Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 9QAP
Convert the following to moles.
(a)
(b) 12.5 g of tin(II) fluoride, the active ingredient in fluoride toothpaste
(c) 13 g of caffeine, C4H5N2O
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Chapter 3 Solutions
Chemistry: Principles and Reactions
Ch. 3 - One chocolate chip used in making chocolate chip...Ch. 3 - The meat from one hazelnut has a mass of 0.985 g....Ch. 3 - Determine (a) the mass of 0.429 mol of gold. (b)...Ch. 3 - How many electrons are in (a) an ion of Sc3+? (b)...Ch. 3 - A cube of sodium has length 1.25 in. How many...Ch. 3 - Prob. 6QAPCh. 3 - Calculate the molar masses (in grams per mole) of...Ch. 3 - Calculate the molar mass (in grams/mol) of (a)...Ch. 3 - Convert the following to moles. (a) 4.00103g of...Ch. 3 - Convert to moles. (a) 128.3 g of sucralose,...
Ch. 3 - Calculate the mass in grams of 3.839 moles of (a)...Ch. 3 - Calculate the mass in grams of 1.35 mol of (a)...Ch. 3 - Complete the following table for TNT...Ch. 3 - Complete the following table for citric acid,...Ch. 3 - Household ammonia used for cleaning contains about...Ch. 3 - Prob. 16QAPCh. 3 - What is the molarity of each ion present in...Ch. 3 - What is the molarity of each ion present in...Ch. 3 - How would you prepare from the solid and pure...Ch. 3 - Starting with the solid and adding water, how...Ch. 3 - You are asked to prepare a 0.8500 M solution of...Ch. 3 - An experiment calls for a 0.4500 M solution of...Ch. 3 - Prob. 23QAPCh. 3 - Twenty-five mL of a 0.388 M solution of Na2SO4 is...Ch. 3 - Turquoise has the following chemical formula:...Ch. 3 - Diazepam is the addictive tranquilizer also known...Ch. 3 - Small amounts of tungsten (W) are usually added to...Ch. 3 - Allicin is responsible for the distinctive taste...Ch. 3 - The active ingredient in Pepto-Bismo® (an over-...Ch. 3 - The active ingredient in some antiperspirants is...Ch. 3 - Combustion analysis of 1.00 g of the male sex...Ch. 3 - Hexachlorophene, a compound made up of atoms of...Ch. 3 - A compound NiX3 is 19.67% (by mass) nickel. What...Ch. 3 - A compound R2O3 is 32.0% oxygen. What is the molar...Ch. 3 - Manganese reacts with fluorine to form a fluoride....Ch. 3 - Nickel reacts with sulfur to form a sulfide. If...Ch. 3 - Determine the simplest formulas of the following...Ch. 3 - Determine the simplest formulas of the following...Ch. 3 - Nicotine is found in tobacco leaf and is mainly...Ch. 3 - Prob. 40QAPCh. 3 - Beta-blockers are a class of drug widely used to...Ch. 3 - Saccharin is the active ingredient in many...Ch. 3 - Hexamethylenediamine (MM=116.2g/mol), a compound...Ch. 3 - Prob. 44QAPCh. 3 - Epsom salts are hydrated crystals of magnesium...Ch. 3 - Sodium borate decahydrate, Na2B4O710H2O is...Ch. 3 - Balance the following equations: (a)...Ch. 3 - Balance the following equations: (a)...Ch. 3 - Write balanced equations for the reaction of...Ch. 3 - Write balanced equations for the reaction of...Ch. 3 - Write a balanced equation for (a) the combustion...Ch. 3 - Write a balanced equation for the reaction between...Ch. 3 - Cyanogen gas, C2N2, has been found in the gases of...Ch. 3 - Ammonia reacts with a limited amount of oxygen...Ch. 3 - One way to remove nitrogen oxide (NO) from...Ch. 3 - Phosphine gas reacts with oxygen according to the...Ch. 3 - The combustion of liquid chloroethylene, C2H3Cl,...Ch. 3 - Sand is mainly silicon dioxide. When sand is...Ch. 3 - When copper(II) oxide is heated in hydrogen gas,...Ch. 3 - Prob. 60QAPCh. 3 - Prob. 61QAPCh. 3 - When corn is allowed to ferment, the fructose in...Ch. 3 - Consider the hypothetical reaction...Ch. 3 - Consider the hypothetical reaction...Ch. 3 - When solid phosphorus (P4) reacts with oxygen gas,...Ch. 3 - Chlorine and fluorine react to form gaseous...Ch. 3 - When potassium chlorate is subjected to high...Ch. 3 - When iron and steam react at high temperatures,...Ch. 3 - When solid silicon tetrachloride reacts with...Ch. 3 - The first step in the manufacture of nitric acid...Ch. 3 - Tin(IV) chloride is used as an external coating on...Ch. 3 - A student prepares phosphorous acid, H3PO3, by...Ch. 3 - Cisplatin, Pt(NH3)2Cl2, is a chemotherapeutic...Ch. 3 - Magnesium ribbon reacts with acid to produce...Ch. 3 - Iron reacts with oxygen. Different masses of iron...Ch. 3 - Acetic acid (HC2H3O2) can be prepared by the...Ch. 3 - Prob. 77QAPCh. 