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Solved: A 122-mL sample of a 1.2 M sucrose solution is diluted to 500.0 mL. What is the

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

Solution for problem 81P 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 81P

Problem 81P

A 122-mL sample of a 1.2 M sucrose solution is diluted to 500.0 mL. What is the molarity of the diluted solution?

Step-by-Step Solution:

Solution 81P :

Step 1:

Volume of initial concentrated solution = 122-mL

Molarity of initial concentrated solution = 1.2 M

Volume of diluted solution = 500.0 mL

Molarity of diluted solution = ?

Molarity(M) is a unit of concentration measuring the number of moles of a solute per liter of solution. The SI unit of molarity is mol/L.

To calculate the molarity of the diluted solution, we use the formula :

                        

M1V1 = M2V2

Where, M1 and V1 = Molarity and volume of initial concentrated solution.

         M2 and V2 = Molarity and volume of final diluted solution.  

We have to calculate M2, hence the formula becomes :

                M2 =

Volume of initial and final solution are given in mL, let’s convert to L :

                1 L = 1000 mL

Therefore, 122 mL in L will be :

                

                = 0.122 L

Therefore, 500 mL in L will be :

                

                = 0.500 L

Now, let’s calculate the molarity :

=

= 0.2928 M

Hence, molarity of diluted solution is 0.2928 M

Step 2 of 1

Chapter 13, Problem 81P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Solved: A 122-mL sample of a 1.2 M sucrose solution is diluted to 500.0 mL. What is the