1 / 16

Today

Today. You will need a calculator! Go get it. Counting Atoms. What are some ways that we make it easier to count groups of things?. Atoms and molecules are tiny. Counting groups is a pain in the back.

kaelem
Télécharger la présentation

Today

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. Today You will need a calculator! Go get it

  2. Counting Atoms

  3. What are some ways that we make it easier to count groups of things?

  4. Atoms and molecules are tiny... • Counting groups is a pain in the back. • 18 grams of water contain 602 000 000 000 000 000 000 000 molecules (more or less...) • How can we make this easier?

  5. 1 mole = 6.023 x 1023 items

  6. We still don’t want to count the things! • The mass of one mole is the MOLAR MASS • 1 mole of iron = 602 000 000 000 000 000 000 000 atoms = 55.85 grams

  7. Posters around the room... • Lists of Elements and Compounds, with their Molar Mass • I did NOT give any hint as to how I found the molar mass. • You know how to look up mass on the periodic table for each atom. • You have 5 minutes to look at the posters and figure out what you would need to do.

  8. Oxygen O2 32.00 grams/mole

  9. Water H2O 18.02 grams/mole

  10. Calcium chloride CaCl2 110.98 grams/mole

  11. Sodium chloride NaCl 58.44 grams/mole

  12. Fluorine gas F2 38.00 grams/mole

  13. Sulfur S8 256.56 grams/mole

  14. Baking Soda NaHCO3 56.54 grams/mole

  15. Potassium permanganate KMnO4 158.04 grams/mole

  16. It seemed that...

More Related