3 - The reaction between compounds made up of A...Ch. 3 - Represent the following equation pictorially (see...Ch. 3 - Nitrogen reacts with hydrogen to form ammonia....Ch. 3 - Consider the following diagram, where atom X is...Ch. 3 - Box A contains 36 atoms of arsenic (As) and 27...Ch. 3 - One mol of ammonia reacts with 1.00 mol of oxygen...Ch. 3 - Suppose that the atomic mass of C-12 is taken to...Ch. 3 - Suppose that Si28(1428Si) is taken as the standard...Ch. 3 - Answer the questions below, using LT (for is less...Ch. 3 - Determine whether the statements given below are...Ch. 3 - Chlorophyll, the substance responsible for the...Ch. 3 - By x-ray diffraction it is possible to determine...Ch. 3 - A 5.025-g sample of calcium is burned in air to...Ch. 3 - A mixture of potassium chloride and potassium...Ch. 3 - A sample of an oxide of vanadium weighing 4.589 g...Ch. 3 - A sample of cocaine, C17H21O4N, is diluted with...Ch. 3 - A 100.0-g mixture made up of NaCl03, Na2CO3, NaCl,...Ch. 3 - An alloy made up of iron (52.6%), nickel (38.0%),...
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- 3.105 Nitric acid is often sold and transported as a concentrated 16 M aqueous solution. How many gallons of such a solution would be needed to contain the roughly 2.1109 pounds of HNO3 produced annually in the United States?arrow_forwardPropane, C3H8, is the fuel of choice in a gas barbecue. When burning, the balanced equation is C3H8+5O23CO2+4H2O a What is the limiting reactant in cooking with a gas grill? b If the grill will not light and you know that you have an ample flow of propane to the burner, what is the limiting reactant? c When using a gas grill you can sometimes turn the gas up to the point at which the flame becomes yellow and smokey. In terms of the chemical reaction, what is happening?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
- 4.44 Industrial production of hydrogen gas uses the reaction shown below. If 1.00 metric ton of propane reacting with excess water yields 270 kg of H2, what is the percentage yield? C3H8(g)+3H2O(l)3CO(g)+7H2(g)arrow_forwardHow many moles of beryllium (Be) are needed to completely react with 10.0 moles of N2 in the synthesis of the compound Be3N2?arrow_forwardTungsten (W) metal, which is used to make incandescent bulb filaments, is produced by the reaction WO3+3H23H2O+W How many grams of H2 are needed to produce 1.00 g of W?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_forwardThe active ingredient in some antiperspirants is aluminum chlorohydrate, Al2(OH)5Cl. Analysis of a 2.000-g sample of antiperspirant yields 0.334 g of aluminum. What percent (by mass) of aluminum chlorohydrate is present in the antiperspirant? (Assume that there are no other compounds containing aluminum in the antiperspirant.)arrow_forward3.122 What type of reasoning were we using when we developed the equation for dilution, MiVi=MfVf ?arrow_forward
- Which molecule has a molecular mass of 28.05 amu?arrow_forwardYou take 1.00 g of an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen), burn it in air, and collect 2.20 g CO2 and 0.400 g H2O. You know that the molar mass of aspirin is between 170 and 190 g/mol. Reacting 1 mole of salicylic acid with I mole of acetic anhydride (C4H6O3) gives you 1 mole of aspirin and 1 mole of acetic acid (C2H4O2). Use this information to determine the molecular formula of salicylic acid.arrow_forward4.12 In petroleum refining, hydrocarbons are often manipulated by reacting them with H2(g). If hexene, C6H12, is reacted with hydrogen to form hexane, C6H14, how many moles of hydrogen are needed to react with 453 moles of hexene?arrow_forward
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