GENERAL CHEMISTRY(LL)-W/MASTERINGCHEM.
11th Edition
ISBN: 9780134566030
Author: Petrucci
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 2, Problem 77IAE
Interpretation Introduction
Interpretation:
The
Concept introduction:
The average mass of an atom of element depends on the atomic masses of its isotopes and their natural abundances.
For example, if an atom X has two isotopes A and B respectively. The average atomic mass of atom X can be calculated as follows:
Here, MA is mass of isotope A, MB is mass of isotope B, %A is percent
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
GENERAL CHEMISTRY(LL)-W/MASTERINGCHEM.
Ch. 2 - When an iron object rusts, its mass increases....Ch. 2 - When a strip of magnesium metal is burned in air...Ch. 2 - A 0.406 g sample of magnesium reacts with oxygen,...Ch. 2 - A 1.446 g sample of potassium reacts with 8.178 g...Ch. 2 - When a solid mixture consisting of 10.500 g...Ch. 2 - Within the limits of experimental error, showthat...Ch. 2 - In Example 2-1, we established flat the mass ratio...Ch. 2 - Samples of pure carbon weighing 3.62, 5.91, and...Ch. 2 - In one experiment sodium was allowed to react with...Ch. 2 - When 3.06 g hydrogen was allowed to react with an...
Ch. 2 - In one experiment, he burning of 0.312 g sulfur...Ch. 2 - In one experiment, the reaction of 1.00 g mercury...Ch. 2 - Sulfur forms two compounds with oxygen. In...Ch. 2 - Phosphorus forms two compounds chlorine.In be...Ch. 2 - The following data were obtained for compounds of...Ch. 2 - The following data were obtained for compounds of...Ch. 2 - There two oxide of copper. One oxide has 20%...Ch. 2 - The two oxides of carbon described on page 38 were...Ch. 2 - The following observations were made for a series...Ch. 2 - In an experiment similar to that described in...Ch. 2 - Prob. 21ECh. 2 - Prob. 22ECh. 2 - The following radioactive isotopes have...Ch. 2 - For the isotope H202g , express the percentage of...Ch. 2 - Complete the following table. What minimum amount...Ch. 2 - Arrange the following species order of increasing...Ch. 2 - For the atom 108Pd with mass 107.90389 u,...Ch. 2 - For the ion R225a24 with a mass of 228.030 u,...Ch. 2 - An isotope of silver has a mass that is 6.68374...Ch. 2 - Prob. 30ECh. 2 - The following data on isotopic masses are from a...Ch. 2 - The following ratios of masses were obtained with...Ch. 2 - Which of the following species has a. equal...Ch. 2 - Prob. 34ECh. 2 - An isotope with mass numbers 44 has four more...Ch. 2 - Identify the isotope X that has one more neutron...Ch. 2 - Iodine has many radioactive isotopes.Iodine-123 is...Ch. 2 - Iodine-131 is a radioactive isotope that has...Ch. 2 - Americium-241 is aradioactive isotope that is used...Ch. 2 - Some foods are made safer to eat by being exposed...Ch. 2 - Which statement is probably true concerning the...Ch. 2 - The mass of e carbon-12 atom is taken to be...Ch. 2 - Magnesium has three naturally occurring isotopes....Ch. 2 - There are four naturally occurring isotopes of...Ch. 2 - The two naturally occurring isotopes of silver...Ch. 2 - Gallium has two naturally occurring isotopes. One...Ch. 2 - The three naturally occurring isotopes of...Ch. 2 - Use the conventional atomic mass of boron to...Ch. 2 - A mass spectrum of germanium displayed peaks at...Ch. 2 - Prob. 50ECh. 2 - Refer to the periodic table inside the front cover...Ch. 2 - Refer to the periodic table inside the front cover...Ch. 2 - Prob. 53ECh. 2 - Prob. 54ECh. 2 - Prob. 55ECh. 2 - Prob. 56ECh. 2 - Determine a. the number of moles of Zn in a 415.0...Ch. 2 - Determine a. the number of Kr atoms in a 5.25 mg...Ch. 2 - How many Cu atoms are present in a piece of...Ch. 2 - How many atoms are present in a 50.0 cm2 sample of...Ch. 2 - How many 204Pb atoms are present in a piece of...Ch. 2 - A particular lead-cadmium alloy is 8.0% cadmium by...Ch. 2 - Prob. 63ECh. 2 - During a severe episode of air pollution, the...Ch. 2 - Without doing detailed calculations, determine...Ch. 2 - Prob. 66ECh. 2 - A solution was prepared by dissolving 2.50 g...Ch. 2 - Prob. 68IAECh. 2 - Fluorine has a single atomic species, 19F ....Ch. 2 - Prob. 70IAECh. 2 - Use the fundamental definitions and statements...Ch. 2 - In each case, identify the element in question. a....Ch. 2 - Determine the only possible +2 ion for which the...Ch. 2 - Prob. 74IAECh. 2 - Suppose we redefined the atomic mass scale by...Ch. 2 - The two naturally occurring isotopes of nitrogen...Ch. 2 - Prob. 77IAECh. 2 - Germanium has three major naturally occurring...Ch. 2 - From densities of the lines in the mass spectrum...Ch. 2 - The two naturally occurring isotopes of chlorine...Ch. 2 - How many atoms are present in a 1.50 m length of...Ch. 2 - Monel metal is a corrosion-resistant copper-nickel...Ch. 2 - Deuterium, 2H(2.0140u) , is sometimes used to...Ch. 2 - An alloy that melts at about the boiling pointof...Ch. 2 - A particular silver solder (used in the...Ch. 2 - Prob. 86IAECh. 2 - Prob. 87IAECh. 2 - Atoms are spherical and so when silver atoms pack...Ch. 2 - The data Lavoisier obtained in the experiment...Ch. 2 - Prob. 90FPCh. 2 - Prob. 91FPCh. 2 - German chemist Fritz Haber proposed paying off the...Ch. 2 - Mass spectrometry is one of the most versatile and...Ch. 2 - In your own words, define or explain these terms...Ch. 2 - Briefly describe a. the law of conservation of...Ch. 2 - Explain the important distinctions between each...Ch. 2 - A certain element contains one atom of mass 10.013...Ch. 2 - When 10.0 g zinc and 8.0 g sulfur are allowed to...Ch. 2 - Prob. 99SAECh. 2 - An attempt was made to determine he atomic mass of...Ch. 2 - Cathode rays a. may be positively or negatively...Ch. 2 - The scattering of a particles by thin metal foils...Ch. 2 - Prob. 103SAECh. 2 - Which of the following is not a fundamental...Ch. 2 - Which of the following scientists did not...Ch. 2 - Prob. 106SAECh. 2 - Prob. 107SAECh. 2 - Prob. 108SAECh. 2 - Prob. 109SAECh. 2 - The two species that have the same number of...Ch. 2 - Prob. 111SAECh. 2 - Prob. 112SAECh. 2 - A 5.585-kg sample of iron (Fe) contains a.10.0...Ch. 2 - A 91.84 g sample of Ti contains (a) 4.175 mol of...Ch. 2 - There are three common iron-oxygen compounds. The...Ch. 2 - The four naturally occurring isotopes of strontium...Ch. 2 - Prob. 117SAECh. 2 - Prob. 118SAE
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
- Samples of compound X, Y, and Z are analyzed, with results shown here. Compound Description Mass of Carbon Mass of Hydrogen X clear, colorless, liquid with strong odor 1.776 g 0.148 g Y clear, colorless, liquid with strong odor 1.974 g 0.329 g Z clear, colorless, liquid with strong odor 7.812 g 0.651 g Do these data provide example(s) of the law of definite proportions, the law of multiple proportions, neither, or both? What do these data tell you about compounds X, Y, and Z?arrow_forwardIn what way are isotopes of a given element always different? In what way(s) are they always the same?arrow_forwardThere are 1.699 1022 atoms in 1.000 g of chlorine. Assume that chlorine atoms are spheres of radius 0.99 and that they are lined up side by side in a 0.5-g sample. How many miles in length is the line of chlorine atoms in the sample?arrow_forward
- 2.92 A candy manufacturer makes chocolate-covered cherries. Although all of the products look roughly the same, 3% of them are missing the cherry. The mass of the candy with a cherry is 18.5 g; those missing the cherry weigh only 6.4 g. (a) How would you compute the average mass of a box of 100 of these chocolate covered cherries from this manufacturer? (b) I low is this question analogous to the determination of atomic weights?arrow_forwardHydrazine, ammonia, and hydrogen azide al1 contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00 g of nitrogen for each compound is 1.44 101 g, 2.16 101 g, and 2.40 102 g, respectively. Show how these data illustrate the law of multiple proportions.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
- 2-35 The two most abundant naturally occurring isotopes of carbon are carbon-12 (98.90%, 12.000 amu) and carbon-13 (1.10%, 13.003 amu). From these abundances, calculate the atomic weight of carbon and compare your calculated value with that given in the Periodic Table.arrow_forwardOne of the best indications of a useful theory is that it raises more questions for further experimentation than it originally answered. Does this apply to Daltons atomic theory? Give examples.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningGeneral 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 by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher: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 by OpenStax (2015-05-04)
Chemistry
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:OpenStax
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Types of Matter: Elements, Compounds and Mixtures; Author: Professor Dave Explains;https://www.youtube.com/watch?v=dggHWvFJ8Xs;License: Standard YouTube License, CC-BY