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elixir [45]
2 years ago
11

Below is the thermochemical equation for the combustion of octane.

Chemistry
1 answer:
Gnom [1K]2 years ago
8 0

5mol produces -10.941KJ

4 mol let produces x KJ

Solve through proportion

  • 5/-10.941=4/x
  • 5x=-43.764
  • x=-43.764/5
  • x=8.756 KJ
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Which aqueous solution has the lowest freezing point c6h12o6, c2h5oh, ch3cooh, or nacl?
Eddi Din [679]
Depression of a freezing point of the solutions depends on the number of particles of the solute in the solution.
1 mol of C6H12O6 after dissolving in water still be 1 mol, because C6H12O6 does no dissociate in water.
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1 mol of NaCl after dissolving in water gives 2 mol of particles (ions), because NaCl is a strong electrolyte(as salt) and completely dissociates in water.
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1 mol of CH3COOH after dissolving in water gives more than 1 mol but less than 2 moles, because CH3COOH is a weak electrolyte (weak acid) and dissociates  only partially. 

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3 years ago
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8 0
3 years ago
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sweet [91]

Answer:

B

Explanation:

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3 years ago
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harkovskaia [24]
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Adi loves the smell of lavender, so she decides to press a few petals of the flower until they release a few drops of oil. She w
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Answer:

See Explanation

Explanation:

What Adi failed to realize is that the oily substance that was obtained from lavender consists of a mixture of substances. It is not only the required  fragrance that is present in the extract.

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