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    kp2171's Avatar
    kp2171 Posts: 5,318, Reputation: 1612
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    #381

    Aug 13, 2010, 09:26 PM
    Quote Originally Posted by Altenweg View Post
    You lost me at azeotrope.
    Yes. Id use that word to confuse and then seduce young women when teaching at the university.

    (kidding)

    Now... can I interest you in a lecture on how the length of hydrocarbon compounds can dramatically change the physical properties? Meaning, size does matter?
    Kitkat22's Avatar
    Kitkat22 Posts: 6,302, Reputation: 1191
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    #382

    Aug 13, 2010, 09:29 PM
    Quote Originally Posted by kp2171 View Post
    yes. id use that word to confuse and then seduce young women when teaching at the university.

    (kidding)

    now... can i interest you in a lecture on how the length of hydrocarbon compounds can dramatically change the physical properties? meaning, size does matter?


    Oh sweetie (tis is kp putting the moves on) you have a nice set of azeotropes.:o
    kp2171's Avatar
    kp2171 Posts: 5,318, Reputation: 1612
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    #383

    Aug 13, 2010, 09:30 PM
    Quote Originally Posted by Kitkat22 View Post
    She said they were the same amount. How can a white wine and red wine in the same size glasses not have the same volume?
    I assume they started with the same volume. Without that assumption, this is just unanswerable.

    but when you take out 5 mL from one and put it in the other... the original white now has just 95 mLs.

    I know its hard to get.

    I'm good at this stuff and my instinct answer was off.

    if all the reasonable assumptions are right... equal starting volumes and equal transfers, the math is the bottom line. White wins for higherst % by a smidge.

    if the assumptions are wrong... k... too many variables for my liking.
    Kitkat22's Avatar
    Kitkat22 Posts: 6,302, Reputation: 1191
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    #384

    Aug 13, 2010, 09:32 PM
    Quote Originally Posted by kp2171 View Post
    i assume they started with the same volume. without that assumption, this is just unanswerable.

    but when you take out 5 mL from one and put it in the other... the original white now has just 95 mLs.

    i know its hard to get.

    im good at this stuff and my instinct answer was off.

    if all the reasonable assumptions are right... equal starting volumes and equal transfers, the math is the bottom line. white wins for higherst % by a smidge.

    if the assumptions are wrong... k.... too many variables for my liking.
    Okay... I'll take your word for it.:)
    kp2171's Avatar
    kp2171 Posts: 5,318, Reputation: 1612
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    #385

    Aug 13, 2010, 09:33 PM
    Quote Originally Posted by Kitkat22 View Post
    Oh sweetie (tis is kp putting the moves on) you have a nice set of azeotropes.:o
    Fyi... there can be threesome (tertiary) azeotropic mixtures... just saying.
    kp2171's Avatar
    kp2171 Posts: 5,318, Reputation: 1612
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    #386

    Aug 13, 2010, 09:34 PM
    Quote Originally Posted by Kitkat22 View Post
    Okay ...I'll take your word for it.:)
    Nope. Take the poster word for it.

    I'm just the idiot with a keyboard thinking he knows the answer.
    Kitkat22's Avatar
    Kitkat22 Posts: 6,302, Reputation: 1191
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    #387

    Aug 13, 2010, 09:34 PM
    Quote Originally Posted by kp2171 View Post
    nope. take the poster word for it.

    im just the idiot with a keyboard thinking he knows the answer.
    You're no idiot! :cool:
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #388

    Aug 13, 2010, 09:46 PM
    Quote Originally Posted by kp2171 View Post
    yes. id use that word to confuse and then seduce young women when teaching at the university.

    (kidding)

    now... can i interest you in a lecture on how the length of hydrocarbon compounds can dramatically change the physical properties? meaning, size does matter?
    LOL! Sure, bring it on. :)
    Just Looking's Avatar
    Just Looking Posts: 1,610, Reputation: 480
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    #389

    Aug 13, 2010, 10:37 PM
    Quote Originally Posted by kp2171 View Post
    oops. crap. wrong.

    what worked in my head is wrong on paper.

    first... you must assume that both transfers are equal in volume... that exactly the same volume was moved in both cases.

    then...

    lets pretend we have 100 mL of each wine in two glasses.

    you take out 5 mL of white to the red. thats 105 mLs of wine in the "red" glass, 100 mL red with 5 mL white. its 95.238% red.

    then you take 5 mL of this mixture to the white.

    you add to 95 mL white 4.762 red and 0.228 mL white... for a total of 100 mL wine, but the composition is different... its just 95.228% white...

    the reason is you are adding in a mostly red aliquot to a lesser volume of white. the lesser volume of white is what got me mentally.

    pooh.

    shouldve done the math first.
    Okay, either it is too late and my one glass of wine did me in (not unusual), or you have a slight math error.

