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JEOPARDY!

JEOPARDY!. Click Once to Begin. Chemistry Final Review. JEOPARDY!. Avogadro’s Number. Mole Conversions. Empirical Formulas. Stoichiometry 1. Stoichiometry 2. Misc. 100. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 300. 400. 400. 400.

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JEOPARDY!

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  1. JEOPARDY! Click Once to Begin Chemistry Final Review

  2. JEOPARDY! Avogadro’s Number Mole Conversions Empirical Formulas Stoichiometry 1 Stoichiometry2 Misc. 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500

  3. What is Avogadro’s Number?

  4. 6.022 x 1023

  5. What does Avogadro’s Number represent?

  6. It represents the number of molecules per mole of substance.

  7. How many molecules are in 3.6 moles of Silver (Ag)?

  8. 2.2 x 1023 molecules Ag

  9. How many moles are in 1.240 x 1040 molecules of Barium (Ba)?

  10. 2.059 x 1016 moles of Ba

  11. How many hydrogen molecules are present in 2.356 x 1019 moles of H2O?

  12. 2.838 x 1043 molecules of H

  13. How many moles are present in 1.254 x 1045 molecules of Nitrogen?

  14. 2.082 x 1021 moles of N

  15. How do you go about converting moles to grams or grams to moles?

  16. Use the molar mass

  17. Calculate the number of H atoms in .350 mol of C6H12O6?

  18. 2.53 x 1024 H atoms

  19. Arrange the following samples in order of increasing # of C atoms: (a) 12 grams C, (b) 1 mol C2H2, (c) 9 x 1023 molecules of CO2

  20. (a), (c), (b)

  21. How many molecules of O are in 12.24 g of H2O?

  22. 4.095 x 1023 molecules of O

  23. What is an empirical formula?

  24. It is a chemical formula that tells us the ratio of atoms within the compound with the smallest integers.

  25. What is the step-by-step process that leads to the empirical formula from grams of each element?

  26. Grams of each element  Use molar mass to convert  Moles of each element  Calculate mole ratio  empirical formula

  27. Ascorbic acid contains 40.92% C, 4.58% H, and 54.50% O by mass. Find the empirical formula.

  28. C3H4O3

  29. What is the molecular formula of mesitylene if its molecular weight is 120 amu and its empirical formula is C3H4?

  30. C9H12

  31. Combusting .255 g of isopropyl alcohol produces .561 g of CO2 and .306 g of water. Determine the empirical formula of isopropyl alcohol.

  32. C3H8O

  33. How many grams are in .239 moles of water?

  34. 4.30 grams of water

  35. How many liters are in 2.09 moles of water? (1g water = 1 cm3)

  36. .0376 L

  37. How many molecules of C are in 7.05 L of CO2?

  38. 1.90 x 1023 molecules of C

  39. How many moles of H2O are formed when 6.79 grams of C2H4O2 are combusted in open air?

  40. .226 moles of water

  41. How many grams of H are produced when 9.2 grams of C2H4O2 are combusted in air?

  42. .61 grams of H

  43. What ratio is used to convert b/w amounts of reactants & products in a reaction?

  44. Mole ratio

  45. How many moles of O2 are used to make 2.3 moles of CO2?

  46. 2.3 moles of O2

  47. How many grams of NaOH form when 4.2 moles of Na2O and 4.2 moles of water combine?

  48. 340 grams of NaOH

  49. How many moles of sulfuric acid form when .356 grams of SO3 and 1.98 grams of water combine? What is the limiting reactant?

  50. Daily Double!!! .00444 moles of acid, SO3

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