1 / 6

The Mole Concept

The Mole Concept. What is a mole? Furry animal that lives underground Freckle with hair coming out of it Concept of quantity used in chemistry All of the above. Quantities of numbers :. 2 = pair 12 = dozen 144 = gross 500 = ream 6.02 x 10 23 = mole

hung
Download Presentation

The Mole Concept

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. The Mole Concept What is a mole? • Furry animal that lives underground • Freckle with hair coming out of it • Concept of quantity used in chemistry • All of the above

  2. Quantities of numbers: 2 = pair 12 = dozen 144 = gross 500 = ream 6.02 x 10 23 = mole The mole is a number unique to chemistry. It represents a specific quantity of chemical that is involved in a chemical reaction.

  3. Example: How long (in years) would it take to count to 1 mole, if you could count 5 atoms per second? • Example: If you had 1 mole of dollars and could spend 1 million dollars every second until the mole was spent, how long (in years) would the money last?

  4. We can’t measure a mole by counting! We must use a reference point of: 12 g of carbon = 1 mole Experimentally the number 6.02 x 1023 atoms is equivalent to 12 g of carbon based on its atomic size and density of the atoms. • This is based on the same idea that 1 dollar = 100 pennies

  5. Example: How many schloofs are in 5 wiggins? If: 1 yipper = 5 zonks, 1 zonk = 7 astra, 1 astra = 2 wiggins, 4 schloofs = 1 yipper

  6. Molecular Mass & Molar Mass The mass of 1 mole of any atom on the Periodic Table is equal to its Atomic Mass Number. Ex. 1 mole gold = 196.97 g = 6.02 x 1023 atoms Ex. 1 mole of water (H2O) = 18.02 g (1.01 x 2 + 16.00) = 6.02 x 1023 molecules

More Related