Chemistry
9th Edition
ISBN: 9781133611097
Author: Steven S. Zumdahl
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 80E
Considering your answer to Exercise 79, which type of formula, empirical or molecular, can be obtained from elemental analysis that gives percent composition?
Expert Solution & Answer
Trending nowThis is a popular solution!
Chapter 3 Solutions
Chemistry
Ch. 3 - Prob. 1RQCh. 3 - Atomic masses are relative masses. What does this...Ch. 3 - The atomic mass of boron (B) is given in the...Ch. 3 - What three conversion factors and in what order...Ch. 3 - Fig. 5-5 illustrates a schematic diagram of a...Ch. 3 - What is the difference between the empirical and...Ch. 3 - Consider the hypothetical reaction between A2 and...Ch. 3 - Prob. 8RQCh. 3 - Consider the following mixture of SO2(g) and...Ch. 3 - Why is the actual yield of a reaction often less...
Ch. 3 - The following are actual student responses to the...Ch. 3 - What information do we get from a chemical...Ch. 3 - You are making cookies and are missing a key...Ch. 3 - Nitrogen gas (N2) and hydrogen gas (H2) react to...Ch. 3 - For the preceding question, which of the following...Ch. 3 - You know that chemical A reacts with chemical B....Ch. 3 - Prob. 7ALQCh. 3 - Consider an iron bar on a balance as shown. As the...Ch. 3 - You may have noticed that water sometimes drips...Ch. 3 - Prob. 10ALQCh. 3 - What is true about the chemical properties of the...Ch. 3 - Is there a difference between a homogeneous...Ch. 3 - Chlorine exists mainly as two isotopes, 37Cl and...Ch. 3 - The average mass of a carbon atom is 12.011....Ch. 3 - Can the subscripts in a chemical formula be...Ch. 3 - Consider the equation 2A + B . A2B. If you mix 1.0...Ch. 3 - According to the law of conservation of mass, mass...Ch. 3 - Which of the following pairs of compounds have the...Ch. 3 - Atoms of three different elements are represented...Ch. 3 - In chemistry, what is meant by the term mole? What...Ch. 3 - Which (if any) of the following is (are) true...Ch. 3 - Consider the equation 3A + B C + D. You react 4...Ch. 3 - Reference Section 3.2 to find the atomic masses of...Ch. 3 - Avogadros number, molar mass, and the chemical...Ch. 3 - If you had a mole of U.S. dollar bills and equally...Ch. 3 - Prob. 26QCh. 3 - Which of the following compounds have the same...Ch. 3 - What is the difference between the molar mass and...Ch. 3 - How is the mass percent of elements in a compound...Ch. 3 - A balanced chemical equation contains a large...Ch. 3 - Prob. 31QCh. 3 - Hydrogen gas and oxygen gas react to form water,...Ch. 3 - What is the theoretical yield for a reaction, and...Ch. 3 - What does it mean to say a reactant is present in...Ch. 3 - Consider the following generic reaction: A2B2 + 2C...Ch. 3 - Consider the following generic reaction:...Ch. 3 - An element consists of 1.40% of an isotope with...Ch. 3 - An element X bas five major isotopes, which are...Ch. 3 - The element rhenium (Re) bas two naturally...Ch. 3 - Assume silicon has three major isotopes in nature...Ch. 3 - The element europium exists in nature as two...Ch. 3 - The element silver (Ag) has two naturally...Ch. 3 - The mass spectrum of bromine (Br2) consists of...Ch. 3 - The stable isotopes of iron arc 54Fe, 56Fe, 57Fe,...Ch. 3 - Calculate the mass of 500. atoms of iron (Fe).Ch. 3 - What number of Fe atoms and what amount (moles) of...Ch. 3 - Diamond is a natural form of pure carbon. What...Ch. 3 - A diamond contains 5.0 1021 atoms of carbon. What...Ch. 3 - Aluminum metal is produced by passing an electric...Ch. 3 - The Freons are a class of compounds containing...Ch. 3 - Calculate the molar mass of the following...Ch. 3 - Calculate the molar mass of the following...Ch. 3 - What amount (moles) of compound is present in 1.00...Ch. 3 - What amount (moles) of compound is present in 1.00...Ch. 3 - What mass of compound is present in 5.00 moles of...Ch. 3 - What mass of compound is present in 5.00 moles of...Ch. 3 - Prob. 57ECh. 3 - Prob. 58ECh. 3 - What number of molecules (or formula units) are...Ch. 3 - What number of molecules (or formula units) are...Ch. 3 - What number of atoms of nitrogen are present in...Ch. 3 - Prob. 62ECh. 3 - Freon- 12 (CCI2F2) is used as a refrigerant in air...Ch. 3 - Bauxite, the principal ore used in the production...Ch. 3 - What amount (moles) is represented by each of...Ch. 3 - What amount (moles) is represented by each of...Ch. 3 - What number of atoms of nitrogen are present in...Ch. 3 - Complete the following table.Ch. 3 - Ascorbic acid, or vitamin C (C6H8O6), is an...Ch. 3 - The molecular formula of acetylsalicylic acid...Ch. 3 - Chloral hydrate (C2H3Cl3O2) is a drug formerly...Ch. 3 - Dimethylnitrosamine, (CH3)2N2O , is a carcinogenic...Ch. 3 - Calculate the percent composition by mass of the...Ch. 3 - In 1987 the first substance to act as a...Ch. 3 - The percent by mass of nitrogen for a compound is...Ch. 3 - Arrange the following substances in order of...Ch. 3 - Fungal laccase, a blue protein found in...Ch. 3 - Hemoglobin is the protein that transports oxygen...Ch. 3 - Express the composition of each of the following...Ch. 3 - Considering your answer to Exercise 79, which type...Ch. 3 - Give the empirical formula for each of the...Ch. 3 - Determine the molecular formulas to which the...Ch. 3 - A compound that contains only carbon, hydrogen,...Ch. 3 - The most common form of nylon (nylon-6) is 63.68%...Ch. 3 - There are two binary compounds of mercury and...Ch. 3 - A sample of urea contains 1.121 g N, 0.161 g H,...Ch. 3 - A compound containing only sulfur and nitrogen is...Ch. 3 - Determine the molecular formula of a compound that...Ch. 3 - A compound contains 47.08% carbon, 6.59% hydrogen,...Ch. 3 - Maleic acid is an organic compound composed of...Ch. 3 - One of the components that make up common table...Ch. 3 - A compound contains only C, H, and N. Combustion...Ch. 3 - Cumene is a compound containing only carbon and...Ch. 3 - A compound contains only carbon, hydrogen, and...Ch. 3 - Give the balanced equation for each of the...Ch. 3 - Give the balanced equation for each of the...Ch. 3 - A common demonstration in chemistry courses...Ch. 3 - Iron oxide ores, commonly a mixture of FeO and...Ch. 3 - Balance the following equations: a. Ca(OH)2(aq) +...Ch. 3 - Balance each of the following chemical equations....Ch. 3 - Balance the following equations representing...Ch. 3 - Balance the following equations: a. Cr(s) + S8(s) ...Ch. 3 - Silicon is produced for the chemical and...Ch. 3 - Glass is a mixture of several compounds, but a...Ch. 3 - Over the years, the thermite reaction has been...Ch. 3 - The reaction between potassium chlorate and red...Ch. 3 - The reusable booster rockets of the U.S. space...Ch. 3 - One of relatively few reactions that takes place...Ch. 3 - Elixirs such as Atka-Seltzer use the reaction of...Ch. 3 - Aspirin (C9H8O4) is synthesized by reacting...Ch. 3 - Bacterial digestion is an economical method of...Ch. 3 - Phosphorus can be prepared from calcium phosphate...Ch. 3 - Coke is an impure form of carbon that is often...Ch. 3 - The space shuttle environmental control system...Ch. 3 - Consider the reaction between NO(g) and O2(g)...Ch. 3 - Consider the following reaction:...Ch. 3 - Ammonia is produced from the reaction of nitrogen...Ch. 3 - Consider the following unbalanced