Business
Engineering
Math
Science
Social Science
The atomic mass of boron (B) is given in the periodic table as 10.81, yet no single atom of boron has a mass of 10.81 u. Explain.
BuyFindarrow_forward
Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Solutions
Chapter
Section
BuyFindarrow_forward
Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 5, Problem 3RQ
Textbook Problem
65 views
The atomic mass of boron (B) is given in the periodic table as 10.81, yet no single atom of boron has a mass of 10.81 u. Explain.
Interpretation Introduction
Interpretation: The atomic mass value of boron in stated in the periodic table is given. The reason behind no atom of boron exhibiting this value is to be explained.
Concept introduction: The atomic mass of an element having isotopes is determined by taking an average of the atomic masses of the major isotopes of the element.
To determine: The explanation as to why no atom of boron exhibits the atomic mass stated in the periodic table.
Explanation of Solution
- Two major isotopes of Boron exist.
- The
Chapter 5 Solutions
Chemistry: An Atoms First Approach
Show all chapter solutions
addCh. 5 - Explain the concept of counting by weighing using...Ch. 5 - Atomic masses are relative masses. What does this...Ch. 5 - The atomic mass of boron (B) is given in the...Ch. 5 - What three conversion factors and in what order...Ch. 5 - Fig. 5-5 illustrates a schematic diagram of a...Ch. 5 - What is the difference between the empirical and...Ch. 5 - Consider the hypothetical reaction between A2 and...Ch. 5 - What is a limiting reactant problem? Explain the...Ch. 5 - Consider the following mixture of SO2(g) and...Ch. 5 - Why is the actual yield of a reaction often less...
Ch. 5 - The following are actual student responses to the...Ch. 5 - What information do we get from a chemical...Ch. 5 - You are making cookies and are missing a key...Ch. 5 - Nitrogen gas (N2) and hydrogen gas (H2) react to...Ch. 5 - For the preceding question, which of the following...Ch. 5 - You know that chemical A reacts with chemical B....Ch. 5 - A new grill has a mass of 30.0 kg. You put 3.0 kg...Ch. 5 - Consider an iron bar on a balance as shown. As the...Ch. 5 - You may have noticed that water sometimes drips...Ch. 5 - Questions 10 and 11 deal with the following...Ch. 5 - What is true about the chemical properties of the...Ch. 5 - Is there a difference between a homogeneous...Ch. 5 - Chlorine exists mainly as two isotopes, 37Cl and...Ch. 5 - The average mass of a carbon atom is 12.011....Ch. 5 - Can the subscripts in a chemical formula be...Ch. 5 - Consider the equation 2A + B . A2B. If you mix 1.0...Ch. 5 - According to the law of conservation of mass, mass...Ch. 5 - Which of the following pairs of compounds have the...Ch. 5 - Atoms of three different elements are represented...Ch. 5 - In chemistry, what is meant by the term mole? What...Ch. 5 - Which (if any) of the following is (are) true...Ch. 5 - Consider the equation 3A + B C + D. You react 4...Ch. 5 - Reference Section 5-2 to find the atomic masses of...Ch. 5 - Avogadros number, molar mass, and the chemical...Ch. 5 - If you had a mole of U.S. dollar bills and equally...Ch. 5 - Describe 1 mole of CO2 in as many ways as you can.Ch. 5 - Which of the following compounds have the same...Ch. 5 - What is the difference between the molar mass and...Ch. 5 - How is the mass percent of elements in a compound...Ch. 5 - A balanced chemical equation contains a large...Ch. 5 - The reaction of an element X with element Y is...Ch. 5 - Hydrogen gas and oxygen gas react to form water,...Ch. 5 - What is the theoretical yield for a reaction, and...Ch. 5 - What does it mean to say a reactant