    I worked it out as follows:

    You start with 100 ml of white and 100 ml of red.
    5 ml of white is moved to the red, so you now have 95 ml of white, and 100 ml of red with 5 ml of white added.
    If you take 5 mil of this mix, 4.762 ml (=100/105*5) will be red and .238 (=5/105*5) ml will be white. This gets added to the 95 ml of white.

    The original white is now (95 ml+ .238 ml) 95.238 ml white and 4.762 ml red.
    The red mixture is now (100 ml-4.762 ml) 95.238 ml red and (5 ml-.238ml) 4.762 ml white.

    They are equal.

    In looking at your numbers, when you add the 5 ml to the 95, the correct numbers should be 4.762 and .238. It looks like a math error – as 4.762+.228 does not equal the 5 ml you are transferring, or another way to look at it is 95+4.762+.228= 99.99, not 100.

    Please tell me I haven't embarrassed myself. :o
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #390

    Aug 13, 2010, 10:40 PM

    I just want to know where my wine is! ;)
    Just Looking's Avatar
    Just Looking Posts: 1,610, Reputation: 480
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    #391

    Aug 13, 2010, 10:43 PM
    Quote Originally Posted by Altenweg View Post
    I just want to know where my wine is! ;)
    It's sitting in front of me. One glass is pretty much my limit, so help yourself. ;)
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #392

    Aug 13, 2010, 10:55 PM
    Quote Originally Posted by Just Looking View Post
    It's sitting in front of me. One glass is pretty much my limit, so help yourself. ;)
    Goody, goody, goody.

    Cheers! :)

    Nowr breeng on anotherrrr riddle. Hiccup. :)
    Just Looking's Avatar
    Just Looking Posts: 1,610, Reputation: 480
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    #393

    Aug 13, 2010, 10:56 PM

    If it takes ten men 3 hours to dig one hole, how many men does it take to dig half a hole in the same amount of time.
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #394

    Aug 13, 2010, 10:58 PM
    Quote Originally Posted by Just Looking View Post
    If it takes ten men 3 hours to dig one hole, how many men does it take to dig half a hole in the same amount of time.
    Silly girl, men don't dig holes, they make their wives do that. :p

    Is the answer 5?
    Just Looking's Avatar
    Just Looking Posts: 1,610, Reputation: 480
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    #395

    Aug 13, 2010, 10:59 PM
    Quote Originally Posted by Altenweg View Post
    Silly girl, men don't dig holes, they make their wives do that. :p

    Is the answer 5?
    I could make so many funny comments, but I won't. See - I told you... one glass of wine and I'm a goner already.

    Anyway, no, not 5.
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #396

    Aug 13, 2010, 11:05 PM
    Quote Originally Posted by Just Looking View Post
    I could make so many funny comments (men don't dig holes), but I won't. See - I told you ... one glass of wine and I'm a goner already.

    Anyway, no, not 5.
    2?

    1?

    They hired another crew?

    10?

    Math bites the big one! ;)
    Just Looking's Avatar
    Just Looking Posts: 1,610, Reputation: 480
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    #397

    Aug 13, 2010, 11:07 PM

    Give up? It's really a dumb riddle.
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #398

    Aug 13, 2010, 11:09 PM
    Quote Originally Posted by Just Looking View Post
    Give up? It's really a dumb riddle.
    I totally give up.

    Give me answer! Give me! I am knot a blonde! ;)
    Just Looking's Avatar
    Just Looking Posts: 1,610, Reputation: 480
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    #399

    Aug 13, 2010, 11:11 PM

    You can't dig half a hole! It would just be a different sized hole



    I know - dumb. Somehow it made me giggle... it's that one glass of wine. I'm such a cheap date. :p
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #400

    Aug 13, 2010, 11:15 PM
    Quote Originally Posted by Just Looking View Post
    You can't dig half a hole! It would just be a different sized hole



    I know - dumb. Somehow it made me giggle ... it's that one glass of wine. I'm such a cheap date. :p
    ::banging head on desk repeatedly::

    Why didn't I see that?

    Must be the wine you gave me.

    Ya, that's right, I blame you! ;) :D

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