Preview

lab 1

Good Essays
Open Document
Open Document
2921 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
lab 1
Laboratory Techniques and Measurements
(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




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

Qty
1
1
1
1
1

LabPaq provides

Auxiliary Supplies BagCK1

© Hands On Labs, Inc.

1
1
1
1
1
1
1
1
1
1
1

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

2

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).

You May Also Find These Documents Helpful

  • Satisfactory Essays

    lab 4

    • 451 Words
    • 2 Pages

    Compare the portions that address Internet and e-mail access of at least three different companies.…

    • 451 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Lab 2

    • 310 Words
    • 2 Pages

    Question 1: What is the name of the computer you are working from? The Name of the computer is W2K8xx…

    • 310 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Lab 1 1

    • 814 Words
    • 9 Pages

    Using the example in Figure 1-5 and the steps that followed, create a binary conversion for the decimal value 200.…

    • 814 Words
    • 9 Pages
    Satisfactory Essays
  • Good Essays

    Lab 5

    • 2594 Words
    • 10 Pages

    In gymnosperms, pollination is the transfer of pollen (Fig. 2) from male cones (where pollen is produced) to female cones, which house eggs. In these plants, pollen is carried from male cones to female cones by wind - gymnosperms were the first plants to evolve that did not need free water to transfer sperm to egg, and were therefore able to thrive in terrestrial habitats. Pollen grains are also protected by tough coats. After fertilization, seeds are produced with developing embryos…

    • 2594 Words
    • 10 Pages
    Good Essays
  • Satisfactory Essays

    Lab 3

    • 789 Words
    • 4 Pages

    To predict caloric expenditure you can plug in a measured heart rate and calculate the predicted VO2 (L/min). Then using the predicted VO2 and an estimated thermal equivalent (4.825 kcal/LO2), you can estimate the caloric expenditure. Nonetheless, each individual’s heart rate varies. These can be attributed to gender differences, physical activity and physical training. So, if the person is of the same gender and is as healthy as you are and does the same amount of exercise then it could be possible to use their regression line to estimate your own caloric expenditure however the limitations would be possibly the difference in size of the lungs for the estimation of VO2 max. Weight would be important, as it is required to calculate the predicted caloric expenditure. However if your weight can be misleading because one can simply weigh more because they are taller, not because they are bigger. Height does not play such an important role. When you are taller, your body does need to pump more blood throughout the body. This means that they will pump more blood per beat but not that they would have a higher heart rate. It is important to remember that a linear relationship exists between…

    • 789 Words
    • 4 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Lab 4

    • 342 Words
    • 2 Pages

    6. Which tool and application were used to exploit the identified vulnerability on the targeted Microsoft 2003 XP SP2 Workstation?…

    • 342 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Lab 1

    • 567 Words
    • 3 Pages

    Attacker would avoid detection by covering tracks step of the hacking process where they cover up their tracks in the system they hacked into.…

    • 567 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Lab 2

    • 639 Words
    • 2 Pages

    with varying amounts of data. In order for scanners to detect this type of virus,…

    • 639 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    lab 2

    • 398 Words
    • 2 Pages

    1. Compare the hash values calculated for example.txt that you documented during this lab. Explain in your own words why the hash values will change when the data is modified.…

    • 398 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Lab 4

    • 575 Words
    • 3 Pages

    1.List four cell structures that were common to both plant and animal cells. (4 points)…

    • 575 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Lab 1

    • 414 Words
    • 2 Pages

    4. Why would you use a tool like DevManView while performing a computer forensic investigation?…

    • 414 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    Lab 2

    • 588 Words
    • 3 Pages

    The purpose of the experiment is to examine the effects of chocolate milk on performance physiology and fitness. It has been hypothesized that chocolate milk is a more efficient way to replenish energy stores due to its impact on the “muscle protein fractional synthetic rate, where signaling molecules” of the skeletal muscle trigger protein turnover enabling the individual to perform more efficiently; opposed to energy drinks and water.…

    • 588 Words
    • 3 Pages
    Better Essays
  • Satisfactory Essays

    PURPOSE: The purpose of this experiment is for the students to get a better knowledge with the laboratory tools and techniques. This experiment taught me how to convert between SI units and standard American units of mass, length, temperature, volume and time as well as how to measure the units. Students become proficient in laboratory techniques such as measuring temperature and volume and calculating within them.…

    • 1411 Words
    • 11 Pages
    Satisfactory Essays
  • Good Essays

    lab 2

    • 1105 Words
    • 5 Pages

    Fluid motion that resulted by force over the surface by an external source, such as fans or pumps. Small movement of air is generated which limits the heat transfer rate from the hotter surface to the surrounding air. Therefore, more heat is transferred when the fluid velocity is increased over the heated surface.…

    • 1105 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    LAB THREE

    • 556 Words
    • 3 Pages

    Two memory channels for communications with DDR3 SDRAM. The clock speed of the memory that is supported will depend on the processor.…

    • 556 Words
    • 3 Pages
    Satisfactory Essays