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Arrange the compounds in the order of increasing boiling point ***(LOWEST first):

1) H3C-O-CH3

2) H2O

3) CH3CH2OH

4) CH3CH2SH

I think the order should be:

#1, 4, 3, 2

Arrange the following in order of increasing rate of reactivity with conc.HBr ***(LEAST first).

a) cyclopentane-CH2OH

b) cyclopentanol (cyclopentane-OH)

c) 1-methylcyclopentanol

d) CH3CH2OH

(this one I have no idea for the order!)

Arrange the compounds in the order of increasing solubility in water ***(LOWEST first):

a) CH3OH

b) CH3CH2CH2CH2CH2OH

c) CH3CH2CH2CH2OH

d) HOCH2CH2CH2CH2CH2OH

I think that the order should be:

B, C, D, A ?????

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6 answers

  1. Our regular chemist expertm DrBob222, is taking a vacation for a week, so it is quite likely that no one will be available to help you with your organic chem questions. Thank you for using the service, and I hope that you will continue to do so. Perhaps another person using this web site will be able to help you.

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  2. He told you he would be away for a week? He mentioned that he would take a short break but I didn't know it was only for a week.

    Thanks,
    ~christina~

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  3. Thank you...good to know, but isn't there a "Dr.Russ" that works with Organic Chem??

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  4. 1. hydrogen bonding causes higher boiling points

    water=> highest of course at 100°C
    dimethylether=> -24.8 °C
    ethyl alcohol=> 78.4 °C
    CH3CH2SH (Ethanethiol)=>35 °C

    so it's correct.

    2. can't help here, I know what reacts and such but not how reactive they are (from least to greatest or etc.)

    3. I think it's right since the longer the molecule the less soluble it is. And if it can have hydrogen bonding it will be more soluble.

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  5. thank you

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  6. I guess drwls you don't know about what I asked but I was just curious if Dr.Bob actually said he would be away for "a week". (hence me thinking the main helpers have contact with each other outside Jiskha)

    So you or anyone else with the capability can delete the usless post of mine above.

    Thank You
    ~christina~

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