Why do you need to swirl the flask constantly during the titrimetric analysis? a. To look cool during the experiment b. To distribute the titrant throughout the sample c. To prevent the accumulation of phenolphthalein on the center of the solution d. To preserve the sample Due to your excitement for the experiment, you forgot to remove air bubbles in the burette while performing standardization. You only noticed when you saw the bubble below the stopcock. What would be its effect on the concentration of the unknown sample? a. Increase b. Decrease c. No effect d. Cannot be determined All of the following criteria must be met for a titrimetric analysis to be feasible EXCEPT: a. Reaction between the standard and analyte must be known. b. Reaction between the reactants must be slow. c. Reaction must proceed quantitatively to completion. d. There should be a substance for endpoint detection
Why do you need to swirl the flask constantly during the titrimetric analysis? a. To look cool during the experiment b. To distribute the titrant throughout the sample c. To prevent the accumulation of phenolphthalein on the center of the solution d. To preserve the sample Due to your excitement for the experiment, you forgot to remove air bubbles in the burette while performing standardization. You only noticed when you saw the bubble below the stopcock. What would be its effect on the concentration of the unknown sample? a. Increase b. Decrease c. No effect d. Cannot be determined All of the following criteria must be met for a titrimetric analysis to be feasible EXCEPT: a. Reaction between the standard and analyte must be known. b. Reaction between the reactants must be slow. c. Reaction must proceed quantitatively to completion. d. There should be a substance for endpoint detection
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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Transcribed Image Text:Why do you need to swirl the flask constantly during the titrimetric analysis?
a. To look cool during the experiment
b. To distribute the titrant throughout the sample
c. To prevent the accumulation of phenolphthalein on the center of the solution
d. To preserve the sample
Due to your excitement for the experiment, you forgot to remove air bubbles in the burette
while performing standardization. You only noticed when you saw the bubble below the
stopcock. What would be its effect on the concentration of the unknown sample?
a. Increase
b. Decrease
c. No effect
с.
d. Cannot be determined
All of the following criteria must be met for a titrimetric analysis to be feasible EXCEPT:
a. Reaction between the standard and analyte must be known.
b. Reaction between the reactants must be slow.
c. Reaction must proceed quantitatively to completion.
d. There should be a substance for endpoint detection
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