is present in...Ch. 5 - Consider the following generic reaction: A2B2 + 2C...Ch. 5 - Consider the following generic reaction:...Ch. 5 - An element consists of 1.40% of an isotope with...Ch. 5 - An element X bas five major isotopes, which are...Ch. 5 - The element rhenium (Re) bas two naturally...Ch. 5 - Assume silicon has three major isotopes in nature...Ch. 5 - The element europium exists in nature as two...Ch. 5 - The element silver (Ag) has two naturally...Ch. 5 - The mass spectrum of bromine (Br2) consists of...Ch. 5 - The stable isotopes of iron arc 54Fe, 56Fe, 57Fe,...Ch. 5 - Calculate the mass of 500. atoms of iron (Fe).Ch. 5 - What number of Fe atoms and what amount (moles) of...Ch. 5 - Diamond is a natural form of pure carbon. What...Ch. 5 - A diamond contains 5.0 1021 atoms of carbon. What...Ch. 5 - Aluminum metal is produced by passing an electric...Ch. 5 - The Freons are a class of compounds containing...Ch. 5 - Calculate the molar mass of the following...Ch. 5 - Calculate the molar mass of the following...Ch. 5 - What amount (moles) of compound is present in 1.00...Ch. 5 - What amount (moles) of compound is present in 1.00...Ch. 5 - What mass of compound is present in 5.00 moles of...Ch. 5 - What mass of compound is present in 5.00 moles of...Ch. 5 - What mass of nitrogen is present in 5.00 moles of...Ch. 5 - What mass of phosphorus is present in 5.00 moles...Ch. 5 - What number of molecules (or formula units) are...Ch. 5 - What number of molecules (or formula units) are...Ch. 5 - What number of atoms of nitrogen are present in...Ch. 5 - What number of atoms of phosphorus are present in...Ch. 5 - Freon- 12 (CCI2F2) is used as a refrigerant in air...Ch. 5 - Bauxite, the principal ore used in the production...Ch. 5 - What amount (moles) is represented by each of...Ch. 5 - What amount (moles) is represented by each of...Ch. 5 - What number of atoms of nitrogen are present in...Ch. 5 - Complete the following table.Ch. 5 - Ascorbic acid, or vitamin C (C6H8O6), is an...Ch. 5 - The molecular formula of acetylsalicylic acid...Ch. 5 - Chloral hydrate (C2H3Cl3O2) is a drug formerly...Ch. 5 - Dimethylnitrosamine, (CH3)2N2O , is a carcinogenic...Ch. 5 - Calculate the percent composition by mass of the...Ch. 5 - In 1987 the first substance to act as a...Ch. 5 - The percent by mass of nitrogen for a compound is...Ch. 5 - Arrange the following substances in order of...Ch. 5 - Fungal laccase, a blue protein found in...Ch. 5 - Hemoglobin is the protein that transports oxygen...Ch. 5 - Express the composition of each of the following...Ch. 5 - Considering your answer to Exercise 79, which type...Ch. 5 - Give the empirical formula for each of the...Ch. 5 - Determine the molecular formulas to which the...Ch. 5 - A compound that contains only carbon, hydrogen,...Ch. 5 - The most common form of nylon (nylon-6) is 63.68%...Ch. 5 - There are two binary compounds of mercury and...Ch. 5 - A sample of urea contains 1.121 g N, 0.161 g H,...Ch. 5 - A compound containing only sulfur and nitrogen is...Ch. 5 - Determine the molecular formula of a compound that...Ch. 5 - A compound contains 47.08% carbon, 6.59% hydrogen,...Ch. 5 - Maleic acid is an organic compound composed of...Ch. 5 - One of the components that make up common table...Ch. 5 - A compound contains only C, H, and N. Combustion...Ch. 5 - Cumene is a compound containing only carbon and...Ch. 5 - A compound contains only carbon, hydrogen, and...Ch. 5 - Give the balanced equation for each of the...Ch. 5 - Give the balanced equation for each of the...Ch. 5 - A common demonstration in chemistry courses...Ch. 5 - Iron oxide ores, commonly a mixture of FeO and...Ch. 5 - Balance the