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Fundamentals Of Analytical Chemistry

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.10QAP

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mass of eva dish+soap= 87.278
%3D
soap
Lab 4: Separation of Mixtures
Results and Discussion
Name
Date
Section
Part A: Sodium Chloride in a Saturated Solution
Before heating:
1. Mass of empty evaporating dish
40.2059
2. Mass of evaporating dish + salt solution
a. Mass of salt solution
After heating:
3. Mass of evaporating dish + salt
4. Mass of dry salt
(Use mass from last heating to determine)
5. Percent NaCl in the saturated solution:
Show the calculation, including units and sig figs:
7.001
27.
6. Calculate the percent error if the handbook value of NaCl in a saturated solution is
26.4%. Show the calculation, including units and correct significant figures:
7. If the sodium chloride content in sea water is 3.25%, is sea water close to being a
saturated solution? Explain why or why not. (Note: no calculation, but you should compare values!)
Adapted from Murov/Stedjee Experiments and Exercises in Basic Chemistry Laboratory Manual

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