equation:...Ch. 3 - Hydrogen peroxide is used as a cleansing agent in...Ch. 3 - Silver sulfadiazine bum-treating cream creates a...Ch. 3 - Hydrogen cyanide is produced industrially from the...Ch. 3 - Acrylonitrile C3H3N) is the starting material for...Ch. 3 - The reaction of ethane gas (C2H6) with chlorine...Ch. 3 - DDT, an insecticide harmful to fish, birds, and...Ch. 3 - Bornite (Cu3FeS3) is a copper ore used in the...Ch. 3 - Prob. 126ECh. 3 - In using a mass spectrometer, a chemist sees a...Ch. 3 - Boron consists of two isotopes, 10B and 11B....Ch. 3 - A given sample of a xenon fluoride compound...Ch. 3 - Aspartame is an artificial sweetener that is 160...Ch. 3 - Anabolic steroids are performance enhancement...Ch. 3 - Many cereals are made with high moisture content...Ch. 3 - The compound adrenaline contains 56.79% C, 6.56%...Ch. 3 - Adipic acid is an organic compound composed of...Ch. 3 - Vitamin B12, cyanocobalamin, is essential for...Ch. 3 - Some bismuth tablets, a medication used to treat...Ch. 3 - The empirical formula of styrene is CH; the molar...Ch. 3 - Terephthalic acid is an important chemical used in...Ch. 3 - A sample of a hydrocarbon (a compound consisting...Ch. 3 - A binary compound between an unknown element E and...Ch. 3 - A 0.755-g sample of hydrated copper(II) sulfate...Ch. 3 - ABS plastic is a tough, hard plastic used in...Ch. 3 - A sample of LSD (D-lysergic acid diethylamide,...Ch. 3 - Methane (CH4) is the main component of marsh gas....Ch. 3 - A potential fuel for rockets is a combination of...Ch. 3 - A 0.4230-g sample of impure sodium nitrate was...Ch. 3 - Prob. 147AECh. 3 - Commercial brass, an alloy of Zn and Cu, reacts...Ch. 3 - Vitamin A has a molar mass of 286.4 g/mol and a...Ch. 3 - You have seven closed containers, each with equal...Ch. 3 - A substance X2Z has the composition (by mass) of...Ch. 3 - Consider samples of phosphine (PH3), water (H2O),...Ch. 3 - Calculate the number of moles for each compound in...Ch. 3 - Arrange the following substances in order of...Ch. 3 - Para-cresol, a substance used as a disinfectant...Ch. 3 - A compound with molar mass 180.1 g/mol has the...Ch. 3 - Prob. 157CWPCh. 3 - Consider the following unbalanced chemical...Ch. 3 - Sulfur dioxide gas reacts with sodium hydroxide to...Ch. 3 - Gallium arsenide, GaAs, has gained widespread use...Ch. 3 - Consider the following data for three binary...Ch. 3 - Natural rubidium has the average mass of 85.4678 u...Ch. 3 - A compound contains only carbon, hydrogen,...Ch. 3 - Nitric acid is produced commercially by the...Ch. 3 - When the supply of oxygen is limited, iron metal...Ch. 3 - A 9.780-g gaseous mixture contains ethane (C2H6)...Ch. 3 - Zinc and magnesium metal each reacts with...Ch. 3 - A gas contains a mixture of NH3(g) and N2H4(g),...Ch. 3 - Consider a gaseous binary compound with a molar...Ch. 3 - A 2.25-g sample of scandium metal is reacted with...Ch. 3 - Prob. 171CPCh. 3 - The aspirin substitute, acetaminophen (C8H9O2N),...Ch. 3 - An element X forms both a dichloride (XCl2) and a...Ch. 3 - When M2S3(s) is heated in air, it is converted to...Ch. 3 - When aluminum metal is heated with an element from...Ch. 3 - Consider a mixture of potassium chloride and...Ch. 3 - Ammonia reacts with O2 to form either NO(g) or...Ch. 3 - You take 1.00 g of an aspirin tablet (a compound...Ch. 3 - With the advent of techniques such as scanning...Ch. 3 - Tetrodotoxin is a toxic chemical found in fugu...Ch. 3 - An iortic compound MX3 is prepared according to...Ch. 3 - The compound As2I4 is synthesized by reaction of...Ch. 3 - A 2.077-g sample of an element, which has an...Ch. 3 - Consider the following balanced chemical equation:...
