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Calculate the molality of each solution.(a) 0.25 mol

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 97P Chapter 13

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 97P

Calculate the molality of each solution.

(a) 0.25 mol solute; 0.250 kg solvent

(b) 0.882 mol solute; 0.225 kg solvent

(c) 0.012 mol solute; 23.1 g solvent

Step-by-Step Solution:
Step 1 of 3

Answer :

Molality :

Molality 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.

 A solution with a molality of 3 mol/kg is often described as "3 molal" or "3 m."

(a) 0.25 mol solute; 0.250 kg solvent.

We know that

Molality = no.of moles of solute /Kg of solvent .

                =0.25 m/0.250 Kg

       ...

Step 2 of 3

Chapter 13, Problem 97P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Calculate the molality of each solution.(a) 0.25 mol

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