9012011fppt

# 9012011fppt - K f for water is 1.86 (°C·kg)/mol. 2...

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1 Boiling-Point Elevation and Freezing-Point Depression 07 How many grams of ethylene glycol antifreeze, CH 2 (OH)CH 2 (OH), must you dissolve in one liter of water to get a free ing point of 20 0 C The molar mass of eth lene gl col is freezing point of –20.0°C. The molar mass of ethylene glycol is 62.01 g. For water, K f = 1.86 (°C·kg)/mol. What will be the boiling point? Boiling-Point Elevation and Freezing-Point Depression 08 What is the molality of an aqueous solution of KBr whose freezing point is –2.95°C?

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Unformatted text preview: K f for water is 1.86 (°C·kg)/mol. 2 Boiling-Point Elevation and Freezing-Point Depression 08 • What is the freezing point (in °C) of a solution prepared by dissolving 7.40 g of K 2 SO 4 in 110 g of water? The value of K f for water is 1.86 (°C·kg)/mol. Osmosis and Osmotic Pressure • The average osmotic pressure of seawater is about 30.0 atm at 25°C. Calculate the molar concentration of an aqueous solution of urea [(NH 2 ) 2 CO] that is isotonic with seawater....
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## This note was uploaded on 12/09/2011 for the course CHEM 1 taught by Professor Staff during the Summer '11 term at Simon Fraser.

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9012011fppt - K f for water is 1.86 (°C·kg)/mol. 2...

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