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What is the minimum volume of 5.0 M HCl required to

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

Solution for problem 91P Chapter 14

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 91P

What is the minimum volume of 5.0 M HCl required to completely dissolve 10.0 g of magnesium metal?

Step-by-Step Solution:

Solution 91P :

Step 1:

Given :

Molarity of HCl(Hydrochloric acid) = 5.0 M

Amount of Mg metal = 10.0 g

Volume of HCl to completely dissolve Mg = ?

Let’s write the chemical equation for the given scenario :

                        Mg(s) + 2HCl →  MgCl2 + H2(g)

From the above reaction, we see the ratio of reactants is 1 : 2.

Now, let’s find the number of moles of Mg and HCl :

                Number of moles(n) =

Molar mass of Mg = 24.305 g/mol.

Therefore, n =

         = 0.411 moles.                                   

We are not given the mass of HCl, but from the reaction, we know that the ratio of Mg and HCl is 1 : 2. Hence, we calculate the moles of HCl as :

                  = 0.411 2

  = 0.822 moles.

Step 2 of 2

Chapter 14, Problem 91P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

The full step-by-step solution to problem: 91P from chapter: 14 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Since the solution to 91P from 14 chapter was answered, more than 333 students have viewed the full step-by-step answer. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This full solution covers the following key subjects: completely, dissolve, HCL, magnesium, metal. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. The answer to “What is the minimum volume of 5.0 M HCl required to completely dissolve 10.0 g of magnesium metal?” is broken down into a number of easy to follow steps, and 18 words. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5.

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