Chemistry
12th Edition
ISBN: 9780078021510
Author: Raymond Chang Dr., Kenneth Goldsby Professor
Publisher: McGraw-Hill Education
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Chapter 4.3, Problem 1RC
Which of the diagrams (a)–(c) best represents a weak acid? Which represents a very weak acid? Which represents a strong acid? The proton exists in water as the hydronium ion. All acids are monoprotic. (For simplicity, water molecules are not shown.)
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A block of zinc has an initial temperature of 94.2 degrees celcius and is immererd in 105 g of water at 21.90 degrees celcius. At thermal equilibrium, the final temperature is 25.20 degrees celcius. What is the mass of the zinc block? Cs(Zn) = 0.390 J/gxdegrees celcius Cs(H2O) = 4.18 J/gx degrees celcus
Potential Energy (kJ)
1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction.
AH = -950 kJ
AH = 575 kJ
(i) Cl₂ (g) + Pt (s) 2C1 (g) + Pt (s)
Ea = 1550 kJ
(ii) Cl (g)+ CO (g) + Pt (s) → CICO (g) + Pt (s)
(iii) Cl (g) + CICO (g) → Cl₂CO (g)
Ea = 2240 kJ
Ea = 2350 kJ
AH = -825 kJ
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a. Draw the potential energy diagram for the reaction. Label the data points for clarity.
The potential energy of the reactants is 600 kJ
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Reaction Progress
Can u help me figure out the reaction mechanisms for these, idk where to even start
Chapter 4 Solutions
Chemistry
Ch. 4.1 - Prob. 1RCCh. 4.2 - Classify the following ionic compounds as soluble...Ch. 4.2 - Predict the precipitate produced by mixing an...Ch. 4.2 - Which of the diagrams (a)(c) accurately describes...Ch. 4.3 - Which of the diagrams (a)(c) best represents a...Ch. 4.3 - Classify each of the following species as a...Ch. 4.3 - Write a molecular equation, an ionic equation, and...Ch. 4.4 - Assign oxidation numbers to all the elements in...Ch. 4.4 - Prob. 6PECh. 4.4 - Which of the following combination reactions is...
Ch. 4.5 - Prob. 7PECh. 4.5 - Prob. 8PECh. 4.5 - Prob. 9PECh. 4.5 - Prob. 1RCCh. 4.6 - A sample of 0.3220 g of an ionic compound...Ch. 4.6 - Prob. 1RCCh. 4.7 - How many grams of KHP are needed to neutralize...Ch. 4.7 - Prob. 12PECh. 4.8 - Prob. 13PECh. 4.8 - If a solution of a reducing agent is titrated with...Ch. 4 - Define solute, solvent, and solution by describing...Ch. 4 - What is the difference between a nonelectrolyte...Ch. 4 - Describe hydration. What properties of water...Ch. 4 - What is the difference between the following...Ch. 4 - Water is an extremely weak electrolyte and...Ch. 4 - Sodium sulfate (Na2SO4) is a strong electrolyte....Ch. 4 - Prob. 4.7QPCh. 4 - Prob. 4.8QPCh. 4 - Identify each of the following substances as a...Ch. 4 - Identify each of the following substances as a...Ch. 4 - The passage of electricity through an electrolyte...Ch. 4 - Predict and explain which of the following systems...Ch. 4 - You are given a water-soluble compound X. Describe...Ch. 4 - Explain why a solution of HCl in benzene does not...Ch. 4 - What is the difference between an ionic equation...Ch. 4 - What is the advantage of writing net ionic...Ch. 4 - Two aqueous solutions of AgNO3 and NaCl are mixed....Ch. 4 - Two aqueous solutions of KOH and MgCl2 are mixed....Ch. 4 - Characterize the following compounds as soluble or...Ch. 4 - Characterize the following compounds as soluble or...Ch. 4 - Write ionic and net ionic equations for the...Ch. 4 - Write ionic and net ionic equations for the...Ch. 4 - Which of the following processes will likely...Ch. 4 - Prob. 4.24QPCh. 4 - List the general properties of acids and bases.Ch. 4 - Give Arrheniuss and Brnsteds definitions of an...Ch. 4 - Give an example of a monoprotic acid, a diprotic...Ch. 4 - What are the characteristics of an acid-base...Ch. 4 - What factors