15. Capillary columns are open tubular columns constructed from which of the following materials? a) Glass b) Metal c) Stainless steel d) Fused silica 16. The Calcium Ca² (40.08 g/mol) in a 200 ml sample was precipitated and ignited to give CaO (56.08 g/mol) a weight of 0.1132 g Calculate the mass of Ca/100 ml? a) 40.38 b) 0.040 c) 46.04 d) 33.32 17. The difference between the experimental value and the true value is called: a) relative error b) precision c) accuracy d) absolute error
15. Capillary columns are open tubular columns constructed from which of the following materials? a) Glass b) Metal c) Stainless steel d) Fused silica 16. The Calcium Ca² (40.08 g/mol) in a 200 ml sample was precipitated and ignited to give CaO (56.08 g/mol) a weight of 0.1132 g Calculate the mass of Ca/100 ml? a) 40.38 b) 0.040 c) 46.04 d) 33.32 17. The difference between the experimental value and the true value is called: a) relative error b) precision c) accuracy d) absolute error
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter15: Equilibria Of Other Reaction Classes
Section: Chapter Questions
Problem 51E: Magnesium metal (a component of alloys used in aircraft and a reducing agent used in the production...
Related questions
Question
Q15 and Q16 and Q17 please
![15. Capillary columns are open tubular columns constructed from which of
the following materials?
a) Glass
b) Metal
c) Stainless steel
d) Fused silica
16. The Calcium Ca2 (40.08 g/mol) in a 200 ml sample was precipitated
and ignited to give CaO (56.08 g/mol) a weight of 0.1132 g Calculate
the mass of Ca/100 ml?
a) 40.38
b) 0,040
c) 46.04
d) 33.32
17. The difference between the experimental value and the true value is
called:
a) relative error b) precision c) accuracy d) absolute error
18.A 500 ml of water sample is found to contain 0.0014 g of CaCO (M Wt
100 g/mol). Calculate the concentration of CaCO, in parts per million
(ppm).
a) 2.80
b) 1.4 x 10²
c) 5.60
d) 1.40
19. Given a 7.50 x 10 M solution of KMnO, that has a transmittance of
36.4% when measured in a 1.0 cm cell at a wavelength of 525 nm.
Calculate the absorbance of this solution
a) 191.1
b) 0.439
c) 273x10
d) 32 x 10
20. Calculate the molar absorbtivity of the above KMnO, solution:
a) 584 cm'mol L
b) 585 x 10 cmmor L
c) 25.48 x 10 cm'mol L
d) 1.87 x 10 cm mot
21. In Gas-liquid phase chromatography, the stationary phase is composed
and the mobile phase is made of
of
a Solid liquid
b)Liquid liquid
c)Liquid gas
d) Solid, gas](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd4126e4c-40b0-4a06-9554-0533f6504426%2F87132a4f-0d34-4c84-be0e-245ab13cbd70%2Fi4c41c8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:15. Capillary columns are open tubular columns constructed from which of
the following materials?
a) Glass
b) Metal
c) Stainless steel
d) Fused silica
16. The Calcium Ca2 (40.08 g/mol) in a 200 ml sample was precipitated
and ignited to give CaO (56.08 g/mol) a weight of 0.1132 g Calculate
the mass of Ca/100 ml?
a) 40.38
b) 0,040
c) 46.04
d) 33.32
17. The difference between the experimental value and the true value is
called:
a) relative error b) precision c) accuracy d) absolute error
18.A 500 ml of water sample is found to contain 0.0014 g of CaCO (M Wt
100 g/mol). Calculate the concentration of CaCO, in parts per million
(ppm).
a) 2.80
b) 1.4 x 10²
c) 5.60
d) 1.40
19. Given a 7.50 x 10 M solution of KMnO, that has a transmittance of
36.4% when measured in a 1.0 cm cell at a wavelength of 525 nm.
Calculate the absorbance of this solution
a) 191.1
b) 0.439
c) 273x10
d) 32 x 10
20. Calculate the molar absorbtivity of the above KMnO, solution:
a) 584 cm'mol L
b) 585 x 10 cmmor L
c) 25.48 x 10 cm'mol L
d) 1.87 x 10 cm mot
21. In Gas-liquid phase chromatography, the stationary phase is composed
and the mobile phase is made of
of
a Solid liquid
b)Liquid liquid
c)Liquid gas
d) Solid, gas
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
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.Recommended textbooks for you
![Chemistry by OpenStax (2015-05-04)](https://www.bartleby.com/isbn_cover_images/9781938168390/9781938168390_smallCoverImage.gif)
Chemistry by OpenStax (2015-05-04)
Chemistry
ISBN:
9781938168390
Author:
Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:
OpenStax
![Chemistry & Chemical Reactivity](https://www.bartleby.com/isbn_cover_images/9781337399074/9781337399074_smallCoverImage.gif)
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
![Chemistry & Chemical Reactivity](https://www.bartleby.com/isbn_cover_images/9781133949640/9781133949640_smallCoverImage.gif)
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
![Chemistry by OpenStax (2015-05-04)](https://www.bartleby.com/isbn_cover_images/9781938168390/9781938168390_smallCoverImage.gif)
Chemistry by OpenStax (2015-05-04)
Chemistry
ISBN:
9781938168390
Author:
Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:
OpenStax
![Chemistry & Chemical Reactivity](https://www.bartleby.com/isbn_cover_images/9781337399074/9781337399074_smallCoverImage.gif)
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
![Chemistry & Chemical Reactivity](https://www.bartleby.com/isbn_cover_images/9781133949640/9781133949640_smallCoverImage.gif)
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
![Introductory Chemistry: A Foundation](https://www.bartleby.com/isbn_cover_images/9781337399425/9781337399425_smallCoverImage.gif)
Introductory Chemistry: A Foundation
Chemistry
ISBN:
9781337399425
Author:
Steven S. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
![Principles of Modern Chemistry](https://www.bartleby.com/isbn_cover_images/9781305079113/9781305079113_smallCoverImage.gif)
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning