21. What materials contain a precisely known concentration of a substance typically used in quantitative analysis? A. ACS grade Materials B. Chemical Standard Materials C. IUPAC Standard Materials D. PIPAC Standard Materials 22. Which type of curve is normally produced when plotting the change in the concentration of a specie of some function and the amount of reagent added? A. Titration curve B. Sigmoidal Curve C. Phase Transition curve D. Calibration curve 23.In the dead dear case study, silver diethyldithiocarbamateforms a colored solution when it binds with arsenic, what do we call substance like silver diethyldithiocarbamate? A. Secondary standard reagent B. Precipitating agent C. Chelating agent D. Primary standard reagent
21. What materials contain a precisely known concentration of a substance typically used in quantitative analysis? A. ACS grade Materials B. Chemical Standard Materials C. IUPAC Standard Materials D. PIPAC Standard Materials 22. Which type of curve is normally produced when plotting the change in the concentration of a specie of some function and the amount of reagent added? A. Titration curve B. Sigmoidal Curve C. Phase Transition curve D. Calibration curve 23.In the dead dear case study, silver diethyldithiocarbamateforms a colored solution when it binds with arsenic, what do we call substance like silver diethyldithiocarbamate? A. Secondary standard reagent B. Precipitating agent C. Chelating agent D. Primary standard reagent
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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21. What materials contain a precisely known concentration of a substance typically used in quantitative analysis?
A. ACS grade Materials
B. Chemical Standard Materials
C. IUPAC Standard Materials
D. PIPAC Standard Materials
22. Which type of curve is normally produced when plotting the change in the concentration of a specie of some function and the amount of reagent added?
A. Titration curve
B. Sigmoidal Curve
C. Phase Transition curve
D. Calibration curve
23.In the dead dear case study, silver diethyldithiocarbamateforms a colored solution when it binds with arsenic, what do we call substance like silver diethyldithiocarbamate?
A. Secondary standard reagent
B. Precipitating agent
C. Chelating agent
D. Primary standard reagent
24.What important analytical method is employed that include analysis of standard reference materials when available, analysis by a different analytical method, analysis of “spiked” samples, and analysis of synthetic samples approximating the chemical composition of the test samples?
A. Checking for Analytical Sensitivity
B. Determining the Validity
C. Construction of Calibration curve
D. Identification of the Detection limit
25. It is considered to be the least effective control measure when it comes to minimizing danger in laboratory experimentation practice.
A. Elimination
B. Substitution
C. Administrative controls
D. Personal protective equipment
B. Chemical Standard Materials
C. IUPAC Standard Materials
D. PIPAC Standard Materials
22. Which type of curve is normally produced when plotting the change in the concentration of a specie of some function and the amount of reagent added?
A. Titration curve
B. Sigmoidal Curve
C. Phase Transition curve
D. Calibration curve
23.In the dead dear case study, silver diethyldithiocarbamateforms a colored solution when it binds with arsenic, what do we call substance like silver diethyldithiocarbamate?
A. Secondary standard reagent
B. Precipitating agent
C. Chelating agent
D. Primary standard reagent
24.What important analytical method is employed that include analysis of standard reference materials when available, analysis by a different analytical method, analysis of “spiked” samples, and analysis of synthetic samples approximating the chemical composition of the test samples?
A. Checking for Analytical Sensitivity
B. Determining the Validity
C. Construction of Calibration curve
D. Identification of the Detection limit
25. It is considered to be the least effective control measure when it comes to minimizing danger in laboratory experimentation practice.
A. Elimination
B. Substitution
C. Administrative controls
D. Personal protective equipment
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