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Biology and Chemistry Homework Help
Calculating 100ml with a mole vs mole ratio
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[QUOTE="miniradman, post: 3503322, member: 319678"] [h2]Homework Statement [/h2] I have pure ethanol and water. When mixed, the total volume is not the sum of the individual volumes (its a little bit less). A wikipedia graph has shown that a 0.4mol ethanol to 0.6mol to water mixture is ideal to get the most contraction. ([url]http://upload.wikimedia.org/wikipedia/commons/4/45/Excess_Volume_Mixture_of_Ethanol_and_Water.png[/url]) How do I calculate how much ethanol and water to add if I needed to get 100ml of solution with the mole ratio is 0.4 ethanol to 0.6 water. [h2]The Attempt at a Solution[/h2] I honestly don't know what to do, I just need hints or something because trying to get my heard around this concept in making my head hurt :confused: Thanks, guys [/QUOTE]
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Calculating 100ml with a mole vs mole ratio
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