(adapted from Labpaq Version 09.1.06 by Peter Jeschofnig, Ph.D.)
Experiment Summary
You will have the opportunity to learn how to conduct measurements in mass, volume, and density using scales and common laboratory equipment.
Review the safety materials and wear goggles when working with chemicals. Read the entire exercise before you begin. Take time to organize the materials you will need and set aside a safe workspace in which to complete the exercise.
Objectives
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Become familiar with several important laboratory techniques.
Gain proficiency with some of the common measuring devices used in a chemistry laboratory.
Determine the volume, mass, and density of objects and liquids.
Time Allocation: Allow 2 hours for this experiment
Materials
Materials
Student provides
Label or Box/Bag
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LabPaq provides
Auxiliary Supplies BagCK1
© Hands On Labs, Inc.
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LabPaq CK-1
Item Description
Table salt
Piece of string
Isopropyl (rubbing) alcohol
Tap water
Paper, 5 cm x 5 cm for weighing chemicals Beaker, 100 mL, glass
Cylinder, 25 mL
25-mL volumetric flask
Pipet, Serological-2mL
Bulb, Rubber
Goggles-Safety
Scale-Digital-500g
Test Tube (1), 13 x 100 mm
Bolt, Metal – Small
Magnet bar
Pipet, Empty Short Stem
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Discussion and Review
In this experiment you will learn the techniques for using several pieces of laboratory equipment and become familiar with the units of measurement most frequently used in laboratory work. The metric system, which includes meters, liters, Celsius, and grams, is the most common set of measurements used in science.
The International System of Units or SI from the French
Système international d'unités is a modern form of the metric system based on units of ten. This system has been adopted throughout the world with the exception of the United States,
Liberia, and Burma (Myanmar).