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Topic: Properties of Solutions  (Read 4684 times)

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Offline munoz_m1

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Properties of Solutions
« on: January 27, 2008, 08:26:18 PM »
How would you prepare a .150 M solution of glucose in water? A 1.35 m solution of KBr in water? And a solution of methyl alcohol and water in which X of CH3OH is 0.150 and X of H20 is 0.85?

Pleeeeeeeease help me! I have a headache with all this=(

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Offline enahs

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Re: Properties of Solutions
« Reply #1 on: January 27, 2008, 09:48:25 PM »
You would put that amount of mols into 1 liter of water...

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Offline Borek

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Re: Properties of Solutions
« Reply #2 on: January 28, 2008, 09:46:17 AM »
Quote from: enahs on January 27, 2008, 09:48:25 PM
You would put that amount of mols into 1 liter of water...

More like "You will dissolve that amount of substance in such amount of water theat the solution volume is 1L".
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Offline CABAL

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Re: Properties of Solutions
« Reply #3 on: January 28, 2008, 10:35:31 AM »
Hey!
Glucose is C6H12O6, so that is 180 g/mol. That gives 180g/mol x 0.150 = 27g
You add 27g and fill with water to the 1L mark (if you’re making a liter :))

You follow the same approach with the others

Thanks,

Nicholas
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