ASAP: Please help me solve for Average Molarity of EDTA Standard Solution and Ca Titer (mg Ca/mL of EDTA Solution). Show step by step solution. This is the data.
ASAP: Please help me solve for Average Molarity of EDTA Standard Solution and Ca Titer (mg Ca/mL of EDTA Solution). Show step by step solution. This is the data.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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ASAP:
Please help me solve for Average Molarity of EDTA Standard Solution and Ca Titer (mg Ca/mL of EDTA Solution). Show step by step solution.
This is the data.
Transcribed Image Text:Table 1B. Determination of the concentration of EDTA solution (Molarity)
Reaction: Ca(aq) + · EDT Alaq) → CaEDTA²(aq)
Details
Molarity of Ca Standard Solution
Volume (mL) of Ca Standard Solution Titrated
Amount (mmoles) Ca
Amount (mmoles) EDTA reacted
Volume (mL) of the EDTA solution delivered
Molarity of EDTA solution
Average Molarity of EDTA
Deviation
Standard Deviation
Coefficient of Variation (%RSD)
Trial 1
0.009884
25.00
0.2471
0.2471
21.70
0.01139
0.01146
-0.00007
0.00008
0.70
Trial 2
25.00
0.2471
0.2471
21.60
0.01144
-0.00002
Trial 3
25.00
0.2471
0.2471
21.40
0.01155
+0.00009
Transcribed Image Text:Table 1A. Preparation of Ca²+ Standard Solution
MMcacos = 100.09g/mol
mass CaCO3 (g)
Amount(mmol) Ca-Amount(mmoles) CaCO3
Volume (mL) of Ca Standard Solution
Molarity of Ca Standard Solution
0.2473
2.471
250
0.009884
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Does that mean that Average molarity of EDTA standard solution = Average molarity of EDTA? Will this always be the case?
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