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Magnesium ions can be precipitated from seawater by the

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

Solution for problem 86P Chapter 8

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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5
Problem 86P

PROBLEM 86P

Magnesium ions can be precipitated from seawater by the addition of sodium hydroxide. How much sodium hydroxide in grams must be added to a sample of seawater to completely precipitate the 88.4 mg of magnesium present?

Step-by-Step Solution:
Step 1 of 3

Solution 86P

Here, we have to determine the amount of sodium hydroxide required to precipitate all of the Mg.

Mg2+(aq) +2 NaOH(aq) ------> Mg(OH)2 (s) + 2Na+(aq)

Therefore

Molar mass of NaOH =39.997 g/mol

Molar mass of Mg =24.305 g/mol

Thus,the conversion factors

g NaOH(aq)= mol NaOH(aq) = g Mg = mol Mg

Thus the amount of sodium hydroxide required

=  88.4 mg of  Mg x x x x...

Step 2 of 3

Chapter 8, Problem 86P is Solved
Step 3 of 3

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

Since the solution to 86P from 8 chapter was answered, more than 1143 students have viewed the full step-by-step answer. The answer to “Magnesium ions can be precipitated from seawater by the addition of sodium hydroxide. How much sodium hydroxide in grams must be added to a sample of seawater to completely precipitate the 88.4 mg of magnesium present?” is broken down into a number of easy to follow steps, and 36 words. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This full solution covers the following key subjects: sodium, seawater, magnesium, hydroxide, much. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. The full step-by-step solution to problem: 86P from chapter: 8 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM.

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