Homework Help is Here – Start Your Trial Now!
Science
Chemistry
1) The coefficient of variation CV% of the data set shown below is 20.3 19.4, 195, 196, 19.8, 20.1. b) 0.790 a) 0.125 c) 0.018 % d) 0.354

1) The coefficient of variation CV% of the data set shown below is 20.3 19.4, 195, 196, 19.8, 20.1. b) 0.790 a) 0.125 c) 0.018 % d) 0.354

Chemistry
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...
See similar textbooks
icon
Related questions
Question
Q 1 please
1) The coefficient of variation CV% of the data set shown below is 19.4, 195, 196, 19.8, 20.1. 20.3 b) 0.790 a) 0.125 c) 0.018 % 2) The error that can be corrected by calibration: a) systematic error b) gross error c) random d) rando error 3) One of the following indicators can be used to determine the end point of the second first proton in H.PO.: a) Eriochrome Black T b) Phenolphthalein c) Methyl orange d) Chromate ion 4) Ag+ Ch AgCl. This is an example of a) acid-base titration. b) precipitation titration. c) redox titration. d) complexation titration 5) Ag+ (SCN) alacid-base titration. b) Volhard method. d) 0.354 AgSCN) This is an example of c) Fajan method. d) Moher method. 6) The indicator that used in Fjan method is a) dichlorofluorescein b) murxide c) ferric ions (Fe) d) potassium chromate 7) the indicator that used in moher method MOHR method is a) Eriochrome Black T b) murxide c) ferric ions(Fe) d) potassium chromate 8) VOHLARD method for determination of chloride ions in the solution is an example of a) acid-base titration. b) back titration. c) redox titration. d) complexation titration 9) The color of Eriochrome Black T changed (from to) in comlexometric titration of EDTA slat mixture of Ca² and Mg 2+ a) green to yellow b) blue to pink d) pink to colorless c) wine red to bluc 10) Which of these statements is not TRUE? a-Phenolephtalene indicator pink in basic media b-Methyl orange used to identify the first end c-The primary standard for EDTA is ZnSO4 solution d-EDTA considered as triprotic acid at pH=12 point of H₂PO4.
Transcribed Image Text:1) The coefficient of variation CV% of the data set shown below is 19.4, 195, 196, 19.8, 20.1. 20.3 b) 0.790 a) 0.125 c) 0.018 % 2) The error that can be corrected by calibration: a) systematic error b) gross error c) random d) rando error 3) One of the following indicators can be used to determine the end point of the second first proton in H.PO.: a) Eriochrome Black T b) Phenolphthalein c) Methyl orange d) Chromate ion 4) Ag+ Ch AgCl. This is an example of a) acid-base titration. b) precipitation titration. c) redox titration. d) complexation titration 5) Ag+ (SCN) alacid-base titration. b) Volhard method. d) 0.354 AgSCN) This is an example of c) Fajan method. d) Moher method. 6) The indicator that used in Fjan method is a) dichlorofluorescein b) murxide c) ferric ions (Fe) d) potassium chromate 7) the indicator that used in moher method MOHR method is a) Eriochrome Black T b) murxide c) ferric ions(Fe) d) potassium chromate 8) VOHLARD method for determination of chloride ions in the solution is an example of a) acid-base titration. b) back titration. c) redox titration. d) complexation titration 9) The color of Eriochrome Black T changed (from to) in comlexometric titration of EDTA slat mixture of Ca² and Mg 2+ a) green to yellow b) blue to pink d) pink to colorless c) wine red to bluc 10) Which of these statements is not TRUE? a-Phenolephtalene indicator pink in basic media b-Methyl orange used to identify the first end c-The primary standard for EDTA is ZnSO4 solution d-EDTA considered as triprotic acid at pH=12 point of H₂PO4.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Sample Preparation in Analytical Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS