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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: firedamage on January 21, 2009, 09:18:03 AM

Title: why trichloroethane is insoluble in water?
Post by: firedamage on January 21, 2009, 09:18:03 AM
why trichloroethane is insoluble in water?can someone give me the explanation?
Title: Re: why trichloroethane is insoluble in water?
Post by: Astrokel on January 21, 2009, 10:28:12 AM
What type of intermolecular attraction between the molecule and water must be existed to be soluble in water? Is it possible for trichloroethane, looking at the conditions for the attraction?
Title: Re: why trichloroethane is insoluble in water?
Post by: firedamage on January 24, 2009, 01:11:14 AM
If ethanol is miscible in water,means that there are  intermolecular forces between the ethanol molecules and water?
Title: Re: Write equations
Post by: firedamage on January 24, 2009, 01:37:13 AM
xylene is immiscible in water because there are no intermolecular forces among the molecules?
Title: Re: why trichloroethane is insoluble in water?
Post by: Astrokel on January 24, 2009, 01:44:03 AM
Yes and what type is that?
Title: Re: why trichloroethane is insoluble in water?
Post by: firedamage on January 24, 2009, 10:38:19 PM
1,1,1-trcholoroethane
Title: Re: why trichloroethane is insoluble in water?
Post by: Astrokel on January 24, 2009, 11:16:59 PM
No i'm asking what type of intermolecular force are not present resulting in immiscible in water? Also, there definitely exist intermoleclar forces between molecules, it just happens which is the dominant one.
Title: Re: why trichloroethane is insoluble in water?
Post by: firedamage on January 25, 2009, 07:59:45 AM
trichloroethane is 3ml while water is 1ml....
Title: Re: why trichloroethane is insoluble in water?
Post by: Arkcon on January 25, 2009, 10:07:22 AM
firedamage:, just an opinion here, see if you agree with me, but look at the dialog you've joined in here:

Yes and what type is that?

1,1,1-trcholoroethane

No i'm asking what type of intermolecular force are not present resulting in immiscible in water? Also, there definitely exist intermoleclar forces between molecules, it just happens which is the dominant one.

trichloroethane is 3ml while water is 1ml....

This is not work, on your part, this is random text, just typed in.  Now you might not understand where Astrokel: is going with his questions, but typing in the volumes, really doesn't have a bearing on the question.  Try to summarize, what you know, and what you don't, and ask complete questions, so we can all help.

Title: Re: why trichloroethane is insoluble in water?
Post by: firedamage on January 26, 2009, 03:01:38 AM
i am doing an experiment call"properties and changes of matter".
A.Mixinig liqiuid
1)place about 3ml of trichloroethane into a test tub.add about 1 ml of deionised water and gently shake the test tube.Are the 2 liquid miscible?
2)If the 2 liquids are not miscible,identify the liquid,trichloroethane or water,that is on top.you may determine which liqiud on top by the relative quantities placed into the test tube.

answer:
immiscible liqiud on top:water denser liquid:trichloroethane

I NEED TO DO MY EXPERIMENT REPORT SO I NEED SOME EXPLANATION.
Title: Re: why trichloroethane is insoluble in water?
Post by: Arkcon on January 26, 2009, 08:18:10 AM
i am doing an experiment call"properties and changes of matter".
A.Mixinig liqiuid
1)place about 3ml of trichloroethane into a test tub.add about 1 ml of deionised water and gently shake the test tube.Are the 2 liquid miscible?
2)If the 2 liquids are not miscible,identify the liquid,trichloroethane or water,that is on top.you may determine which liqiud on top by the relative quantities placed into the test tube.

A-ha.  Interesting trick they employ, to help you find the answer -- 3 ml TCE, one mL water -- if they're immisible, which layer is which?  What did you see?  How can you use the different volumes of the layers to answer the question?