CHEMISTRY THE CENTRAL SCIENCE >EBOOK<
14th Edition
ISBN: 9780136873891
Author: Brown
Publisher: PEARSON
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Textbook Question
Chapter 3.4, Problem 3.7.2PE
Without using a calculator, arrange these samples in order of increasing numbers of O atoms:
1 mol H2O, 1 mol CO2, 3 x 1023 molecules of O3.
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Chapter 3 Solutions
CHEMISTRY THE CENTRAL SCIENCE >EBOOK<
Ch. 3.1 - In the following diagram, the white spheres...Ch. 3.1 - In the following digram, the white spheres...Ch. 3.1 - The unbalanced equation for the reaction between...Ch. 3.1 - Balance these equations by providing the missing...Ch. 3.2 - Which of the following reactions is the balanced...Ch. 3.2 - Write a balanced equation for (a) solid...Ch. 3.2 - Write the balanced equation for the reaction that...Ch. 3.2 - Prob. 3.4.2PECh. 3.3 - Which of the following is the correct formula...Ch. 3.3 - Prob. 3.5.2PE
Ch. 3.3 - What is the percentage of nitrogen, by mass, in...Ch. 3.3 - Calculate the percentage of potassium by mass in...Ch. 3.4 - Which of the following samples contains the fewest...Ch. 3.4 - Without using a calculator, arrange these samples...Ch. 3.4 -
How many sulfur are in (a) 0.45 mol BaSo4 and (b)...Ch. 3.4 -
How many oxygen atoms are in (a) 0.25 mol...Ch. 3.4 - A sample of an ionic compound containing iron and...Ch. 3.4 - Calculate the molar mass of Ca(NO3)2Ch. 3.4 - A 508-g sample of sodium bicarbonate (NaHCO3)...Ch. 3.4 - Prob. 3.10.2PECh. 3.4 - What is the mass, in grams, of 6.33 mol of NaHC03...Ch. 3.4 - What is the mass, in grams, of (a) 0.50 mol of...Ch. 3.4 - How many chlorine atoms are in 12.2 g of CCL4? a....Ch. 3.4 -
a. How many nitric acid molecules are in 4.20 g...Ch. 3.5 - A 2.144-g sample of phosgene, a compound used as a...Ch. 3.5 - A 5.325-g sample of methyl benzoate, a compound...Ch. 3.5 -
Cyclohexane a commonly used organic solvent, is...Ch. 3.5 - Prob. 3.14.2PECh. 3.5 -
The compound dioxane, which is used as a solvent...Ch. 3.5 -
a. Caproic acid, responsible for the odor of...Ch. 3.6 - Sodium hydroxide reacts with carbon dioxide to...Ch. 3.6 - Decomposition of KCIO3 is sometimes used to...Ch. 3.6 - Propane, C3 H8 (Figure 3.8), is a common fuel used...Ch. 3.6 -
Methanol, CH3OH, reacts with oxygen from air in a...Ch. 3.7 - When 24 mol of methanol and 15 mol of oxygen...Ch. 3.7 - a. When 1.50 mol of Al and 3.00 mol of Cl2 combine...Ch. 3.7 - Molten gallium reacts with arsenic to form the...Ch. 3.7 -
When a 2.00-g strip of zinc metal is placed in...Ch. 3.7 - If 3.00 g of titanium metal is reacted with 6.00 g...Ch. 3.7 - Imagine you are working on ways to improve the...Ch. 3 - The reaction between reactant A (blue spheres) and...Ch. 3 - The following diagram shows the combination...Ch. 3 -
3.3 The following diagram represents the...Ch. 3 -
3.4 The following diagram represents the...Ch. 3 - Glycine, an amino acid used by organisms to make...Ch. 3 - The following diagram represents a...Ch. 3 -
3.7 Nitrogen (N2) and hydrogen (H2) react to form...Ch. 3 -
3.8 Nitrogen monoxide and oxygen react to form...Ch. 3 - Write "true" or "false" for each statement. a. We...Ch. 3 - A key step in balancing chemical equations is...Ch. 3 - Balance the following equations: a. CO(g)...Ch. 3 - Balance the following equations 3. Li(s) + N2(g)...Ch. 3 -
3.13 Balance the following equations:
A14C3(s) +...Ch. 3 -
3.14 Balance the following equations:
a. Ca3P2(s)...Ch. 3 -
3.15 Write balanced chemical equations...Ch. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 -
