Question

How many moles of ethylene glycol must be dissolved in 500 g of water to lower the freezing point to -5.00 °C? (Kf water = 1.86°/m) A)2.69 mol B)3.73 mol C)1.34 mol D)18.6 mol E)0.268 mol

Name: how many moles of ethylene glycol must be dissolved in 500 g of water to lower the freezing point to 500 c kf water 186m a269 mol b373 mol c134 mol d186 mol e0268 mol
Uploaded: 2023-06-20T15:39:48-08:00
Duration: 51 s
Channel: Gina Sporleder
Description: how many moles of ethylene glycol must be dissolved in 500 g of water to lower the freezing point to 500 c kf water 186m a269 mol b373 mol c134 mol d186 mol e0268 mol

          How many moles of ethylene glycol must be dissolved in 500 g of water to lower the freezing point to -5.00 °C? (Kf water = 1.86°/m) 

 
A)2.69 mol 

 
B)3.73 mol          

 
C)1.34 mol          
 
D)18.6 mol

 
E)0.268 mol

Added by Nazira K.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Gina Sporleder

06/20/2023

Step 1

First, we need to find the molality (m) of the solution using the formula ΔTf = Kf * m, where ΔTf is the change in freezing point, and Kf is the cryoscopic constant of water. Show more…

Show all steps

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How many moles of ethylene glycol must be dissolved in 500 g of water to lower the freezing point to -5.00 °C? (Kf water = 1.86°/m) A)2.69 mol B)3.73 mol C)1.34 mol D)18.6 mol E)0.268 mol