Chemistry In Context
9th Edition
ISBN: 9781259638145
Author: Fahlman, Bradley D., Purvis-roberts, Kathleen, Kirk, John S., Bentley, Anne K., Daubenmire, Patrick L., ELLIS, Jamie P., Mury, Michael T., American Chemical Society
Publisher: Mcgraw-hill Education,
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Question
Chapter 14, Problem 10Q
Interpretation Introduction
Interpretation:
Meaning of “chain of custody” for evidence collected from a crime scene has to be described.
Concept Introduction:
Chain of custody:
In maintaining a chain of custody, all the persons who control the evidences in a crime must be accounted for.
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A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of
dimethyl sulfoxide, ethanolamine, tetrahydrofuran, methyl acetate, and diethylamine.
The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety
Data Sheets (MSDS), the chemist finds the following information:
liquid
density
dimethyl sulfoxide
1.1
mL
1.0
mL
ethanolamine
tetrahydrofuran
0.89
mL
methyl acetate
0.93
mL
diethylamine
0.71
mL
Next, the chemist measures the volume of the unknown liquid as 1655. cm and the mass of the unknown liquid as 1.55 kg.
Calculate the density of the liquid. Round
0g / mL
your answer to 3 significant digits.
O yes
Given the data above, is it possible to
identify the liquid?
O no
O dimethyl sulfoxide
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O methyl acetate
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If it is possible to identify the…
Chapter 14 Solutions
Chemistry In Context
Ch. 14 - Prob. 14.1YTCh. 14 - Prob. 14.2YTCh. 14 - Prob. 14.3YTCh. 14 - Prob. 14.4YTCh. 14 - Prob. 14.5YTCh. 14 - Prob. 14.6YTCh. 14 - Prob. 14.7YTCh. 14 - a. Write balanced equations for the combustion of...Ch. 14 - Prob. 14.9YTCh. 14 - Prob. 14.10YT
Ch. 14 - Prob. 14.11YTCh. 14 - Prob. 14.12YTCh. 14 - Prob. 14.13YTCh. 14 - Prob. 14.14YTCh. 14 - Prob. 14.15YTCh. 14 - Prob. 14.16YTCh. 14 - Prob. 14.17YTCh. 14 - Scientific Practices Solar Charging Station Using...Ch. 14 - Prob. 14.19YTCh. 14 - Prob. 14.20YTCh. 14 - Prob. 1QCh. 14 - Prob. 2QCh. 14 - Prob. 3QCh. 14 - Prob. 4QCh. 14 - Prob. 5QCh. 14 - Prob. 8QCh. 14 - Prob. 10QCh. 14 - In surveying a crime scene, how do forensic...Ch. 14 - Prob. 12QCh. 14 - Prob. 13QCh. 14 - Prob. 14QCh. 14 - Prob. 15QCh. 14 - Prob. 16QCh. 14 - Prob. 17QCh. 14 - Prob. 18QCh. 14 - Could you discriminate between the three compounds...Ch. 14 - Prob. 20QCh. 14 - A handgun is found at a crime scene, but the...Ch. 14 - Prob. 23QCh. 14 - The smallest resolution that a microscope can...Ch. 14 - Prob. 25QCh. 14 - A forensic scientist sprayed a Luminol solution on...Ch. 14 - Prob. 28QCh. 14 - Prob. 29QCh. 14 - Prob. 30Q
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