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Solved: Calculate the molality of a solution containing 12.5 g of ethylene glycol
Chapter 13, Problem 99P(choose chapter or problem)
Calculate the molality of a solution containing 12.5 g of ethylene glycol \(\mathrm {(C_2H_6O_2)}\) dissolved in 135 g of water.
Equation Transcription:
Text Transcription:
(C_2H_6O_2)
Questions & Answers
QUESTION:
Calculate the molality of a solution containing 12.5 g of ethylene glycol \(\mathrm {(C_2H_6O_2)}\) dissolved in 135 g of water.
Equation Transcription:
Text Transcription:
(C_2H_6O_2)
ANSWER:Solution 99P :
Step 1:
Here, we have to calculate the molality of each solution :
First, let’s see what is molality :
Molality(m) is a property of a solution and is defined as the number of moles of solute per kilogram of solvent. The SI unit for molality is mol/kg.
Formula to find the molality of solution :
Molality(m) =