PRA029 - Colligative Properties Worksheet 1) If I add 45...

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Colligative Properties Worksheet 1) If I add 45 grams of sodium chloride to 500 grams of water, what will the melting and boiling points be of the resulting solution? K b (H 2 O) = 0.52 0 C/ m and K f (H 2 O) = 1.86 0 C/m. 2) What is the vapor pressure of the solution in problem #1 at 25 0 C? The vapor pressure of pure water at 25 0 C is 3.17 kPa. 3) Which solution will have a higher boiling point: A solution containing 105 grams of sucrose (C 12 H 22 O 11 ) in 500 grams of water or a solution containing 35 grams of sodium chloride in 500 grams of water? For chemistry help, visit www.chemfiesta.com © 2002 Cavalcade Publishing – All Rights Reserved
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Colligative Properties Worksheet – Answers 1) If I add 45 grams of sodium chloride to 500 grams of water, what will the melting and boiling points be of the resulting solution? K b (H 2 O) = 0.52 0 C/ m and K f (H 2 O) = 1.86 0 C/m. To find the melting and boiling points, you’ll first need to find the concentration of the solution. To find the molality, convert grams of
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This note was uploaded on 11/13/2010 for the course CHEM 11578 taught by Professor Juliakovacs during the Fall '09 term at University of Washington.

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PRA029 - Colligative Properties Worksheet 1) If I add 45...

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