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Unit 7 Day 1: Mole Mountain

In this lesson, students will learn about the concept of mole and how to perform stoichiometric conversions between grams, moles, and particles of a substance. The lesson includes guided instruction, conversion factors, and setting up conversion problems.

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Unit 7 Day 1: Mole Mountain

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  1. Unit 7 Day 1: Mole Mountain

  2. DCQ- Thursday, April 4 Answer on notebook paper! Get out a calculator! • What is the density of an object if its volume is 978 mL and the mass is 23.5 g? • 87,045 g = __________ kg? • How many sig figs are in 789,050?

  3. DCQ Answers D= 0.0235 g/mL • What is the density of an object if its volume is 978 mL and the mass is 23.5 g? • 87,045 g = __________ kg? • How many sig figs are in 789,050? 87.045 5 sig figs

  4. OBJECTIVES • I can perform stoichiometric conversions between grams, moles, and particles of a substance. • CHEM1.PS1.3

  5. Guided Instruction: Mole Mountain *Write the topic at the top of your page!*

  6. A. Unit • A specific quantity that can be measured and is always the same • Examples: • 1 mile • 1 second • Dozen

  7. B. Conversion Factor • Fraction that lets you convert between units • It always equals one! • Ex. 1 dozen eggs or 12 eggs 12 eggs 1 dozen eggs • Ex. 1 day or 24 hours 24 hours 1 day

  8. C. Mole • A mole is a unit of matter • 1 mole = 6.02 x 1023 (Avogadro’s number) • 1 MOLE of anything has…602,000,000,000,000,000,000,000 items!!! • A mole is like a dozen • 1 dozen eggs = 12 eggs • 1 mole of eggs = 6.02 x 1023 eggs

  9. Why do scientists use the mole? • Particles (atoms and molecules) are very very very small…it’s impossible to individually count atoms! • So scientists need to be able to count substances using larger terms • Example: A doctor needs to give a patient Penicillin. • Is it easier to give the patient .003 moles of the drug, or 18,006,000,000,000,000,000,000 molecules of the drug?

  10. D. Mole Mountain • Map to help convert between units Mole Particles Atoms Molecules Grams

  11. E. Setting Up Conversion Problems • Write the given unit (The one you HAVE) • Check mole mtn to see how many steps • Write x ___________ (for each step) • Put the starting (given) unit on the bottom • This is where you are on Mole Mtn • Put the unit you want on the top • This is where you are going on Mole Mtn Ex: Convert from grams to moles: Moles Grams x Grams

  12. In Summary… • After your notes, write the following heading and answer the questions in complete sentences : Summary • What was the main idea of today’s lesson? • What are three things that you learned? • What is one area you struggled with?

  13. Independent Practice • Complete the problems on your worksheet ON YOUR OWN! • If you have a question… • Look at your beautiful notes • Ask a peer for a clarification or explanation (you won’t learn if you just copy answers!) • Raise your hand and I’ll come by! (But only if you’ve done 1 and 2 first! )

  14. Exit Ticket – Voice/Verify Once your exit slip is graded, write your mastery score on your exit ticket. -> 1/5 = 20% -> 2/5 = 40% -> 3/5 = 60% -> 4/5 = 80% -> 5/5 = 100%

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