1 / 11

Catalyst

Catalyst. Write a paragraph (at least 5 sentences) answering at least 1 of the following questions: How do you use chemicals in your daily life? When you hear the words “chemical reaction” what do you think of? HW Due Today: Read textbook pp. 230, 236-240 pp. 233 #6(b, c, d), 7(c), 8(b)

decima
Download Presentation

Catalyst

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. Catalyst Write a paragraph (at least 5 sentences) answering at least 1 of the following questions: How do you use chemicals in your daily life? When you hear the words “chemical reaction” what do you think of? • HW Due Today: Read textbook pp. 230, 236-240 • pp. 233 #6(b, c, d), 7(c), 8(b) • Valence electron review worksheet! • Tonight’s HW: Study for Unit 2 Exam.

  2. Lesson Objective I can explain what the different kinds of chemical bonds are and how they are formed.

  3. Agenda • Catalyst • HW Review • Unit 2 Stations • Exit Slip

  4. HW: pp.233 #6(b, c, d), 7(c), 8(b) 6 – converting moles to particles – conversion factor is 6.022 x 1023 particles 1.00 mole 6(b) Answer: 2.7 x 1024 molecules BCl3 6(c) Answer: 1.5 x 1023 ions K+ 6(d) Answer: 3.626 x 1024 molecules O2 7(c) Answer: 3.08 x 1024 Na+ ions 8(b) convert atoms to moles – Answer: 0.1661 mol C

  5. What is the mole? (Notes) • A mole is the number of atoms in 12 grams of carbon-12. • There are 6.022 x 1023 atoms in 12 grams of carbon-12. • 1 mole (mol) = 6.022 x 1023 particles.

  6. 1 mole (mol) = 6.02 x 1023 This number is a constant. The number of particles in 1 mole is called Avogadro’s Number!

  7. 6.02 x 1023 Avocado Avogadro

  8. Review- The mole - MEMORIZE • 1 mole = 6.02 x 1023 particles • 6.02 x 1023 is called Avogadro’s number • The periodic table is based on the molar mass of carbon (C)

  9. Stations! Instructions • There are 8 stations. There are 2 stations per table. • Groups of 3 or 4. • Begin at the station closest to your seat. • The directions are at your station. • Show all your work on a separate sheet of paper. Label your paper with the station number. • I will collect your work at the end of class.

  10. Exit Slip • Draw the Lewis Dot structure for the molecule: HBr • How many molecules of HBr are in 2.00 mole of HBr? • Which has more atoms: A mole Platinum or a mole of tin?

  11. Random Mole Facts! • Since the Earth has a radius of about 6400 km, its volume is approximately 1021 m3. Since about 500 large grapefruit will fit in one cubic meter, it therefore follows that a mole of grapefruit would have approximately the same volume as the Earth. •  If you had exactly one mole of sheets of paper, you could make one million equal stacks from sea level on the earth that would pass the sun.  • If you had a mole of pennies, you could give out enough money to everyone in the world so that they could spend a million dollars every hour, day and night, for the rest of their lives.

More Related