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 38QAP
Determine the simplest formulas of the following compounds:
(a) tetraethyl lead, the banned gasoline anti-knock additive, which is composed of 29.71% C, 6.234% H, and 64.07% Pb
(b) citric acid, present in most sour fruit, which is com- posed of 37.51% C, 4.20% H, and 58.29% O
(c) cisplatin, a drug used in chemotherapy, which is composed of 9.34% N, 2.02% H, 23.36% Cl, and 65.50% Pt
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2. One of the main chemical components of chocolate is made up of the following:46.67% C, 4.48% H, 17.76% O, and the rest is N.
(A) Determine the empirical formula of this compound.
(B) If the molar mass of this compound is 180.16 g/mol, determine its molecular formula.
Determine the simplest formulas of the followingcompounds:(a) tetraethyl lead, the banned gasoline anti-knockadditive, which is composed of 29.71% C, 6.234% H, and64.07% Pb.(b) citric acid, present in most sour fruit, which iscomposed of 37.51% C, 4.20% H, and 58.29% O.(c) cisplatin, a drug used in chemotherapy, which iscomposed of 9.34% N, 2.02% H, 23.36% Cl, and 65.50% Pt.
Determine the empirical and molecular formulas of eachof the following substances:(a) Ibuprofen, a headache remedy, contains 75.69% C,8.80% H, and 15.51% O by mass and has a molar massof 206 g/mol.(b) Cadaverine, a foul-smelling substance produced bythe action of bacteria on meat, contains 58.55% C,13.81% H, and 27.40% N by mass; its molar mass is102.2 g/mol.(c) Epinephrine (adrenaline), a hormone secreted into thebloodstream in times of danger or stress, contains 59.0%C, 7.1% H, 26.2% O, and 7.7% N by mass; its molar massis about 180 amu.
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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