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Monday, May 16 th : “A” Day Tuesday, May 17 th : “B” Day Agenda

Monday, May 16 th : “A” Day Tuesday, May 17 th : “B” Day Agenda. Chapter 7 Review – go over Chapter 7 Jeopardy Review Homework: Chapter 7 Crossword Puzzle Next time: Crossword puzzle due Chapter 7 Test. Jeopardy Teams 2B. Team #1: Brandon, Colin, Andrew, Taylor, Brock

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Monday, May 16 th : “A” Day Tuesday, May 17 th : “B” Day Agenda

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  1. Monday, May 16th: “A” DayTuesday, May 17th: “B” DayAgenda • Chapter 7 Review – go over • Chapter 7 Jeopardy Review • Homework: • Chapter 7 Crossword Puzzle Next time: • Crossword puzzle due • Chapter 7 Test

  2. Jeopardy Teams2B • Team #1: Brandon, Colin, Andrew, Taylor, Brock • Team #2: Lexi, Kate, Bill, Meghan, Hallah • Team #3: Alisha, Hannah, Casey, Rowdy, Sean • Team #4: Stephanie, Calvin, Avery, Janae, Aaron • Team #5: Tabitha, Mark, Alyssa, Erin

  3. Chapter 7 “The Mole & Chemical Composition”

  4. THE RULES: • There will be 5 teams • Mrs. Elfline’s decisions are final – that means no whining! • Each member of the winning team will receive $1 mole money

  5. And now…here is the host of Jeopardy… Mrs. Elfline (Chem teacher of awesomeness)

  6. Let’s Get Ready to play… Today’s Categories are:

  7. Definitions

  8. This ‘n That

  9. Calculations

  10. Calculations

  11. Talk To Me

  12. Definitions This ‘n That Calculations Calculations Talk To Me $100 $100 $100 $100 $100 FJ $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500

  13. The number of atoms in 1 mole of any pure substance Answer…

  14. Avogadro’s NumberOR6.022 X 10 23 100

  15. The unit for molar mass Answer…

  16. g/moleORgrams per mole 200

  17. What 2 things does a chemical formula tell you? Answer…

  18. 1. What elements are in a compound2. How many atoms of each element are in a compound 300

  19. A formula that shows the simplest whole-number ratio of the atoms in a compound Answer…

  20. Empirical Formula 400

  21. What are isotopes? Answer…

  22. Atoms of the same element that have different number of neutrons. 500

  23. Which has more atoms: 1 mole of gold or 1 mole of silver? Answer…

  24. They both have the same number of atoms, 6.022 X 10 23 100

  25. How many hydrogen atoms are present in 1 mole of ammonium hydrogen phosphate, (NH4)2HPO4? Answer…

  26. 9 200

  27. To find the molecular formula from the empirical formula, you need to calculate… Answer…

  28. The Molar Mass of the Empirical Formula 300

  29. As the atomic masses of the elements in the periodic table decreases, the number of atoms in one mole of the element… Answer…

  30. Stays the same1 mole = 6.022 X 10 23 atoms of ANY element 400

  31. If a compound has a molecular formula of X2Y6, what is it’s empirical formula? Answer…

  32. XY3 500

  33. How many atoms are present in 2.5 moles of aluminum, Al? Answer…

  34. 1.5 X 10 24 atoms Al 100

  35. How many moles of gold are present in 150.0 grams of Au? Answer…

  36. .76 moles Au 200

  37. A compounds empirical formula is BH3. If the molar mass is 27.67 g/mole, what is the molecular formula? Answer…

  38. B2H6 300

  39. What is the percentage composition of HCl? Answer…

  40. 2.77 % Hydrogen97.23 % Chlorine 400

  41. Calculate the molar mass of calcium nitrate, Ca(NO3)2. Answer…

  42. 164.1 g/mole 500

  43. Calculate the molar mass of titanium dioxide, TiO2. Answer…

  44. 79.87 g/mole 100

  45. What is the mass (in grams) of 5.6 moles of sodium, Na? Answer…

  46. 128.8 grams Na 200

  47. Calculate the average atomic mass of rubidium if 72.17% of its atoms have a mass of 84.91 amu and 27.83% of its atoms have a mass of 86.91 amu. Answer…

  48. 85.47 amu 300

  49. What is the percentage composition of quartz, SiO2? Answer…

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