Consider a random mixture containing 7.00x10° particles of Na2CO3 and 5.00x107 particles of K2CO3. Please do the following a. What is the expected number of NazCO3 particles if you analyze 2500 particles? b. What is the expected number of K2CO3 particles if you analyze 2500 particles?

Consider a random mixture containing 7.00x10° particles of Na2CO3 and 5.00x107 particles of K2CO3. Please do the following a. What is the expected number of NazCO3 particles if you analyze 2500 particles? b. What is the expected number of K2CO3 particles if you analyze 2500 particles?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.5QAP

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Question

Consider a random mixture containing 7.00x106 particles of NazCO3 and
5.00x107 particles of K2CO3. Please do the following
a. What is the expected number of Na2CO3 particles if you analyze 2500 particles?
b. What is the expected number of K2CO3 particles if you analyze 2500 particles?
c. If the experiment analyzing 2500 particles is repeated many times, what will be
the standard deviation of the sampling operation, s?
d. What will be the relative standard deviation for the number of K2CO3 particles?

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