following equations: a. Ca(OH)2(aq) +...Ch. 5 - Balance each of the following chemical equations....Ch. 5 - Balance the following equations representing...Ch. 5 - Balance the following equations: a. Cr(s) + S8(s) ...Ch. 5 - Silicon is produced for the chemical and...Ch. 5 - Glass is a mixture of several compounds, but a...Ch. 5 - Over the years, the thermite reaction has been...Ch. 5 - The reaction between potassium chlorate and red...Ch. 5 - The reusable booster rockets of the U.S. space...Ch. 5 - One of relatively few reactions that takes place...Ch. 5 - Elixirs such as Atka-Seltzer use the reaction of...Ch. 5 - Aspirin (C9H8O4) is synthesized by reacting...Ch. 5 - Bacterial digestion is an economical method of...Ch. 5 - Phosphorus can be prepared from calcium phosphate...Ch. 5 - Coke is an impure form of carbon that is often...Ch. 5 - The space shuttle environmental control system...Ch. 5 - Consider the reaction between NO(g) and O2(g)...Ch. 5 - Consider the following reaction:...Ch. 5 - Ammonia is produced from the reaction of nitrogen...Ch. 5 - Consider the following unbalanced equation:...Ch. 5 - Hydrogen peroxide is used as a cleansing agent in...Ch. 5 - Silver sulfadiazine bum-treating cream creates a...Ch. 5 - Hydrogen cyanide is produced industrially from the...Ch. 5 - Acrylonitrile C3H3N) is the starting material for...Ch. 5 - The reaction of ethane gas (C2H6) with chlorine...Ch. 5 - DDT, an insecticide harmful to fish, birds, and...Ch. 5 - Bornite (Cu3FeS3) is a copper ore used in the...Ch. 5 - Consider the following unbalanced reaction:...Ch. 5 - In using a mass spectrometer, a chemist sees a...Ch. 5 - Boron consists of two isotopes, 10B and 11B....Ch. 5 - A given sample of a xenon fluoride compound...Ch. 5 - Aspartame is an artificial sweetener that is 160...Ch. 5 - Anabolic steroids are performance enhancement...Ch. 5 - Many cereals are made with high moisture content...Ch. 5 - The compound adrenaline contains 56.79% C, 6.56%...Ch. 5 - Adipic acid is an organic compound composed of...Ch. 5 - Vitamin B12, cyanocobalamin, is essential for...Ch. 5 - Some bismuth tablets, a medication used to treat...Ch. 5 - The empirical formula of styrene is CH; the molar...Ch. 5 - Terephthalic acid is an important chemical used in...Ch. 5 - A sample of a hydrocarbon (a compound consisting...Ch. 5 - A binary compound between an unknown element E and...Ch. 5 - A 0.755-g sample of hydrated copper(II) sulfate...Ch. 5 - ABS plastic is a tough, hard plastic used in...Ch. 5 - A sample of LSD (D-lysergic acid diethylamide,...Ch. 5 - Methane (CH4) is the main component of marsh gas....Ch. 5 - A potential fuel for rockets is a combination of...Ch. 5 - A 0.4230-g sample of impure sodium nitrate was...Ch. 5 - An iron ore sample contains Fe2O3 plus other...Ch. 5 - Commercial brass, an alloy of Zn and Cu, reacts...Ch. 5 - Vitamin A has a molar mass of 286.4 g/mol and a...Ch. 5 - You have seven closed containers, each with equal...Ch. 5 - A substance X2Z has the composition (by mass) of...Ch. 5 - Consider samples of phosphine (PH3), water (H2O),...Ch. 5 - Calculate the number of moles for each compound in...Ch. 5 - Arrange the following substances in order of...Ch. 5 - Para-cresol, a substance used as a disinfectant...Ch. 5 - A compound with molar mass 180.1 g/mol has the...Ch. 5 - Which of the following statements about chemical...Ch. 5 - Consider the following unbalanced chemical...Ch. 5 - Sulfur dioxide gas reacts with sodium hydroxide to...Ch. 5 - Gallium arsenide, GaAs, has gained widespread use...Ch. 5 - Consider the following data for three binary...Ch. 5 - Natural rubidium has the average mass of 85.4678 u...Ch. 5 - A compound contains only