Laboratory Experiments for Chemistry: The Central Science (14th Edition)

14th Edition

ISBN: 9780134566207

Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus, John H. Nelson, Kenneth C. Kemp

Publisher: PEARSON

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Textbook Question

Chapter 1, Problem 37E

To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She then measured the mass of the sample, finding that it weighed 38.5g. She knew that the sub-stance had to be either isopropyl alcohol (density 0.785g/mL) or toluene (density 0.866g/mL). What are the calculated density and the probable identity of the substance?
An experiment requires 45.0 g of ethylene glycol, a liquid whose density is 1.114g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Is a graduated cylinder such as that shown in figure 1.12 likely to afford the accuracy of measurement needed?
A cubic piece of metal measures 5.00 cm on each edge. If the metal is nickel, whose density is 8.90g/cm³, what is the mass of the cube?

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Chapter 1, Problem 36E

Chapter 1, Problem 38E

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Chapter 1 Solutions

Laboratory Experiments for Chemistry: The Central Science (14th Edition)

Ch. 1.2 - Practice Exercise 1 Which of the following is the...Ch. 1.2 - Aspirin is composed of 60.0% carbon, 4.5%...Ch. 1.5 - Practice Exercise 1 Which of the following weights...Ch. 1.5 - Practice Exercise 2 How many picometers are there...Ch. 1.5 - Practice Exercise 1 Using Wolfram Alpha...Ch. 1.5 - Practice Exercise 2 Ethylene glycol, the major...Ch. 1.5 - Practice Exercise 1 Platinum, Pt. is one of the...Ch. 1.5 - Practice Exercise 2 Calculate the density of a...Ch. 1.5 - Which of the following objects has the greatest...Ch. 1.5 - Prob. 1.5.2PE

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