Principles of Chemistry: A Molecular Approach (3rd Edition)
3rd Edition
ISBN: 9780321971944
Author: Nivaldo J. Tro
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 13SAQ
Determine the number of atoms in 1.85 mL of mercury (The density of mercury is 13.5 g/mL.)
a.
b.
c.
d.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Calculate the mass, in grams, of each sample.
a. 1.1 x 10 gold atoms
b. 2.82 x 102 helium atoms
c. 1.8 x 1023 lead atoms
d. 7.9 x 1021 uranium atoms
Calculate the mass (in grams) of a tungsten atom.
A. 1.107 x 10 - 26
B. 1.661 x 10 - 24 g
C. 3.054 x 10 22 g
D. 5.440 x 10 3g
A sample of aluminum contains 2.91 × 1022 atoms of aluminum. What is the mass of this sample? [Molar mass: Al= 26.98 g/mol]
A.
1.30 g
B.
1.08 × 1021 g
C.
7.85 × 1023g
D.
558 g
E.
0.767 g
Chapter 2 Solutions
Principles of Chemistry: A Molecular Approach (3rd Edition)
Ch. 2 - Prob. 2.1PCh. 2 - For Practice 2.2
Hydrogen and oxygen form both...Ch. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.5MPCh. 2 - Prob. 2.6PCh. 2 - For Practice 2.7 Calculate the amount of copper...Ch. 2 - Prob. 2.7MPCh. 2 - Prob. 2.8P
Ch. 2 - Prob. 2.8MPCh. 2 - For Practice 2.9
A titanium cube contains atoms....Ch. 2 - For More Practice 2.9
Find the number of atoms in...Ch. 2 - Prob. 1SAQCh. 2 - Prob. 2SAQCh. 2 - Q3. Which idea came out of Rutherford’s gold foil...Ch. 2 - A student re-creates the Millikan oil drop...Ch. 2 - Determine the number of protons and neutrons in...Ch. 2 - Prob. 6SAQCh. 2 - Prob. 7SAQCh. 2 - Prob. 8SAQCh. 2 - Prob. 9SAQCh. 2 - Prob. 10SAQCh. 2 - Prob. 11SAQCh. 2 - Prob. 12SAQCh. 2 - Determine the number of atoms in 1.85 mL of...Ch. 2 - A 20.0 g sample of an element contains 4.951023...Ch. 2 - 1. A hydrogen-filled balloon is ignited, and 1.50...Ch. 2 - 2. An automobile gasoline tank holds 21 kg of...Ch. 2 - 3. Two samples of carbon tetrachloride are...Ch. 2 - Prob. 4ECh. 2 - The mass ratio of sodium to fluorine in sodium...Ch. 2 - 6. Upon decomposition, one sample of magnesium...Ch. 2 - 7. Two different compounds containing and oxygen...Ch. 2 - 8. Palladium forms three different compounds with...Ch. 2 - Sulfur and oxygen form both sulfur dioxide and...Ch. 2 - 10. Sulfur and fluorine form several different...Ch. 2 - 11. Which statements are consistent with Dalton’s...Ch. 2 - Which statements are inconsistent with Dalton’s...Ch. 2 - 13. Which statements are consistent with...Ch. 2 - 14. Which statements are inconsistent with...Ch. 2 - A chemist in an imaginary universe, where...Ch. 2 - 16. Imagine a unit of charge called the zorg. A...Ch. 2 - Prob. 17ECh. 2 - 18. How many electrons does it take to equal the...Ch. 2 - Which statements about subatomic particles are...Ch. 2 - 20. Which statements about subatomic particles are...Ch. 2 - Write isotopic symbols of the form AZX for each...Ch. 2 - 22. Write isotopic symbols of the form X-A (e.g.,...Ch. 2 - 23. Determine the number of protons and the number...Ch. 2 - Determine the number of protons and the number of...Ch. 2 - 25. The amount of carbon-14 in artifacts and...Ch. 2 - Urarium-235 is used in nuclear fission. Determine...Ch. 2 - 27. Determine the number of protons and the number...Ch. 2 - Prob. 28ECh. 2 - Prob. 29ECh. 2 - Prob. 30ECh. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 - Prob. 33ECh. 2 - Prob. 34ECh. 2 - Prob. 35ECh. 2 - Determine whether or not each element is a...Ch. 2 - Prob. 37ECh. 2 - Prob. 38ECh. 2 - Prob. 39ECh. 2 - Prob. 40ECh. 2 - Prob. 41ECh. 2 - Prob. 42ECh. 2 - Prob. 43ECh. 2 - Prob. 44ECh. 2 - Prob. 45ECh. 2 - Prob. 46ECh. 2 - Prob. 47ECh. 2 - Prob. 48ECh. 2 - Prob. 49ECh. 2 - What is the mass of 9.711022 platinum atoms?Ch. 2 - Prob. 51ECh. 2 - Prob. 52ECh. 2 - Prob. 53ECh. 2 - Prob. 54ECh. 2 - Prob. 55ECh. 2 - Prob. 56ECh. 2 - A 7.3 g sample of HCN contains 0.290 g of H and...Ch. 2 - Prob. 58ECh. 2 - Prob. 59ECh. 2 - Prob. 60ECh. 2 - An a particle, 4He2+, has a mass of 4.00151 amu....Ch. 2 - Prob. 62ECh. 2 - Nuclei with the same number of neutrons but...Ch. 2 - Prob. 64ECh. 2 - Prob. 65ECh. 2 - Prob. 66ECh. 2 - Prob. 67ECh. 2 - Prob. 68ECh. 2 - Prob. 69ECh. 2 - Prob. 70ECh. 2 - Prob. 71ECh. 2 - Prob. 72ECh. 2 - Prob. 73ECh. 2 - Prob. 74ECh. 2 - Prob. 75ECh. 2 - Boron has only two naturally occurring isotopes....Ch. 2 - Prob. 77ECh. 2 - Prob. 78ECh. 2 - Prob. 79ECh. 2 - The U.S. Environmental Protection Agency (EPA)...Ch. 2 - Prob. 81ECh. 2 - Prob. 82ECh. 2 - Prob. 83ECh. 2 - Prob. 84ECh. 2 - Prob. 85ECh. 2 - Prob. 86ECh. 2 - 87. The ratio of the mass of O to the mass of N in...Ch. 2 - Prob. 88ECh. 2 - Prob. 89ECh. 2 - Suppose that one of Millikan’s oil drops had a...Ch. 2 - Prob. 91ECh. 2 - 92. As we say in the previous problem, lithium has...Ch. 2 - Prob. 93ECh. 2 - Prob. 94ECh. 2 - The atomic radii of the isotopes of an element are...
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.Similar questions
- The element silver (Ag) has two naturally occurring isotopes: 109 Ag and 107Ag with a mass of 106.905 u. Silver consists of 51.82% 107Ag and has an average atomic mass of 107.868 u. Calculate the mass of 109Ag.arrow_forwardCopper atoms. (a) What is the average mass of one copper atom? (b) Students in a college computer science class once sued the college because they were asked to calculate the cost of one atom and could not do it. But you are in a chemistry course, and you can do this. (See E. Felsenthal, Wall Street Journal, May 9, 1995.) If the cost of 2.0-mm diameter copper wire (99.9995% pure] is currently 41.70 for 7.0 g, what is the cost of one copper atom?arrow_forwardA fundamental idea of Daltons atomic theory is that atoms of an element can be neither created nor destroyed. We now know that this is not always true. Specifically, it is not true for uranium and lead atoms as they appear in nature. Are the numbers of these atoms increasing or decreasing? Explain.arrow_forward
- In 1886 Eugene Goldstein observed positively charged particles moving in the opposite direction to electrons in a cathode ray tube (illustrated below). From their mass, he concluded that these particles were formed from residual gas in the tube. For example, if the cathode ray tube contained helium, the canal rays consisted of He+ ions. Describe a process that could lead to these ions. Canal rays. In 1886, Eugene Goldstein detected a stream of particles traveling in the direction opposite to that of the negatively charged cathode rays (electrons). He called this stream of positive particles "canal rays:"arrow_forwardConsider an atom of 64Zn. (a) Calculate the density of the nucleus in grams per cubic centimeter, knowing that the nuclear radius is 4.8 106 nm and the mass of the 64Zn atom is 1.06 1022 g. (Recall that the volume of a sphere is [4/3] 3.) (b) Calculate the density of the space occupied by the electrons in the zinc atom, given that the atomic radius is 0.125 nm and the electron mass is 9.11 1028 g. (c) Having calculated these densities, what statement can you make about the relative densities of the parts of the atom?arrow_forwardConstant Composition of Compounds Two samples of sugar are decomposed into their constituent elements. One sample of sugar produces 18.0 g carbon, 3.0 g hydrogen, and 24.0 g oxygen; the other sample produces 24.0 g carbon, 4.0 g hydrogen, and 32.0 g oxygen. Find the ratio of carbon to hydrogen and the ratio of oxygen to hydrogen for each of the samples, and show they are consistent with the law of constant composition.arrow_forward
- Average Atomic Weight Part 1: Consider the four identical spheres below, each with a mass of 2.00 g. Calculate the average mass of a sphere in this sample. Part 2: Now consider a sample that consists of four spheres, each with a different mass: blue mass is 2.00 g, red mass is 1.75 g, green mass is 3.00 g, and yellow mass is 1.25 g. a Calculate the average mass of a sphere in this sample. b How does the average mass for a sphere in this sample compare with the average mass of the sample that consisted just of the blue spheres? How can such different samples have their averages turn out the way they did? Part 3: Consider two jars. One jar contains 100 blue spheres, and the other jar contains 25 each of red, blue, green, and yellow colors mixed together. a If you were to remove 50 blue spheres from the jar containing just the blue spheres, what would be the total mass of spheres left in the jar? (Note that the masses of the spheres are given in Part 2.) b If you were to remove 50 spheres from the jar containing the mixture (assume you get a representative distribution of colors), what would be the total mass of spheres left in the jar? c In the case of the mixture of spheres, does the average mass of the spheres necessarily represent the mass of an individual sphere in the sample? d If you had 80.0 grams of spheres from the blue sample, how many spheres would you have? e If you had 60.0 grams of spheres from the mixed-color sample, how many spheres would you have? What assumption did you make about your sample when performing this calculation? Part 4: Consider a sample that consists of three green spheres and one blue sphere. The green mass is 3.00 g, and the blue mass is 1.00 g. a Calculate the fractional abundance of each sphere in the sample. b Use the fractional abundance to calculate the average mass of the spheres in this sample. c How are the ideas developed in this Concept Exploration related to the atomic weights of the elements?arrow_forwardChlorine has two prominent isotopes,37Cl and35Cl . Which is more abundant? How do you know?arrow_forwardThe early alchemists used to do an experiment in which water was boiled for several days in a sealed glass container. Eventually. some solid residue would appear in die bottom of the flask, which was interpreted to mean that some of the water in the flask had been converted into earth. When Lavoisier repeated this experiment, he found that the water weighed the same before and after heating, and the mass of die flask plus the solid residue equaled the original mass of the flask. Were the alchemists correct? Explain what really happened. (This experiment is described in the article by A. F. Scott in Scientific American, January 1984.)arrow_forward
- Who discovered the nucleus? Describe the experiment that led to this discovery.arrow_forwardWhich elements conduct electricity? a. metals b. nonmetals c. metalloids d. ionsarrow_forwardProvide a reasonable estimate for the number of atoms in a 150-lb adult human. Use the information given in Table 20.2.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry for Today: General, Organic, and Bioche...
Chemistry
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Introductory Chemistry: An Active Learning Approa...
Chemistry
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Atomic Number, Atomic Mass, and the Atomic Structure | How to Pass ChemistryThe Nucleus: Crash Course Chemistry #1; Author: Crash Course;https://www.youtube.com/watch?v=FSyAehMdpyI;License: Standard YouTube License, CC-BY