carbon, hydrogen,...Ch. 5 - Nitric acid is produced commercially by the...Ch. 5 - When the supply of oxygen is limited, iron metal...Ch. 5 - A 9.780-g gaseous mixture contains ethane (C2H6)...Ch. 5 - Zinc and magnesium metal each reacts with...Ch. 5 - A gas contains a mixture of NH3(g) and N2H4(g),...Ch. 5 - Consider a gaseous binary compound with a molar...Ch. 5 - A 2.25-g sample of scandium metal is reacted with...Ch. 5 - In the production of printed circuit boards for...Ch. 5 - The aspirin substitute, acetaminophen (C8H9O2N),...Ch. 5 - An element X forms both a dichloride (XCl2) and a...Ch. 5 - When M2S3(s) is heated in air, it is converted to...Ch. 5 - When aluminum metal is heated with an element from...Ch. 5 - Consider a mixture of potassium chloride and...Ch. 5 - Ammonia reacts with O2 to form either NO(g) or...Ch. 5 - You take 1.00 g of an aspirin tablet (a compound...Ch. 5 - With the advent of techniques such as scanning...Ch. 5 - Tetrodotoxin is a toxic chemical found in fugu...Ch. 5 - An iortic compound MX3 is prepared according to...Ch. 5 - The compound As2I4 is synthesized by reaction of...Ch. 5 - A compound XF5 is 42.81% fluorine by mass....Ch. 5 - A 2.077-g sample of an element, which has an...Ch. 5 - Consider the following balanced chemical equation:...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Show solutions addA material will float on the surface of a liquid if the material has a density less than that of the liquid. Gi...
Introductory Chemistry: A Foundation
Matter can be represented as being composed of individual units. For example, the smallest individual unit of m...
General Chemistry - Standalone book (MindTap Course List)
FIGURE 10.31 Along this lateral plate boundary, marked by the San Andreas Fault in western North America, the P...
Fundamentals of Physical Geography
(Indicates a review question. which means it requires only a basic understanding of the material to answer. Que...
Inquiry into Physics
A ________ is an example of protein secondary structure. a. barrel b. polypeptide c. domain d. helix
Biology: The Unity and Diversity of Life (MindTap Course List)
For healthy adults, the DRI recommended intake for protein has been set at 0.3 grams per kilogram of body weigh...
Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)
Discuss the importance of comparative genomics to the study of human genetics.
Biology (MindTap Course List)
In 2015, the U.S. national debt was about 18 trillion. (a) If payments were made at the rate of 1 000 per secon...
College Physics
Calculate the energy available from a bean burrito with cheese (55 grams carbohydrate, 15 grams protein, and 12...
Understanding Nutrition (MindTap Course List)
Carry out the following operations. Provide the answer with the correct number of significant figures. (a) (1.5...
Chemistry & Chemical Reactivity
11. What is the difference between the fission reaction carried out by Fermi at the University of Chicago and t...
Chemistry In Focus
Figure 4.39 shows Superhero and Trusty Sidekick hanging motionless from a rope. Superhero's mass is 90.0 kg, wh...
College Physics
What is the gardeners displacement (Fig. 2.21)? Give a general direction, such as south or west. (Hint: Think o...
An Introduction to Physical Science
3-29 Answer true or false. (a) According to the Lewis model of bonding, atoms bond together in such a way that ...
Introduction to General, Organic and Biochemistry
What are the possible values for m l for (a) the d sublevel? (b) the s sublevel? (c) all sublevels where n=2?
Chemistry: Principles and Reactions
The relative energies of the π molecular orbitals for butadiene molecule, which has four π electrons is to be p...