318
a. When a compound containing C, H, and O is...Ch. 3 - Write a balanced chemical equation for the...Ch. 3 -
3.20 Write a balanced chemical equation for the...Ch. 3 - Balance the following equations and indicate...Ch. 3 - Balance the following equations and indicate...Ch. 3 - Determine the formula weights of each of the...Ch. 3 - 3.24 Determine the formula weights of each of the...Ch. 3 - Calculate the percentage by mass of oxygen in the...Ch. 3 - Calculate the percentage by mass of the indicated...Ch. 3 - Based on the following structural formulas,...Ch. 3 - Calculate the percentage of carbon by mass In each...Ch. 3 - Write "true' or 'Yalse' for each statement a- A...Ch. 3 - a. What is the mass, in grams, of one mole of 12C?...Ch. 3 - Without doing any detailed calculations (but using...Ch. 3 - Without doing any detailed calculations {but using...Ch. 3 - What is the mass, m Iqlograms, of an Avogadro“s...Ch. 3 - If Avogadro’s number of pennies is divided equally...Ch. 3 - Calculate the following quantities: a. mass, in...Ch. 3 - Calculate the following quantities: a. mass, in...Ch. 3 - a. What is the mass, in grams, of 2.50 x 10-3 mol...Ch. 3 - a. What is the mass, in grams, of 1.223 mol of...Ch. 3 -
339 The molecular formula of allicin, the...Ch. 3 -
3.40 The molecular formula of aspartame, the...Ch. 3 -
3.41 A sample of glucose, C6H12O6, contains 1.250...Ch. 3 - A sample of the male sex hormone testosterone,...Ch. 3 -
343 The allowable concentration level of vinyl...Ch. 3 - At least 25 g oftetrahydrocannabinol (THC), the...Ch. 3 - Give the empirical formula of each of the...Ch. 3 - Determine the empirical formula of each of the...Ch. 3 - Determine the empirical formulas of the compounds...Ch. 3 - Determine the empirical formulas of the compounds...Ch. 3 -
3.49 A compound whose empirical formula is XF3...Ch. 3 - The compound XCL4contains 75.0% CI by mass What is...Ch. 3 -
3.51 What is the molecular formula of each of the...Ch. 3 - What is the molecular formula of each of the...Ch. 3 - Determine the empirical and molecular formulas of...Ch. 3 - Determine the empirical and molecular formulas of...Ch. 3 - a. Combustion analysis of toluene, a common...Ch. 3 - a. The characteristic odor of pineapple is due to...Ch. 3 -
3.57 Valproic acid, used to treat seizures and...Ch. 3 - Propenoic acid, C3H4O2, is a reactive organic...Ch. 3 -
3.59 Washing soda, a compound used to prepare...Ch. 3 -
3.60 Epsom salts, a strong laxative used in...Ch. 3 - f 3461 Hydrofluoric acid, HF(aq), cannot be stored...Ch. 3 - The reaction between potassium superoxide, KO2,...Ch. 3 -
3,63 Several brands of antacids use Al(OH)3 to...Ch. 3 -
3.64 An iron ore sample contains Fe2O3 together...Ch. 3 - Aluminum sulfides reacts with water to form...Ch. 3 - Calcium hydride reacts with water to form calcium...Ch. 3 -
3.67 Automotive air bags infilate when sodium...Ch. 3 - The complete combustion of octane, Cngs, a...Ch. 3 -
3.69 A piece of aluminum foil 1.00 cm2 and...Ch. 3 - Detonation of nitroglycerin proceeds as follows:...Ch. 3 -
3.71 The combustion of one mole of liquid...Ch. 3 - The combustion of one mole of liquid octane,...Ch. 3 - a. Define the terms limiting reactant and excess...Ch. 3 - Define the terms theoretical yield, actual yield,...Ch. 3 -
3-75 Consider the mixture of ethanol, C2H5OH, and...Ch. 3 - Consider the mixture of propane, C3H8, and O2...Ch. 3 -
3-77 Sodium hydroxide reacts with carbon doxidc...Ch. 3 -
3.78 Aluminum hydroxide reacts with sulfuric acid...Ch. 3 - The fizz produced when an Alka-Seltzer tablet is...Ch. 3 - One of the steps in the commercial procas for...Ch. 3 - Solutions of sodium carbonate and silver nitrate...Ch. 3 - Solutions of sulfuric acid and Iead (ll) acetate...Ch. 3 - When benzene (C6H6) reacts with bromine (Br2),...Ch. 3 - When ethane (C6H6) reacts with chlorine (Cl2), the...Ch. 3 -
3.85 Hydrogen sulfide is an impurity in natural...Ch. 3 -
386 When hydrogen sulfide gas is bubbled into a...Ch. 3 -
387 Write the balanced chemical equations for
a....Ch. 3 - If 1.5 mol C2H5OH, 1.5 mol C3H8, and 1.5 mol...Ch. 3 -
3.89 The effectiveness of nitrogen fertilizers...Ch. 3 -
3.90
a. The molecular formula of acetylsalicylic...Ch. 3 - Very small semiconductor crystals, composed of...Ch. 3 - a. One molecule of the antibiotic penicillin G has...Ch. 3 - Serotonin is a compound that conducts nerve...Ch. 3 -
3.94 The koala dines exclusively on eucalyptus...Ch. 3 -
3.95 Vanillin, the dominant flavoring in vanilla,...Ch. 3 -
3.96 An organic compound was found to contain...Ch. 3 -
3.97 A compound, KBrO,, where x is unknown, is...Ch. 3 - 398 An element X forms an iodide (X13) and a...Ch. 3 - A method used by the U.S. Environmental Protection...Ch. 3 -
3.100 A chemical plant uses electrical energy to...Ch. 3 - The fat stored in a camel’s hump is a source of...Ch. 3 -
3.102 When hydrocarbons are burned in a limited...Ch. 3 -
3.103 A mixture of N2(g) and H2(g) reacts in a...Ch. 3 -
3.104 A mixture containing KClO3, K2CO3, KHCO3,...Ch. 3 - When a mixture of 10.0 g of acetylene (C2H2) and...Ch. 3 -
3.106 The semiconductor gallium arsenide, GaAs,...Ch. 3 -
3.107 Paclitaxel, C47H51NO14, is an anticancer...Ch. 3 -
3.108 Consider a sample of calcium carbonate in...Ch. 3 -
3.109
a. You are given a cube of silver metal...Ch. 3 -
3.110
a. If an automobile travels 225 mi with a...Ch. 3 - Prob. 111IECh. 3 -
3.112 A particular coal contains 2.596 sulfur by...Ch. 3 - Hydrogen cyanide, HCN, is a poisonous gas. The...Ch. 3 -
3.114 The source of oxygen that drives he...Ch. 3 -
3.115 The therrnite reaction, Fe2O3 +Al Al2O3 +...Ch. 3 -
3.116 One of the most bizarre reactions in...
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- Boron forms an extensive series of compounds with hydrogen, all with the general formula BxHy. To analyze one of these compounds, you burn it in air and isolate the boron in the form of B2O3 and the hydrogen in the form of water. You find that 0.1482 g BxHy gives 0.4221 g B2O3 when burned in excess O2. Determine the empirical I formula of BxHy.arrow_forward4.108 Elemental analysis is sometimes carried out by combustion of the sample. For a hydrocarbon, the only products formed are CO2 and H2O. If a 1.36-g sample of an unknown hydrocarbon is burned and 2.21 g of H2O is produced along with 4.07 g of CO2, what is the empirical formula of the hydrocarbon?arrow_forwardThe molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain relievers, is C9H8O4. a. Calculate the molar mass of aspirin. b. A typical aspirin tablet contains 500. mg C9H8O4. What amount (moles) of C9H8O4 molecules and what number of molecules of acetylsalicylic acid are in a 500.-mg tablet?arrow_forward
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- Phenol 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 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_forwardWhen heated, potassium chlorate, KClO3, melts and decomposes to potassium chloride and diatomic oxygen. (a) What is the theoretical yield of O2 from 3.75 g KClO3? (b) If 1.05 g of O2 is obtained, what is the percent yield?arrow_forward
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