Bundle: Chemistry & Chemical Reactivity, Loose-Leaf Version, 9th + OWLv2, 4 terms (24 Months) Printed Access Card
9th Edition
ISBN: 9781305367425
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 52PS
Which of the following methods would you use to prepare 300. mL of 0.500 M K2Cr2O7?
(a) Add 30.0 mL of 1.50 M K2Cr2O7 to 270. mL of water.
(b) Dilute 250. mL of 0.600 M K2Cr2O7to a volume of 300. mL.
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111
States of Matter
Understanding conceptual components of the enthalpy of solution
0/5
Ge
A small amount of acetonitrile (CH, CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These
sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.)
CH,CN
H₂O
B
88
C
Use these sketches to answer the questions in the table below.
The enthalpy of solution AH is negative
soln
when CH3CN dissolves in water. Use this
information to list the stages in order of increasing
enthalpy.
Would heat be absorbed or released if the system
moved from Stage C to D?
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
1
absorbed
O released
neither absorbed nor released.
none
O ionic bonding force
covalent bonding force…
In a system with an anodic overpotential, the variation of ŋ as a function of
the current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Find the range of current densities for which the overpotential has the same
value as when calculated for cases 1 and 2 (maximum relative difference of
5% with respect to the behavior for higher fields). To which overpotential
range does this correspond?
Data: 10 = 1.5 mA cm², T = 300°C, ẞ = 0.64, R = 8.314 J K 1 mol¹ and F = 96485
C mol-1.
Indicate 10.6 with only one significant figure.
Chapter 4 Solutions
Bundle: Chemistry & Chemical Reactivity, Loose-Leaf Version, 9th + OWLv2, 4 terms (24 Months) Printed Access Card
Ch. 4.1 - What mass of oxygen, O2, is required to completely...Ch. 4.1 - Aluminum reacts with Cl2 to form AlCl3. If you...Ch. 4.1 - Prob. 2RCCh. 4.2 - The thermite reaction produces iron metal and...Ch. 4.2 - Prob. 1RCCh. 4.3 - Aluminum carbide, Al4C3, reacts with water to...Ch. 4.3 - 2. If only 13.6 g of methane is obtained, what is...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 - Prob. 3CYU
Ch. 4.4 - A 0509-g sample of an unknown organic compound...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. 4.5 - 1. A 1.71-g sample of Ba(OH)2(s) was dissolved in...Ch. 4.5 - Prob. 2RCCh. 4.5 - 3. What volume of 0.250 M KMnO4(aq) contains 0.500...Ch. 4.6 - (a) What is the pH of a solution of HCI in which...Ch. 4.6 - Which of the solutions listed below has the lowest...Ch. 4.6 - A 0.365-g sample of HCl is dissolved in enough...Ch. 4.6 - 3. A solution has a pH of 10.54. What is the...Ch. 4.7 - Prob. 1CYUCh. 4.7 - A 25.0-mL sample of vinegar (which contains the...Ch. 4.7 - Hydrochloric acid. HCl, with a concentration of...Ch. 4.7 - An unknown monoprotic acid reacts with NaOH...Ch. 4.7 - Vitamin C, ascorbic acid (C6HgO6)(molar mass 176.1...Ch. 4.7 - Prob. 1RCCh. 4.7 - What volume of 0.250 M NaOH is required to react...Ch. 4.8 - Prob. 1CYUCh. 4.8 - Prob. 1RCCh. 4.8 - Prob. 2RCCh. 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 - Prob. 8PSCh. 4 - Chromium metal reacts with oxygen to give...Ch. 4 - Ethane, C2H6, burns in oxygen. (a) What are the...Ch. 4 - Prob. 11PSCh. 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 - Prob. 27PSCh. 4 - Prob. 28PSCh. 4 - Nickel(II) sulfide, NiS, occurs naturally as the...Ch. 4 - The aluminum in a 0.764-g sample of an unknown...Ch. 4 - Prob. 31PSCh. 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 - Prob. 42PSCh. 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 - Prob. 54PSCh. 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 - Prob. 57PSCh. 4 - Prob. 58PSCh. 4 - Prob. 59PSCh. 4 - Prob. 60PSCh. 4 - Prob. 61PSCh. 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 - Prob. 77PSCh. 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 - Prob. 83GQCh. 4 - The reaction of 750. g each of NH3 and O2 was...Ch. 4 - Sodium azide, an explosive chemical used in...Ch. 4 - Prob. 86GQCh. 4 - Prob. 87GQCh. 4 - Prob. 88GQCh. 4 - Prob. 89GQCh. 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 - Prob. 94GQCh. 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 - Prob. 104GQCh. 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 - Prob. 113GQCh. 4 - Prob. 115GQCh. 4 - Prob. 116GQCh. 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 - Prob. 119GQCh. 4 - ATOM ECONOMY: Ethylene oxide, C2H4O, is an...Ch. 4 - Suppose you dilute 25.0 mL of a 0.110 M solution...Ch. 4 - Prob. 122ILCh. 4 - Oyster beds in the oceans require chloride ions...Ch. 4 - You wish to determine the weight percent of copper...Ch. 4 - Prob. 126ILCh. 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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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY