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02-23-2008, 07:36 PM
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| Chemistry Help?
1-A sealed container of nitrogen gas contains 6 x 10^23 molecules at STP. As the temperature increases, the mass of the nitrogen will a) decrease b) increase c) remain the same 2- A solution of KCl(aq) contains 15 grams of solute in 85 grams of water. What is the concentration of the solution in percent by mass? a) 0.2% b) 6.0% c) 15% d) 2.0% Please dont just tell me the answers, please explain as much as you can. Thanks in advance       |
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