Physical Chemistry
4.18 A gas is either CH4, or C2H6. A 1.00-g sample of this gas produces 1.80 g of water when combusted in exces...
Chemistry for Engineering Students
According to the chemiosmotic theory, ATP synthesis results from the flow of what particles? Across what membra...
Chemistry for Today: General, Organic, and Biochemistry
The circular velocity of Earth around the Sun is about 30 km/s. Are the relative sizes of the velocity arrows f...
Horizons: Exploring the Universe (MindTap Course List)
The freeze-fracture technique demonstrated: a. that the plasma membrane is a bilayer with individual proteins s...
Biology: The Dynamic Science (MindTap Course List)
RECALL Which organelles contain DNA?
Biochemistry
Studies have consistently shown that high intakes of caffeine or coffee reduce fertility. ______ True______ Fal...
Nutrition Through The Life Cycle
__________ are the closest relatives of the land plants. a. Green algae c. Brown algae b. Red algae d. Euglenoi...
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
The mean intraluminal pressure in the pulmonary capillaries is A. 5 mm Hg B. 10 mm Hg C. 15 mm Hg D. 20 mm Hg
Cardiopulmonary Anatomy & Physiology
Identify the stages of mitosis, and describe the important events that occur during each stage.
Human Heredity: Principles and Issues (MindTap Course List)
Distinguish between a. neutrophil and macrophage b. cytotoxic T cell and natural killer cell c. effector cell a...
Human Biology (MindTap Course List)
6. List the different types of electromagnetic radiation and their approximate wavelength.
Chemistry In Focus
A chemist needs exactly 2 moles of KNO3 to make a solution. What mass of solid KNO3 must be used?
Chemistry for Engineering Students
Electrostatic potential maps of a typical amide (acetamide) and an acyl azide (acetyl azide) are shown. Which o...
Organic Chemistry
It is not possible to see very small objects, such as viruses, using an ordinary light microscope. An electron ...
Physics for Scientists and Engineers
A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling o...
College Physics
The following diagram depicts a gaseous mixture of neon (red spheres), argon (black spheres), and krypton (yell...
General, Organic, and Biological Chemistry
Explain why you agree or disagree with each of the following statements: (a) humans are superior to other forms...
Environmental Science (MindTap Course List)
A vegan breastfeeding woman should be advised to: a. Continue her vegan diet, if she chooses, while making sure...
Nutrition Through the Life Cycle (MindTap Course List)
What do you think are the three most environmentally unsustainable components of your lifestyle? List two ways ...
Environmental Science (MindTap Course List)
What is cell differentiation, and how does vitamin A participate in this process?
Organic And Biological Chemistry
In _____, a hypha has no cross-walls. a. zygote fungi b. sac fungi c. club fungi d. all of the above
Biology: The Unity and Diversity of Life (MindTap Course List)
Why is the following situation impossible? A shopper pushing a cart through a market follows directions to the ...
Physics for Scientists and Engineers, Technology Update (No access codes included)
The solubility of NaCl in water at 100 C is 39.1 g/100. g of water Calculate the boiling point of this solution...
Chemistry & Chemical Reactivity
Which of the five memorized -ic acids serve as models for family relationships in the nomenclature of acids, an...
Introductory Chemistry: An Active Learning Approach
The 1H-NMR spectrum of compound R, C6H14O, consists of two signals: 1.1 (doublet) and 3.6 (septet) in the rat...
Organic Chemistry
In the photo shown here, astronaut Alan Bean works at the Apollo 12 lander. Describe the horizon and the surfac...
Foundations of Astronomy (MindTap Course List)
Noise cancellation headphones use a microphone to pick up background noise and a speaker to produce a sound wav...
Physics for Scientists and Engineers: Foundations and Connections
What special difficulties would engineers expect to encounter when designing energy-extracting devices suitable...
Oceanography: An Invitation To Marine Science, Loose-leaf Versin
Review. A block with a speaker bolted to it is connected to a spring having spring constant k = 20.0 N/m and os...
Physics for Scientists and Engineers with Modern Physics
