifugal force—that is, a force due to WHAT?
rotation
is a flat surfaced device used for controlled the heating directly or using the hot plate to create a heat bath.
HOT PLATE
In the lab, a hot plate can be more useful than a Bunsen burner
True or false
TRUE
In the lab, why is a hot plate can be more useful than a Bunsen burner ?
because the hot plate has the option of heating the substance slow as opposed to a rapid open flame heat source.
