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Topic: help with these problems {solutions, percentages}  (Read 1427 times)

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Offline netsfan549

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help with these problems {solutions, percentages}
« on: October 16, 2012, 12:27:56 AM »
A solution is prepared by mixing 2.35 g of NaCl in water to make 175.0 mL of solution. The density of the solution is 1.05 g/mL.
(a) The solvent is _________________ (b) The solute is ____________________ (c) The % w/v of NaCl in this solution is (d) The % w/w of NaCl in this solution is ______________________. _____________________ (e)

Describe how you would prepare the following solutions:
(a) 140. mL of a 23.0% v/v solution of ethanol, C2H6O, in water.



Hey guys, I need help with this question.. Thank you so much
« Last Edit: October 16, 2012, 08:21:48 AM by Arkcon »

Offline Hunter2

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Re: help with these problems
« Reply #1 on: October 16, 2012, 01:31:25 AM »
What is your own attempt? Where do you have questions on this exercise?
With the density you can calculate the mass.  So what is solvent,its a liquid here.

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