Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 24, Problem 24.11QAP
Interpretation Introduction
Interpretation:
The mass of
Concept introduction:
The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.
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acid dissociation constants for H3PO4 (Ka1 = 7.11 × 10-3, Ka2 = 6.32 × 10-8, Ka3 = 7.1× 10-14), calculate standard reduction potential for the half reactionH2PO4- + H+ + 2e HPO32- + H2O
At 25ºC, you conduct a titration of 20.00 mL of a 0.0400 M AgNo3 solution with a 0.050 M NaI soution within the following cell:
saturated calomel electrode | Titration solution | Ag (s)
For the cell as written, what is the voltage after the addition of 40.00 mL of NaI solution? The reduction potential for the saturated calomel electrode is E= 0.241 V. The standard reduction potential for the reaction: Ag++e- ® Ag (s)
E0= 0.79993 V. The solubility constant of AgI is Ksp=8.3x10^-17
Note: the cell potential could be negative since the conditions are non-standard ones.
a) -0.146
b) -0.292
c) 0.146
d) 0.360
e) 0.180
A galvanic cell was constructed with a nickel electrode that was dipped into 1.5 M NISO4 solution and a chromium electrode that was
immersed into a solution containing Cr3t at an unknown concentration.
The potential of the cell was measured to be 0.534 V, with the chromium serving as the anode. The standard cell potential for this
system was determined to be 0.487 V.
What was the concentration of Cr3+ in the solution of unknown concentration?
[Cr3+] =
[Cr3+) = i
Chapter 24 Solutions
Principles of Instrumental Analysis
Ch. 24 - Prob. 24.1QAPCh. 24 - Calculate the minimum difference in standard...Ch. 24 - Prob. 24.3QAPCh. 24 - Halide ions can he deposited at a silver anode,...Ch. 24 - What cathode potential (versus SCE) would be...Ch. 24 - Calculate the Lime required for a constant current...Ch. 24 - Calculate the time required for a constant current...Ch. 24 - Prob. 24.8QAPCh. 24 - Prob. 24.9QAPCh. 24 - A 0.0712-g sample of a purified organic acid was...
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