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Originally Posted by morgaine300

Can you explain why?

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No... Maybe unequal since she or he stirred it.

There is more white in the white.

If 5 mL of white was moved to the red, it was undiluted.

If 5mL of the red with white was moved over to the red, it wasn't 5mL of red.. it was mostly red, but a little white back.

More white is in the white.

***edited... proved to be wrong in my later posts***

Quote:

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Originally Posted by kp2171

there is more white in the white.

if 5 mL of white was moved to the red, it was undiluted.

if 5mL of the red with white was moved over to the red, it wasnt 5mL of red.. it was mostly red, but a little white back.

more white is in the white.

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Smart alec:) How did you know that and is it the right?

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. That's 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 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.

Quote:

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Originally Posted by kp2171

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 4.776 red and 0.224 mL white... for a total of 100 mL wine, but the composition is different... its just 95.224% white...

the reason is you are adding in a mostly red aliquot to a lesser volume.

pooh.

shouldve done the math first.

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The stirring has something to do with it.

My head hurts.

Can we do an English riddle/problem? Math is not my strong point, and no, I'm not willing to learn. ;)

So... I was wrong at first... the red is more red percentage wise.

Unless the transfers weren't perfectly equal. Forgot to ask if a proper dialed pipette was used.

Quote:

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Originally Posted by kp2171

so... i was wrong at first... the red is more red percentage wise.

unless the transfers werent perfectly equal. forgot to ask if a proper dialed pipette was used.

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Analytical or what?:p

The stirring ensures consistent concentration.

If I add a little something to a lot of something else and don't stir, I cannot take a sample of it and have it be representative of the whole.

Quote:

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Originally Posted by kp2171

the stirring ensures consistent concentration.

if i add a little something to a lot of something else and dont stir, i cannot take a sample of it and have it be representative of the whole.

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But wouldn't some of the wine evaporate in the stirring? Or does wine evaporate?:confused:

Anyone who was worked with analytical chemical glassware knows they must mix and mix and mix to ensure proper, uh, mixing... and therefore, consistent concentration throughout the sample, no matter where you sample.

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Originally Posted by kp2171

anyone who was worked with analytical chemical glassware knows they must mix and mix and mix to ensure proper, uh, mixing... and therefore, consistent concentration throughout the sample, no matter where you sample.

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Okay Bill Nye,:p what's the answer?:)

The only thing I know is that I now want a glass of wine. I don't care if it's shaken, stirred, or mixed, I just want it in a glass. :)

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Originally Posted by Altenweg

The only thing I know is that I now want a glass of wine. I don't care if it's shaken, stirred, or mixed, I just want it in a glass. :)

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I knew you were going to say that:eek:

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Originally Posted by Kitkat22

But wouldn't some of the wine evaporate in the stirring? Or does wine evaporate?:confused:

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Ethanol doesn't evaporate that fast, and in water, it forms an azeotrope that boils off at a higher bp than pure... but I'm pretty damn sure this riddle has nothing to do with azeotropic mixtures...

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Originally Posted by Kitkat22

I knew you were gonna say that:eek:

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Crap! Am I that predictable? :eek:

So much for being an original. ;)

Quote:

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Originally Posted by kp2171

ethanol doesnt evaporate that fast, and in water, it forms an azeotrope that boils off at a higher bp than pure... but im pretty damn sure this riddle has nothing to do with azeotropic mixtures...

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You lost me at azeotrope.

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Originally Posted by Altenweg

You lost me at azeotrope.

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I think it's a big furry animal. Azeotrope.:rolleyes:

Quote:

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Originally Posted by Kitkat22

Okay Bill Nye,:p what's the answer?:)

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My first answer, more white in the white, was wrong.

It was wrong because I didn't crunch the numbers.

The fact that the white was a lower volume added to was the difference.

...

Got to love us chemists.

Our work makes for great party fodder.

Quote:

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Originally Posted by kp2171

my first answer, more white in the white, was wrong.

it was wrong because i didnt crunch the numbers.

the fact that the white was a lower volume added to was the difference.

...

gotta love us chemists.

our work makes for great party fodder.

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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?