AP CHEMISTRY QUESTION helpp

[churchdoesmatter]

i have no freaking clue what the question is asking

addition of a non-volatile solute to a solvent

a. lowers the freezing point and boiling point
b.raises the freezing point adn the boiling point
c.rasies the freezing point adn lowers the boiling point,
d. lowers the ferezing point adn raises the boiling point,
e. only affects the freezing point

 

[tweakmm]

wow...
you must be a smart 12 year old....

 

[Jejunum]

raises bp 99% sure (gahh 2 yrs of engineering chemistry later!)

and lowers freezing point
someone tell me if im wrong

answer is D


think of salt (solute) into water (solvent)

 

[RDSport323]

damn, even after taking organic chemistry... i've already forgotten the basics...

goes to show, o-chem sucks ass... dont ever take it.. unless you plan on making MDMA or want to learn how to make a bar of soap.. oh, that was fun..

ahh, the smell of acetone in the morning... its great.

 

[creektech]

I believe Jejunum is correct....D. Should be discussed under azeotropes in your Chem text.

 

[MrBond]

<< damn, even after taking organic chemistry... i've already forgotten the basics...

goes to show, o-chem sucks ass... dont ever take it.. unless you plan on making MDMA or want to learn how to make a bar of soap.. oh, that was fun..

ahh, the smell of acetone in the morning... its great. >>

LOL, I know what that's like. 8am organic lab every week last semester. I wanted to shoot myself in the head each morning when the alarm went off at 7. This semester it's at a more respectible 5:30pm

You're right about ochem being useless. I honestly see very little use for it in my field (ChemE) other then the hydrocarbon basics. I'm pretty sure I'll never be asked to draw out the mechanism for debromination of alkenes in my daily job...

 

[MrCodeDude]

a. lowers the freezing point and boiling point
b.raises the freezing point adn the boiling point
c.rasies the freezing point adn lowers the boiling point,
d. lowers the ferezing point adn raises the boiling point
e. only affects the freezing point

Since my biology class had a book that had some Chem in it, we basically had a crash course of chem for the first two months of school. I think D would be correct.

And beware of ImTyping, he doesn't believe in people helping other people. He thinks that it is our name on our report card, not AT's. Whatever, he must have been a loner when he was a kid and had no friends to help him.
-- mrcodedude

 

[dababus]

look into your book about boiling point elevation and freezing point depression.