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Slides 2 through 5 were part of a series on H bonding. PowerPoint PPT Presentation


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Slides 2 through 5 were part of a series on H bonding. . Is acetone an H bond donor?. a. yesb. noc. can’t be determined. Is acetone an H bond acceptor?. a. yesb. noc. can’t be determined. Would there be H bonding in pure acetone?.  a. yesb. noc. can’t be determined.

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Slides 2 through 5 were part of a series on H bonding.

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Slides 2 through 5 were part of a series on h bonding

  • Slides 2 through 5 were part of a series on H bonding.


Is acetone an h bond donor

Is acetone an H bond donor?

a. yesb. noc. can’t be determined


Is acetone an h bond acceptor

Is acetone an H bond acceptor?

a. yesb. noc. can’t be determined


Would there be h bonding in pure acetone

Would there be H bonding in pure acetone?

 a. yesb. noc. can’t be determined


Would there be h bonding in acetone that had water dissolved in it

Would there be H bonding in acetone that had water dissolved in it?

a. yesb. noc. can’t be determined


Slides 2 through 5 were part of a series on h bonding

2-methylpropane and isopropyl alcohol have comparable molecular weights. Which substance will have stronger intermolecular interactions between its molecules?

a. 2-methylpropaneb. isopropyl alcohol

c. ~same


What type of solvent would concentrated sulfuric acid be

What type of solvent would concentrated sulfuric acid be?

  • Nonpolar

  • Hydroxylic

  • Polar Aprotic

  • None of the above


Slides 2 through 5 were part of a series on h bonding

  • Slides 9 – 11 were part of a series covering H bonding and solubility. In slide 10, the pictures were not shown when the question was asked. A significant number of students answered yes. Then the pictures were shown the pictures and they were asked again.


Slides 2 through 5 were part of a series on h bonding

  • Carbohydrates would be expected to be readily soluble in water because they have many sites capable of H-bonding with water.


Would cellulose be soluble in water

Would cellulose be soluble in water?

  • yes

  • no

  • can’t be determined


Slides 2 through 5 were part of a series on h bonding

  • However, cellulose has many OH groups that should readily H-bond with water, yet it doesn’t dissolve.

  • In this case, the intermolecular attraction through H-bonding between the cellulose chains due to the way they line up is so strong, that solvation does not occur easily


H bonding in amines

H-Bonding in Amines

Are 1 amines capable of H-bonding with themselves?

  • yesb. no

    c. impossible to determine


Amine structure

Amine Structure

Are 3 amines capable of H-bonding with themselves?

  • yesb. no

    c. impossible to determine


Physical properties

Physical Properties

If an amine is capable of H bonding does that increase or decrease its m.p. and b.p. relative to other compounds of similar polarity and m.w.?

  • increaseb. decrease

    c. neither


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