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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781337399074
BuyFind

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781337399074

Solutions

Chapter
Section
Chapter 4, Problem 39PS
Textbook Problem

If 6.73 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar concentration of the sodium carbonate? What are the molar concentrations of the Na+ and CO32– ions?

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Chapter 4 Solutions

Chemistry & Chemical Reactivity
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Ch. 4.1 - What mass of oxygen, O2, is required to completely...Ch. 4.2 - The thermite reaction produces iron metal and...Ch. 4.4 - One method for determining the purity of a sample...Ch. 4.4 - A 0523-g sample of the unknown compound CxHy was...Ch. 4.4 - A 0.1342-g sample of a compound composed of C, H,...Ch. 4.5 - Sodium bicarbonate, NaHCO3, is used in baking...Ch. 4.5 - An experiment calls for you to use 250. mL of 1.00...Ch. 4.6 - (a) What is the pH of a solution of HCI in which...Ch. 4.7 - If you combine 75.0 mL of 0.350 M HCl and an...Ch. 4.8 - A 25.0-mL sample of vinegar (which contains the...Ch. 4.8 - Hydrochloric acid. HCl, with a concentration of...Ch. 4.8 - An unknown monoprotic acid reacts with NaOH...Ch. 4.8 - Vitamin C, ascorbic acid (C6HgO6)(molar mass 176.1...Ch. 4.9 - A solution of copper(II) ions has an absorbance of...Ch. 4.9 - Methyl methacrylate is used to prepare plastics...Ch. 4.9 - Excess KI is added to a 100.0-mL sample of a soft...Ch. 4.9 - Calculate the chloride ion concentration in a...Ch. 4.9 - Identify the factor labeled 4 in the strategy...Ch. 4.9 - Identify the factor labeled 3 in this strategy...Ch. 4.9 - Calculate the volume of water obtained from 1.00...Ch. 4.9 - For Further Thought: The density of hydrazine,...Ch. 4 - The reaction of iron(III) oxide with aluminum to...Ch. 4 - What mass of HCI, in grams, is required to react...Ch. 4 - Like many metals, aluminum reacts with a halogen...Ch. 4 - The balanced equation for the reduction of iron...Ch. 4 - Methane, CH4, burns in oxygen. (a) What are the...Ch. 4 - The formation of water-Insoluble silver chloride...Ch. 4 - The metals industry was a major source of air...Ch. 4 - Iron ore is converted to iron metal in a reaction...Ch. 4 - Chromium metal reacts with oxygen to give...Ch. 4 - Ethane, C2H6, burns in oxygen. (a) What are the...Ch. 4 - Sodium sulfide, Na2S, is used in the leather...Ch. 4 - Ammonia gas can be prepared by the reaction of a...Ch. 4 - The compound SF6 is made by burning sulfur in an...Ch. 4 - Disulfur dichloride, S2Cl2, is used to vulcanize...Ch. 4 - The reaction of methane and water is one way to...Ch. 4 - Aluminum chloride AlCl3, is made by treating scrap...Ch. 4 - In the thermite reaction, iron(III) oxide is...Ch. 4 - Aspirin, C6H4 (OCOCH3) CO3H, is produced by the...Ch. 4 - In Example 4.2, you found that a particular...Ch. 4 - Ammonia gas can be prepared by the following...Ch. 4 - The deep blue compound Cu(NH3)4S04 is made by the...Ch. 4 - Black smokers are found in the depths of the...Ch. 4 - The reaction of methane and water is one way to...Ch. 4 - Methanol, CH3OH, can be prepared from carbon...Ch. 4 - A mixture of CuSO4 and CuSO4.5 H2O has a mass of...Ch. 4 - A 2.634-g sample containing impure CuCl2 2 H2O was...Ch. 4 - A sample of limestone and other soil materials was...Ch. 4 - At higher temperatures, NaHCO3is converted...Ch. 4 - Nickel(II) sulfide, NiS, occurs naturally as the...Ch. 4 - The aluminum in a 0.764-g sample of an unknown...Ch. 4 - Styrene, the building block of polystyrene,...Ch. 4 - Mesitylene is a liquid hydrocarbon Burning 0.115 g...Ch. 4 - Naphthalene is a hydrocarbon that once was used in...Ch. 4 - Azulene is a beautiful blue hydrocarbon. If 0.106...Ch. 4 - An unknown compound has the formula CxHyOz. You...Ch. 4 - An unknown compound has the formula CxHyOz. You...Ch. 4 - Nickel forms a compound with carbon monoxide,...Ch. 4 - To find the formula of a compound composed of iron...Ch. 4 - If 6.73 g of Na2CO3 is dissolved in enough water...Ch. 4 - Some potassium dichromate (K2Cr2O7), 2.335 g, is...Ch. 4 - What is the mass of solute, in grams, in 250, mL...Ch. 4 - What is the mass of solute, in grams, in 125 mL of...Ch. 4 - What volume of 0123 M NaOH, in milliliters,...Ch. 4 - What volume of 2.06 M KMnO4, in liters, contains...Ch. 4 - Identify the ions that exist in each aqueous...Ch. 4 - Identify the ions that exist in each aqueous...Ch. 4 - An experiment in your laboratory requires 500. mL...Ch. 4 - What mass of oxalic acid, H2C2O4, is required to...Ch. 4 - If you dilute 25.0 mL of 1.50 M hydrochloric acid...Ch. 4 - If 4.00 mL of 0.0250 M CuSO4 is diluted to 10.0 mL...Ch. 4 - Which of the following methods