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Topic: How do you convert from %v/v to molar concentration?  (Read 10707 times)

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Offline sully039

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How do you convert from %v/v to molar concentration?
« on: October 18, 2011, 05:34:45 PM »

I'm doing a lab which needs me to test the change in volume of different concentrations of vinegar being added to baking soda. My teacher says the stock solution of vinegar is 5%v/v. I was thinking of making different concentrations by using the equation C1V1=C2V2 (dilutions), but do I need to change the %v/v to molar concentration (mol/L) to do this? Or can I just go ahead and use this equation for 5%v/v to make the other concentrations?

appreciate the help
-sully

Offline Borek

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Re: How do you convert from %v/v to molar concentration?
« Reply #1 on: October 18, 2011, 06:02:59 PM »
Going through the molarities and taking density changes into account guarantees correct result.

See http://www.chembuddy.com/?left=concentration&right=dilution-mixing for some more details.

I am not sure it is the fastest approach.
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