QUESTIONS 1. Identify cach of the following as measurements of length, area, volume, mass, density, time, or temperature: (a) ns, (b) 10.0 kg/m', (c) 1.2 pm, (d) 750 km2, (e) 83 K, and (f) 4.0 mm'. of cigniGicont igures

Chemistry
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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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Experiments for Chemistry - The Central Science (Custom Edition for HCC CHEM 1111) ISBN: 9780136688051
Del
pi t d Laboratory Experiments 15
QUESTIONS
1. Identify each of the following as measurements of length, area, volume, mass, density, time, or temperature:
(a) ns, (b) 10.0 kg/m³, (c) 1.2 pm, (d) 750 km², (e) 83 K, and (f) 4.0 mm³.
2. Carry out the following operations and express the answer with the appropriate number of significant figures
and units: (a) (5.231 mm)(6.1 mm), (b) 72.3 g/1.5 mL, (c) 12.21 g+0.0132 g, and (d) 31.03 g+ 12 mg.
3. Drug medications are often prescribed on the basis of body mass. The adult dosage of Elixophyllin, a drug
used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 160 lb person.
4. A man who is 5 ft 10 in, tall weighs 160. Ib. What is his height in centimeters and his mass in kilograms?
5. Determine the boiling point of water at 672 mm Hg.
6. A pipet delivers 9.98 g of water at 19 °C. What volume does the pipet deliver?
7. A pipet delivers 10.4 mL, 10.2 mL, 10.8 mL, and 10.6 mL in consecutive trials. Find the mean volume and
the average deviation from the mean.
8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the watch
glass and sample in grams?
Copyright © 2018 Pearson Education, Inc.
Transcribed Image Text:Del pi t d Laboratory Experiments 15 QUESTIONS 1. Identify each of the following as measurements of length, area, volume, mass, density, time, or temperature: (a) ns, (b) 10.0 kg/m³, (c) 1.2 pm, (d) 750 km², (e) 83 K, and (f) 4.0 mm³. 2. Carry out the following operations and express the answer with the appropriate number of significant figures and units: (a) (5.231 mm)(6.1 mm), (b) 72.3 g/1.5 mL, (c) 12.21 g+0.0132 g, and (d) 31.03 g+ 12 mg. 3. Drug medications are often prescribed on the basis of body mass. The adult dosage of Elixophyllin, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 160 lb person. 4. A man who is 5 ft 10 in, tall weighs 160. Ib. What is his height in centimeters and his mass in kilograms? 5. Determine the boiling point of water at 672 mm Hg. 6. A pipet delivers 9.98 g of water at 19 °C. What volume does the pipet deliver? 7. A pipet delivers 10.4 mL, 10.2 mL, 10.8 mL, and 10.6 mL in consecutive trials. Find the mean volume and the average deviation from the mean. 8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the watch glass and sample in grams? Copyright © 2018 Pearson Education, Inc.
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