would you use to...Ch. 4 - Which of the following methods would you use to...Ch. 4 - You have 250. mL of 0.136 M HCl. Using a...Ch. 4 - Suppose you have 100.00 mL of a solution of a dye...Ch. 4 - A table wine has a pH of 3.40. What is the...Ch. 4 - A saturated solution of milk of magnesia, Mg(OH)2,...Ch. 4 - What is the hydronium ion concentration of a...Ch. 4 - What is the hydronium ion concentration of a 1.2 ...Ch. 4 - Make the following conversions. In each case, tell...Ch. 4 - Make the following conversions. In each case, tell...Ch. 4 - What volume of 0.109 M HNO3, in milliliters, is...Ch. 4 - What mass of Na2CO3, in grams, is required for...Ch. 4 - When an electric current is passed through an...Ch. 4 - Hydrazine, N2H4, a base like ammonia, can react...Ch. 4 - In the photographic developing process, silver...Ch. 4 - You can dissolve an aluminum soft drink can in an...Ch. 4 - What volume of 0.750 M Pb(NO3)2, in milliliters,...Ch. 4 - What volume of 0.125 M oxalic acid, H2C2O4, is...Ch. 4 - What volume of 0.812 M HCI, in milliliters, is...Ch. 4 - What volume of 0.955 M HCl, in milliliters, is...Ch. 4 - If 38.55 mL of HCI is required to titrate 2.150 g...Ch. 4 - Potassium hydrogen phthalate, KHCgH4O4, is used to...Ch. 4 - You have 0.954 g of an unknown acid, H2A, which...Ch. 4 - An unknown solid acid is either citric acid or...Ch. 4 - To analyze an iron-containing compound, you...Ch. 4 - Vitamin C has the formula C6H8O6. Besides being an...Ch. 4 - A solution of a dye was analyzed by...Ch. 4 - Suppose 16.04 g of benzene, C6H6, is burned in...Ch. 4 - The metabolic disorder diabetes causes a buildup...Ch. 4 - Your body deals with excess nitrogen by excreting...Ch. 4 - The reaction of iron metal and chlorine gas to...Ch. 4 - Some metal halides react with water to produce the...Ch. 4 - The reaction of 750. g each of NH3 and O2 was...Ch. 4 - Sodium azide, an explosive chemical used in...Ch. 4 - Iodine is made by the following reaction 2...Ch. 4 - Saccharin, an artificial sweetener, has the...Ch. 4 - Boron forms a series of compounds with hydrogen,...Ch. 4 - Silicon and hydrogen form a series of compounds...Ch. 4 - A Menthol, from oil of mint, has a characteristic...Ch. 4 - Benzoquinone, a chemical used in the dye industry...Ch. 4 - Aqueous solutions of iron(II) chloride and sodium...Ch. 4 - Sulfuric acid can be prepared starting with the...Ch. 4 - In an experiment, 1.056 g of a metal carbonate,...Ch. 4 - An unknown metal reacts with oxygen to give the...Ch. 4 - Titanium(IV) oxide, TiO2, is heated in hydrogen...Ch. 4 - Potassium perchlorate is prepared by the following...Ch. 4 - A Commercial sodium "hydrosulfite" is 90.1%...Ch. 4 - What mass of lime, CaO, can be obtained by heating...Ch. 4 - The elements silver, molybdenum, and sulfur...Ch. 4 - A mixture of butene, C4Hg, and butane, is burned...Ch. 4 - Cloth can be waterproofed by coating it with a...Ch. 4 - Copper metal can be prepared by roasting copper...Ch. 4 - An Atka-Seltzer tablet contains exactly 100. mg of...Ch. 4 - Sodium bicarbonate and acetic acid react according...Ch. 4 - A noncarbonated soft drink contains an unknown...Ch. 4 - Sodium thiosulfate, Na2S2O3, is used as a fixer in...Ch. 4 - You have a mixture of oxalic acid, H2C2O4, and...Ch. 4 - (a) What is the pH of a 0.105 M HCl solution? (b)...Ch. 4 - A solution of hydrochloric acid has a volume of...Ch. 4 - One half liter (500. mL) of 2.50 M HCl is mixed...Ch. 4 - A solution of hydrochloric acid has a volume of...Ch. 4 - You place 2.56 g of CaCO3 in a beaker containing...Ch. 4 - You need to know the volume of water in a small...Ch. 4 - Calcium and magnesium carbonates occur together in...Ch. 4 - Gold can be dissolved from gold-bearing rock by...Ch. 4 - You mix 25.0 mL of 0.234 M FeCl3 with 42.5 mL of...Ch. 4 - ATOM ECONOMY: One type of reaction used in the...Ch. 4 - ATOM ECONOMY: Ethylene oxide, C2H4O, is an...Ch. 4 - Suppose you dilute 25.0 mL of a 0.110 M solution...Ch. 4 - In some laboratory analyses, the preferred...Ch. 4 - Oyster beds in the oceans require chloride ions...Ch. 4 - You wish to determine the weight percent of copper...Ch. 4 - A compound has been isolated that can have either...Ch. 4 - Chromium(III) chloride forms many compounds with...Ch. 4 - Thioridazine, C21H26N2S2, is a pharmaceutical...Ch. 4 - A herbicide contains 2,4-D...Ch. 4 - Sulfuric acid is listed in a catalog with a...Ch. 4 - Two beakers sit on a balance; the total mass is...Ch. 4 - A weighed sample of iron (Fe) is added to liquid...Ch. 4 - Let us explore a reaction with a limiting...Ch. 4 - Two students titrate different samples of the same...Ch. 4 - ATOM ECONOMY: Benzene, C6H6, is a common compound,...Ch. 4 - ATOM ECONOMY: Maleic anhydride, C4H2O3, can be...

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