Respuesta :

Answer:

        [tex]C_{17}H_{18}FN_3O_3[/tex]

Explanation:

In the figure attached, I have numbered the carbon atoms to permit to count them easily.

1.  Carbon atoms

Each vertex without a letter represents a carbon atom:

  • Count them: 17 (they are numbered on the figure attached)

2. Hydrogen atoms

For each carbon subract 1 for each bond and subtract 1 for each group attached to it:

  • Carbon 1: 4 - 2 = 2
  • Carbon 2: 4 - 2 = 2
  • Carbon 3: 4 - 2 = 2
  • Carbon 4: 4 - 2 = 2
  • Carbon 5: 4 - 4 = 0
  • Carbon 6: 4 - 4 = 0
  • Carbon 7: 4 - 3 = 1
  • Carbon 8: 4 - 4 = 0
  • Carbon 9: 4 - 4 = 0
  • Carbon 10: 4 - 3 = 1
  • Carbon 11: 4 - 4 = 0
  • Carbon 12: 4 - 4 = 0
  • Carbon 13: 4 - 3 = 1
  • Carbon 14: 4 - 3 = 1
  • Carbon 15: 4 - 2 = 2
  • Carbon 16: 4 - 2 = 2
  • Carbon 17: 4 - 4 = 0

Total H atoms attached to C atoms:

  • 2 + 2 + 2 + 2 + 1 + 1 + 1 + 1 + 2 + 2 = 16

  • H in NH group: 1
  • H in OH group: 1

Total H atoms in all: 16 + 2 = 18

3. Fluorine atoms

Count them:

  • F: 1

4. Nitrogen atoms

Count them:

  • N: 3

5. Oxygen atoms

Count them:

  • O: 3

6. Molecular formula

Summary:

  • C: 17
  • H: 18
  • F: 1
  • N: 3
  • O: 3

Molecular formula:

        [tex]C_{17}H_{18}FN_3O_3[/tex]

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