1 / 16

Laboratory Equipment

Laboratory Equipment. The tools you use to increase your understanding. Beakers. Used for Pouring, storing, mixing, heating, dispensing NOT used to measure Has a “beak” to aid pouring. Test Tube. Used for storing, mixing, heating NOT for measuring Should be held with tongs, clamps

nansen
Télécharger la présentation

Laboratory Equipment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Laboratory Equipment The tools you use to increase your understanding

  2. Beakers • Used for • Pouring, storing, mixing, heating, dispensing • NOT used to measure • Has a “beak” to aid pouring

  3. Test Tube • Used for storing, mixing, heating • NOT for measuring • Should be held with tongs, clamps or a ring-stand clamp NEVER with your hands

  4. Flask • No beak • Used for storing, heating, etc. • Not for measuring • Many different shapes • Should not be held by hands

  5. Graduated Cylinder • Used to measure liquids • Not for reactions • Read from the curve of the meniscus

  6. Meniscus Curved shape of a liquid stored in a cylinder Caused by: adhesion between the liquid and its container cohesion between particles of the liquid

  7. Bunsen Burner • Turn on gas FIRST • Control gas and air to create a nice blue cone of flame • NEVER put glassware into the flame, as the glass will weaken and then melt

  8. Ring Stand w/ Clamp • Used as a steady base • Many different clamps and instruments will attach to the stand

  9. Triple-Beam Balance

  10. Triple-Beam Balance • Used to measure mass • Moving the weight farther from the pan increases the leverage • Be sure to zero the balance for each mass • Use paper to keep materials from sticking to the balance pan

  11. Which is best for measuring liquids? • Beaker • Graduated Cylinder • Flask • Crucible

  12. What is this? • Graduated Cylinder • Beaker • Triple-beam Balance • Test Tube

  13. What is this NOT used for? • Heating • Measuring • Pouring • Storing

  14. What is this? • Graduated Cylinder • Funnel • Triple-beam Balance • Test Tube

  15. What should you do to a triple-beam balance before weighing a substance? • Use new paper • Zero the balance • Move all weights to zero • All of the above

  16. What is this effect called? • Meniscus • Musculum • Mensa • Mosca Quito

More Related