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# Solved: Complete and balance each gas-evolution equation. ISBN: 9780321809247 1

## Solution for problem 89E Chapter 4

Chemistry: A Molecular Approach | 3rd Edition

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Problem 89E

Complete and balance each gas-evolution equation. Step-by-Step Solution:
Step 1 of 3

Solution: Here, we are going to calculate the percentage by mass of magnesium hydroxide in the given sample. Step1: Given, the volume of NaOH solution used = 19.85 mL = 19.85 / 1000 L = 0.01985 L The molarity of NaOH solution used = 0.1020 M Therefore, number of moles of NaOH solution = Volume of solution in litres X Molarity = 0.01985 L X 0.1020 M = 0.002 mol Step2: Again, the volume of HCl solution used = 100.0 mL = 100 / 1000 L = 0.100 L The molarity of HCl solution used = 0.2050 M Therefore, number of moles of HCl solution = Volume of solution in litres X Molarity = 0.100 L X 0.2050 M = 0.0205 mol Since, 1 mole of NaOH will react with 1 mole of HCl for complete neutralisation, therefore, 0.002 mol of NaOH will react will 0.002 mol of HCl for neutralization. Thus, number of moles of HCl reacted with magnesium hydroxide =...

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##### ISBN: 9780321809247

Since the solution to 89E from 4 chapter was answered, more than 281 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Chemistry: A Molecular Approach, edition: 3. This full solution covers the following key subjects: hydroxide, solution, sample, magnesium, mass. This expansive textbook survival guide covers 82 chapters, and 9464 solutions. The full step-by-step solution to problem: 89E from chapter: 4 was answered by , our top Chemistry solution expert on 02/22/17, 04:35PM. Chemistry: A Molecular Approach was written by and is associated to the ISBN: 9780321809247. The answer to “Complete and balance each gas-evolution equation.” is broken down into a number of easy to follow steps, and 6 words.

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