Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Chapter 3, Problem 43QAP
Hexamethylenediamine
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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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- When the supply of oxygen is limited, iron metal reacts with oxygen to produce a mixture of FeO and Fe2O3. In a certain experiment, 20.00 g iron metal was reacted with 11.20 g oxygen gas. After the experiment, the iron was totally consumed, and 3.24 g oxygen gas remained. Calculate the amounts of FeO and Fe2O3 formed in this experiment.arrow_forwardSaccharin is the active ingredient in many sweeteners used today. It is made up of carbon, hydrogen, oxygen, sulfur, and nitrogen. When 7.500 g of saccharin are burned in oxygen, 12.6 g CO2, 1.84 g H2O, and 2.62 g SO2 are obtained. Another experiment using the same mass of sample (7.500 g) shows that saccharin has 7.65% N. What is the simplest formula for saccharin?arrow_forwardA sample of an oxide of vanadium weighing 4.589 g was heated with hydrogen gas to form water and another oxide of vanadium weighing 3.782 g. The second oxide was treated further with hydrogen until only 2.573 g of vanadium metal remained. (a) What are the simplest formulas of the two oxides? (b) What is the total mass of water formed in the successive reactions?arrow_forward
- Two general chemistry students working together in the lab weigh out 0.832 g of CaCl2 2 H2O into a crucible. After heating the sample for a short time and allowing the crucible to cool, the students determine that the sample has a mass of 0.739 g. They then do a quick calculation. On the basis of this calculation, what should they do next? (a) Congratulate themselves on a job well done. (b) Assume the bottle of CaCl2 2 H2O was mislabeled; it actually contained something different. (c) Heat the crucible again, and then reweigh it.arrow_forward3.116 The simplest approximate chemical formula for the human body could be written as C728H4850O1970N104Ca24P16K4S4Na3Cl2Mg. Based on this formula, describe how you would rank by mass the ten most abundant elements in the human body.arrow_forwardYou combine 1.25 g of germanium, Ge, with excess chlorine, Cl2. The mass of product, GexCly, is 3.69 g. What is the formula of the product, CexCly?arrow_forward
- Chalky, white crystals in mineral collections are often labeled borax, which has the molecular formula Na2B4O7 10H2O, when actually they are partially dehydrated samples with the molecular formula Na2B4O7 5H2O, which is more stable under the storage conditions. Real crystals of borax are colorless and transparent. (a) Calculate the percent mass that the mineral has lost when it partially dehydrates. (b) Is the percent boron by mass the same in both compounds?arrow_forwardStibnite, Sb2S3, is a dark gray mineral from which antimony metal is obtained. What is the mass percent of antimony in the sulfide? If you have 1.00 kg of an ore that contains 10.6% antimony, what mass of Sb2S3 (in grams) is in the ore?arrow_forwardYou have a pure sample of apholate, C12H24N9P3, a highly effective commercial insecticide. Calculate the molar mass of apholate. Calculate the mass of N in 100. g apholate. A sample containing 250.0 mg apholate is sprayed on an agricultural field. Calculate the mass of phosphorus in this sample of apholate; express your result in grams. Calculate the number of phosphorus atoms in this sample of apholate.arrow_forward
- An adult human body contains 6.0 L blood, which contains about 15.5 g hemoglobin per 100.0 mL blood. The molar mass of hemoglobin is approximately 64,500 g/mol and there is 4 mol iron per 1 mol hemoglobin. A news item claims that there is sufficient iron in the hemoglobin of the body that this iron, if it were in the form of metallic iron, could make a 3-in. iron nail that weighs approximately 3.7 g. Show sufficient calculations to either support or refute the claim.arrow_forwardCacodyl, a compound containing arsenic, was reported in 1842 by the German chemist Robert Wilhelm Bunsen. It has an almost intolerable garlic-like odor. Its molar mass is 210 g/mol, and it is 22.88% C, 5.76% H, and 71.36% As. Determine its empirical and molecular formulas.arrow_forwardGallium arsenide, GaAs, has gained widespread use in semiconductor devices that convert light and electrical signals in fiber-optic communications systems. Gallium consists of 60.% 69Ga and 40.% 71Ga. Arsenic has only one naturally occurring isotope, 75As. Gallium arsenide is a polymeric material, but its mass spectrum shows fragments with the formulas GaAs and Ga2As2. What would the distribution of peaks look like for these two fragments?arrow_forward
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