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...
Related questions
Question
Question 55.
![12:51
1 Search
< Вack
hw6.pdf
19: How many atoms are in each
3.4 mol Cu, 9.7*103 mol C, 22.9 mol Hg, 0.215 mol Na
25: How many moles of tin atoms are in a pure tin cup with a mass of 38.1 g?
27: A pure gold coin contains 0.145 mol of gold. What is its mass?
33: A pure silver ring contains 0.0134 mmol (milimol) Ag. How many silver atoms does it
contain?
39: How many carbon atoms are in a diamond (pure carbon) with a mass of 38 mg?
41: How many titanium atoms are in a pure titanium bicycle frame with a mass of 1.28 kg?
47: Determine the number of moles of molecules (or formula units) in each sample.
38.2 g sodium chloride, 36.5 g nitrogen monoxide, 4.25 kg carbon dioxide,
2.71 mg carbon tetrachloride
51: A mothball, composed of naphthalene (C10H8), has a mass of 1.32 g. How many
naphthalene molecules does it contain?
55: A sugar crystal contains approximately 1.8*1017 sucrose (C12H22011) molecules. What is
its mass in milligrams?
59: Determine the number of moles of CI in 2.7 mol CaCI,
67: How many grams of Cl are in 38.0 g of each sample of chlorofluorocarbons (CFCS)?
CF2C12, CFCI3, C2F3C]3, CF3CI
73: A 1.912-g sample of calcium chloride is decomposed into its constituent elements and
found to contain 0.690 g Ca and 1.222 g Cl. Calculate the mass percent composition of Ca
and Cl in calcium chloride.
79: Calculate the mass percent composition of nitrogen in each compound
N20, NO, NO2, N2O5
87: A compound containing nitrogen and oxygen is decomposed in the laboratory and
produces 1.78 g of nitrogen and 4.05 g of oxygen. Calculate the empirical formula of the
compound
91: The rotten smell of a decaying animal carcass is partially due to a nitrogen-containing
compound called putrescine. Elemental analysis of putrescine indicates that it consists of
54.50% C, 13.73% H, and 31.77% N. Calculate the empirical formula of putrescine. (Hint:
Begin by assuming a 100-g sample and determining the mass of each element in that 100-g
sample.)
95: A 1.45-g sample of phosphorous burns in air and forms 2.57 g of a phosphorous oxide.
Calculate the empirical formula of the oxide. (Hint: Determine the mass of oxygen in the
2.57 g of phosphorous oxide by determining the difference in mass before and after the
phosphorous burns in air.)
93: These compounds are found in many natural flavors and scents. Calculate the empirical
formula for each compound
« Previous
Next >
15
000
Dashboard
Calendar
Тo Do
Notifications
Inbox](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F336e50e0-218e-48eb-89c9-432e278cc0fa%2Fac75edee-c3c4-4493-b17a-ac55cc7f690f%2Fujqp7y_processed.png&w=3840&q=75)
Transcribed Image Text:12:51
1 Search
< Вack
hw6.pdf
19: How many atoms are in each
3.4 mol Cu, 9.7*103 mol C, 22.9 mol Hg, 0.215 mol Na
25: How many moles of tin atoms are in a pure tin cup with a mass of 38.1 g?
27: A pure gold coin contains 0.145 mol of gold. What is its mass?
33: A pure silver ring contains 0.0134 mmol (milimol) Ag. How many silver atoms does it
contain?
39: How many carbon atoms are in a diamond (pure carbon) with a mass of 38 mg?
41: How many titanium atoms are in a pure titanium bicycle frame with a mass of 1.28 kg?
47: Determine the number of moles of molecules (or formula units) in each sample.
38.2 g sodium chloride, 36.5 g nitrogen monoxide, 4.25 kg carbon dioxide,
2.71 mg carbon tetrachloride
51: A mothball, composed of naphthalene (C10H8), has a mass of 1.32 g. How many
naphthalene molecules does it contain?
55: A sugar crystal contains approximately 1.8*1017 sucrose (C12H22011) molecules. What is
its mass in milligrams?
59: Determine the number of moles of CI in 2.7 mol CaCI,
67: How many grams of Cl are in 38.0 g of each sample of chlorofluorocarbons (CFCS)?
CF2C12, CFCI3, C2F3C]3, CF3CI
73: A 1.912-g sample of calcium chloride is decomposed into its constituent elements and
found to contain 0.690 g Ca and 1.222 g Cl. Calculate the mass percent composition of Ca
and Cl in calcium chloride.
79: Calculate the mass percent composition of nitrogen in each compound
N20, NO, NO2, N2O5
87: A compound containing nitrogen and oxygen is decomposed in the laboratory and
produces 1.78 g of nitrogen and 4.05 g of oxygen. Calculate the empirical formula of the
compound
91: The rotten smell of a decaying animal carcass is partially due to a nitrogen-containing
compound called putrescine. Elemental analysis of putrescine indicates that it consists of
54.50% C, 13.73% H, and 31.77% N. Calculate the empirical formula of putrescine. (Hint:
Begin by assuming a 100-g sample and determining the mass of each element in that 100-g
sample.)
95: A 1.45-g sample of phosphorous burns in air and forms 2.57 g of a phosphorous oxide.
Calculate the empirical formula of the oxide. (Hint: Determine the mass of oxygen in the
2.57 g of phosphorous oxide by determining the difference in mass before and after the
phosphorous burns in air.)
93: These compounds are found in many natural flavors and scents. Calculate the empirical
formula for each compound
« Previous
Next >
15
000
Dashboard
Calendar
Тo Do
Notifications
Inbox
Expert Solution
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 2 steps
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
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY