Chemistry
4th Edition
ISBN: 9780078021527
Author: Julia Burdge
Publisher: McGraw-Hill Education
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Question
Chapter 2, Problem 68QP
Interpretation Introduction
Interpretation:
Allotropes and the difference between allotropes and isotopes are to be explained.
Concept introduction:
The different variations in the physical form of an element are the allotropes of an element.
The different variations of an element in which the number of protons is the same but the number of neutrons is different are the
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Students have asked these similar questions
A certain element XX has four isotopes.
5.845% of XX has a mass of 53.93961amuamu.
91.75% of XX has a mass of 55.93494amuamu.
2.123% of XX has a mass of 56.93539amuamu.
0.2820% of XX has a mass of 57.93328amuamu.
What is the average atomic mass of element XX?
Part B
A certain element X has four isotopes.
• 4.350% of X has a mass of 49.94605 amu.
• 83.79% of X has a mass of 51.94051 amu.
• 9.500% of X has a mass of 52.94065 amu.
• 2.360% of X has a mass of 53.93888 amu.
What is the average atomic mass of element X?
Express your answer numerically to four significant figures.
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52.00 amu
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Previous Answers
Correct
Part C
What is the identity of element X from Part B?
Express your answer as a chemical symbol.
Naturally occurring uranium consists of two isotopes, whose masses are shown below:
Isotope
Mass
U-235
235.044 amu
U-238
238.051 amu
U-238 is naturally the most abundant form of uranium; however, only U-235 can be used as fuel in a nuclear reactor, so uranium for us in the nuclear industry must be enriched in this isotope. If a sample of enriched uranium has an atomic weight of 235.684 amu, what percentage of U-235 is present?
Chapter 2 Solutions
Chemistry
Ch. 2.1 - Practice Problem ATTEMPT
In each case, calculate...Ch. 2.1 - Practice Problem BUILD
(a) Two of the simplest...Ch. 2.1 - Practice Problem CONCEPTUALIZE
Which of the...Ch. 2.1 - For the two compounds pictured, evaluate the...Ch. 2.1 - Prob. 2CPCh. 2.2 - Practice ProblemATTEMPT How many protons,...Ch. 2.2 - Practice ProblemBUILD Give the correct symbols to...Ch. 2.2 - Prob. 1PPCCh. 2.3 - 2.3.1 How many neutrons are there in an atom of
Ch. 2.3 - Prob. 2CP
Ch. 2.3 - Practice ProblemATTEMPT The atomic masses of the...Ch. 2.3 - Practice ProblemBUILD The average atomic mass of...Ch. 2.3 - Practice Problem CONCEPTUALIZE
The following...Ch. 2.4 - Which of the following series of elemental symbols...Ch. 2.4 - 2.4.2 Which of the following elements would you...Ch. 2.4 - Practice Problem ATTEMPT
Name the following ionic...Ch. 2.4 - Practice Problem BUILD
Name the following ionic...Ch. 2.4 - Practice ProblemCONCEPTUALIZE The diagram...Ch. 2.5 - Boron has two naturally occurring isotopes, which...Ch. 2.5 - 2.5.2 The two naturally occurring isotopes of...Ch. 2.5 - Practice Problem ATTEMPT
Deduce the formulas of...Ch. 2.5 - Practice ProblemBUILD Deduce the formulas of the...Ch. 2.5 - Practice Problem CONCEPTUALIZE
The diagram...Ch. 2.6 - Prob. 1PPACh. 2.6 - Practice ProblemBUILD Name the following species:...Ch. 2.6 - Prob. 1PPCCh. 2.6 - Prob. 1CPCh. 2.6 - Prob. 2CPCh. 2.6 - Prob. 3CPCh. 2.6 - 2.6.4 What is the formula of nickel(II) nitrate...Ch. 2.6 - Prob. 5CPCh. 2.6 - Prob. 6CPCh. 2.7 - Practice ProblemATTEMPT Chloroform was used as an...Ch. 2.7 - Practice ProblemBUILD Write the molecular formula...Ch. 2.7 - Prob. 1PPCCh. 2.7 - Prob. 1CPCh. 2.7 - 2.7.2 What is the name of the compound...Ch. 2.7 - What is the correct formula for the compound...Ch. 2.7 - 2.7.4 What is the empirical formula of the...Ch. 2.8 - Practice Problem ATTEMPT
Name the following...Ch. 2.8 - Practice ProblemBUILD Name the following binary...Ch. 2.8 - Practice Problem CONCEPTUALIZE
Name the binary...Ch. 2.9 - Practice ProblemATTEMPT Give the molecular formula...Ch. 2.9 - Practice ProblemBUILD Give the molecular formula...Ch. 2.9 - Prob. 1PPCCh. 2.10 - Practice ProblemATTEMPT Determine the formula of...Ch. 2.10 - Practice ProblemBUILD Determine the formula of...Ch. 2.10 - Practice ProblemCONCEPTUALIZE Referring to the...Ch. 2.11 - Practice Problem ATTEMPT
Write empirical formulas...Ch. 2.11 - Practice ProblemBUILD For which of the following...Ch. 2.11 - Practice ProblemCONCEPTUALIZE Which of the...Ch. 2 - Prob. 1KSPCh. 2 - Prob. 2KSPCh. 2 - Prob. 3KSPCh. 2 - What is the correct formula for phosphorus...Ch. 2 - What are the hypotheses on which Dalton's atomic...Ch. 2 - State the laws of definite proportions and...Ch. 2 - Prob. 3QPCh. 2 - Prob. 4QPCh. 2 - 2.5 Sulfur reacts with fluorine to produce three...Ch. 2 - 2.6 Both and contain only iron and oxygen. The...Ch. 2 - For the two compounds pictured, evaluate the...Ch. 2 - 2.8 For the two compounds pictured, evaluate the...Ch. 2 - Prob. 9QPCh. 2 - Prob. 10QPCh. 2 - Prob. 11QPCh. 2 - Describe the contributions of the following...Ch. 2 - 2.13 Describe the experimental basis for believing...Ch. 2 - The diameter of a neutral helium atom is about 1 ×...Ch. 2 - Prob. 15QPCh. 2 - Prob. 16QPCh. 2 - Prob. 17QPCh. 2 - Prob. 18QPCh. 2 - Prob. 19QPCh. 2 - 2.20 What is the mass number of an iron atom that...Ch. 2 - Prob. 21QPCh. 2 - 2.22 For each of the following species, determine...Ch. 2 - 2.23 Indicate the number of protons, neutrons, and...Ch. 2 - Prob. 24QPCh. 2 - Prob. 25QPCh. 2 - 2.26 Determine the mass number of (a) a boron atom...Ch. 2 - Prob. 27QPCh. 2 - Prob. 28QPCh. 2 - What is the periodic table, and what is its...Ch. 2 - 2.30 State two differences between a metal and a...Ch. 2 - Prob. 31QPCh. 2 - Give two examples of each of the following: (a)...Ch. 2 - Prob. 33QPCh. 2 - Prob. 34QPCh. 2 - Prob. 35QPCh. 2 - Prob. 36QPCh. 2 - Prob. 37QPCh. 2 - Prob. 38QPCh. 2 - Prob. 39QPCh. 2 - Prob. 40QPCh. 2 - Prob. 41QPCh. 2 - Prob. 42QPCh. 2 - Prob. 43QPCh. 2 - Prob. 44QPCh. 2 - The atomic masses of 204 Pb ( 1 .4 percent ) . 206...Ch. 2 - Prob. 46QPCh. 2 - Prob. 47QPCh. 2 - 2.48 What is the mass in grams of 13.2 amu?
Ch. 2 - Prob. 49QPCh. 2 - Prob. 50QPCh. 2 - Prob. 51QPCh. 2 - Prob. 52QPCh. 2 - Prob. 53QPCh. 2 - Prob. 54QPCh. 2 - Prob. 55QPCh. 2 - Prob. 56QPCh. 2 - Prob. 57QPCh. 2 - Prob. 58QPCh. 2 - Prob. 59QPCh. 2 - Prob. 60QPCh. 2 - 2.61 Name the following compounds:
Ch. 2 - Prob. 62QPCh. 2 - Prob. 63QPCh. 2 - Prob. 64QPCh. 2 - Prob. 65QPCh. 2 - Prob. 66QPCh. 2 - Prob. 67QPCh. 2 - Prob. 68QPCh. 2 - Prob. 69QPCh. 2 - Prob. 70QPCh. 2 - Prob. 71QPCh. 2 - Prob. 72QPCh. 2 - Prob. 73QPCh. 2 - Prob. 74QPCh. 2 - Prob. 75QPCh. 2 - Prob. 76QPCh. 2 - Prob. 77QPCh. 2 - Prob. 78QPCh. 2 - Prob. 79QPCh. 2 - Prob. 80QPCh. 2 - Prob. 81QPCh. 2 - Prob. 82QPCh. 2 - Prob. 83QPCh. 2 - Prob. 84QPCh. 2 - Prob. 85QPCh. 2 - Prob. 86QPCh. 2 - Prob. 87APCh. 2 - Prob. 88APCh. 2 - Prob. 89APCh. 2 - One isotope of a metallic element has mass number...Ch. 2 - Prob. 91APCh. 2 - Prob. 92APCh. 2 - 2.93 What is wrong with or ambiguous about the...Ch. 2 - Prob. 94APCh. 2 - Prob. 95APCh. 2 - Prob. 96APCh. 2 - Prob. 97APCh. 2 - Prob. 98APCh. 2 - Prob. 99APCh. 2 - Prob. 100APCh. 2 - Prob. 101APCh. 2 - Prob. 102APCh. 2 - Prob. 103APCh. 2 - Determine the molecular and empirical formulas of...Ch. 2 - Prob. 105APCh. 2 - Prob. 106APCh. 2 - The Group 1B metals . Cu, Ag, and Au, are called...Ch. 2 - Prob. 108APCh. 2 - Prob. 109APCh. 2 - Prob. 110APCh. 2 - Two elements form a compound that can be...Ch. 2 - Which of the diagrams can be used to illustrate...Ch. 2 - Prob. 113APCh. 2 - Prob. 114APCh. 2 - Prob. 115APCh. 2 - 2.116 Show the locations of (a) alkali metals, (b)...Ch. 2 - Prob. 117APCh. 2 - Prob. 118APCh. 2 - Prob. 119APCh. 2 - 2.120 (a) Describe Rutherford’s experiment and how...Ch. 2 - Prob. 121APCh. 2 - Prob. 122APCh. 2 - Prob. 123APCh. 2 - A cube made of platinum (Pt) has an edge length of...Ch. 2 - Prob. 125APCh. 2 - Prob. 126APCh. 2 - Prob. 1SEPPCh. 2 - Prob. 2SEPPCh. 2 - Prob. 3SEPPCh. 2 - Prob. 4SEPP
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