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
- What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 52?arrow_forwardA sample of a hydrocarbon (a compound consisting of only carbon and hydrogen) contains 2.59 1023 atoms of hydrogen and is 17.3% hydrogen by mass. If the molar mass of the hydrocarbon is between 55 and 65 g/mol, what amount (moles) of compound is present, and what is the mass of the sample?arrow_forwardMany cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% H2O by mass is produced at the rate of 1000. kg/h. What mass of water must be evaporated per hour if the final product contains only 20.% water?arrow_forward
- Fig. 5-5 illustrates a schematic diagram of a combustion device used to analyze organic compounds. Given that a certain amount of a compound containing carbon, hydrogen, and oxygen is combusted in this device, explain how the data relating to the mass of CO2 produced and the mass of H2O produced can be manipulated to determine the empirical formula.arrow_forwardHydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen, and methane: 2NH3(g)+3O2(g)+2CH4(g)2HCN(g)+6H2O(g) If 5.00 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?arrow_forwardThe active ingredient in Pepto-Bismo® (an over- the-counter remedy for an upset stomach) is bismuth sub-salicylate, C7H5BiO4. Analysis of a 1.7500-g sample of Pepto-Bismol yields 346 mg of bismuth. What percent by mass is bismuth subsalicylate in the sample? (Assume that there are no other bismuth-containing compounds in Pepto-Bismol.)arrow_forward
- Methane (CH4) is the main component of marsh gas. Heating methane in the presence of sulfur produces carbon disulfide and hydrogen sulfide as the only products. a. Write the balanced chemical equation for the reaction of methane and sulfur. b. Calculate the theoretical yield of carbon disulfide when 120. g of methane is reacted with an equal mass of sulfur.arrow_forwardSilicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction. a. SiO2(s)+C(s)Si(s)+CO(g) b. Silicon tetrachloride is reacted with very pure magnesium, producing silicon and magnesium chloride. c. Na2SiF6(s)+Na(s)Si(s)+NaF(s)arrow_forwardA substance X2Z has the composition (by mass) of 40.0% X and 60.0% Z. What is the composition (by mass) of the compound XZ2?arrow_forward
- The principal component of mothballs is naphthalene, a compound with a molecular mass of about 130 amu, containing only carbon and hydrogen. A 3.000-mg sample of naphthalene burns to give 10.3 mg of CO2. Determine its empirical and molecular formulas.arrow_forwardPhenol is a compound of carbon, hydrogen, and oxygen used commonly as a disinfectant. Combustion of a 175-mg sample of phenol yielded 491 mg CO2 and 100. mg H2O. Calculate the empirical formula of phenol. Identify what other information is needed to determine whether the empirical formula is the actual molecular formula.arrow_forwardThe space shuttle environmental control system handles excess CO2 (which the astronauts breathe out; it is 4.0% by mass of exhaled air) by reacting it with lithium hydroxide, LiOH, pellets to form lithium carbonate, Li2CO3, and water. If there are seven astronauts on board the shuttle, and each exhales 20. L of air pee minute, how long could clean air be generated if there were 25,000 g of LiOH pellets available for each shuttle mission? Assume the density of air is 0.0010 g/mL.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY