Unit 4 Mole Project

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by Fabian Tryggvesson0 views·Updated Jun 10, 2021
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  1. Hello everyone today.
  2. We're gonna be learning about a concept called moles who's
  3. excited. I know I am in our lives.
  4. We use words to describe bigger quantities.
  5. So it's easier to organize and understand.
  6. An example of this is what the word doesn't, which
  7. we used to symbolize 12 of an item.
  8. We may have heard this one before, molds are used
  9. to help organize big numbers for chemists to help them
  10. deal with these large quantities of molecules.
  11. I'll be going through two examples today where we would
  12. use molds to solve our questions.
  13. So our first question is a distance problem.
  14. A mole of 100 and 89 centimeter tall, people stacked
  15. up could cover the tallest building in the world.
  16. How many times?
  17. So The data needed for calculations is the length of
  18. the people, which is 1.89 m tall And the tallest
  19. building in the world, which is the Burj Khalifa at
  20. 828 m tall.
  21. So the calculations, so we're going to multiply the length
  22. of the people times one mole, Which will equal the
  23. length of one Molesworth of people.
  24. So we're going to multiply 1.89 times, 6.02 times 10
  25. to the 23rd, Which meters, which will equal 1.14 times
  26. 10 to the 24th m.
  27. That number, we multiply 6.02 times 10, there is a
  28. God rose number and that's the that's the value of
  29. one mole.
  30. So when we have the length of one most worth
  31. of people, we're going to divide that by 828 m,
  32. which is the length of the tallest building in the
  33. world. So that will equal 1.37 times 10-21.
  34. So our conclusion, one mole of 1.89 m tall people
  35. stacked up would be the same length as 1.37 times
  36. 10 to the 21st 21 Burj Khalifa's.
  37. So our second problem we're going to run into is
  38. mass problem.
  39. So, have you ever wondered how many moles of blue
  40. female blue whales weigh as much as the sun?
  41. Well, let's see if we can figure it out.
  42. So the data needed for calculation is the weight of
  43. a blue whale, which is 190,000 kg, And then we
  44. have the weight of the sun, which is the 1.98,
  45. 9 times 10 to the uh to the 30th.
  46. Do you see how big that number is?
  47. It's gonna be very hard, very difficult to calculate if
  48. we don't use this type of exponents structure.
  49. So the calculations, so 190,000 times 6.02 Times 10 to
  50. the 23rd kg Equals 1.1, 4 times 10 to the
  51. 29th. So when we do that calculation, we're multiplying the
  52. weight of the blue whale times one mole to find
  53. the weight of one Molesworth of blue whales.
  54. So the second part of the calculation is that we
  55. need to uh way we need to divide the weight
  56. of the sun by the weight of one molds worth
  57. of blue whales, which will help us find how many
  58. moles of blue whales would equal the head of the
  59. weight of the sun.
  60. So 1.9, 8, 9 times 10 to the 30th, Divided
  61. by 1.1, 4 times 10 to the 29 kg equals
  62. 17.4 moles.
  63. So our conclusion is that it would take 17.4 Molesworth
  64. of female blue whales to equal the weight of the
  65. sun. So we're going to finish this off by looking
  66. at our bibliography and our references and thank you for
  67. listening.