qualify a compound as a salt? Specify...Ch. 4 - Prob. 4.30QPCh. 4 - Prob. 4.31QPCh. 4 - Identify each of the following species as a...Ch. 4 - Balance the following equations and write the...Ch. 4 - Balance the following equations and write the...Ch. 4 - Prob. 4.35QPCh. 4 - True or false: All combustion reactions are redox...Ch. 4 - Prob. 4.37QPCh. 4 - Prob. 4.38QPCh. 4 - How is the activity series organized? How is it...Ch. 4 - Use the following reaction to define redox...Ch. 4 - Prob. 4.41QPCh. 4 - What is the requirement for an element to undergo...Ch. 4 - For the complete redox reactions given here, (i)...Ch. 4 - Prob. 4.44QPCh. 4 - Arrange the following species in order of...Ch. 4 - Phosphorus forms many oxoacids. Indicate the...Ch. 4 - Give the oxidation number of the underlined atoms...Ch. 4 - Give the oxidation number for the following...Ch. 4 - Give oxidation number for the underlined atoms in...Ch. 4 - Give the oxidation number of the underlined atoms...Ch. 4 - Nitric acid is a strong oxidizing agent. State...Ch. 4 - Which of the following metals can react with...Ch. 4 - On the basis of oxidation number considerations,...Ch. 4 - Predict the outcome of the reactions represented...Ch. 4 - Classify the following redox reactions. (a)...Ch. 4 - Classify the following redox reactions. (a)...Ch. 4 - Which of the following are redox processes?...Ch. 4 - Of the following, which is most likely to be the...Ch. 4 - Write the equation for calculating molarity. Why...Ch. 4 - Describe the steps involved in preparing a...Ch. 4 - Calculate the mass of KI in grams required to...Ch. 4 - Describe how you would prepare 250 mL of a 0.707 M...Ch. 4 - Prob. 4.63QPCh. 4 - Prob. 4.64QPCh. 4 - Calculate the molarity of each of the following...Ch. 4 - Calculate the molarity of each of the following...Ch. 4 - Calculate the volume in milliliters of a solution...Ch. 4 - Prob. 4.68QPCh. 4 - What volume of 0.416 M Mg(NO3)2 should be added to...Ch. 4 - Barium hydroxide, often used to titrate weak...Ch. 4 - Describe the basic steps involved in diluting a...Ch. 4 - Write the equation that enables us to calculate...Ch. 4 - Describe how to prepare 1.00 L of 0.646 M HCl...Ch. 4 - Water is added to 25.0 mL of a 0.866 M KNO3...Ch. 4 - How would you prepare 60.0 mL of 0.200 M HNO3 from...Ch. 4 - You have 505 mL of a 0.125 M HCl solution and you...Ch. 4 - A 35.2-mL, 1.66 M KMnO4 solution is mixed with...Ch. 4 - A 46.2-mL, 0.568 M calcium nitrate [Ca(NO3)2]...Ch. 4 - Describe the basic steps involved in gravimetric...Ch. 4 - Distilled water must be used in the gravimetric...Ch. 4 - If 30.0 mL of 0.150 M CaCl2 is added to 15.0 mL of...Ch. 4 - A sample of 0.6760 g of an unknown compound...Ch. 4 - How many grams of NaCl are required to precipitate...Ch. 4 - The concentration of sulfate in water can be...Ch. 4 - Describe the basic steps involved in an acid-base...Ch. 4 - How does an acid-base indicator work?Ch. 4 - Prob. 4.87QPCh. 4 - Would the volume of a 0.10 M NaOH solution needed...Ch. 4 - A quantity of 18.68 mL of a KOH solution is needed...Ch. 4 - Calculate the concentration (in molarity) of a...Ch. 4 - Calculate the volume in milliliters of a 1.420 M...Ch. 4 - What volume of a 0.500 M HCl solution is needed to...Ch. 4 - What are the similarities and differences between...Ch. 4 - Explain why potassium permanganate (KMnO4) and...Ch. 4 - Iron(II) can be oxidized by an acidic K2Cr2O7...Ch. 4 - The SO2 present in air is mainly responsible for...Ch. 4 - Prob. 4.97QPCh. 4 - The concentration of a hydrogen peroxide solution...Ch. 4 - Oxalic acid (H2C2O4) is present in many plants and...Ch. 4 - Prob. 4.100QPCh. 4 - Iodate ion, IO3, oxidizes SO32 in acidic solution....Ch. 4 - Calcium oxalate (CaC2O4), the main component of...Ch. 4 - Prob. 4.103QPCh. 4 - Prob. 4.104QPCh. 4 - Prob. 4.105QPCh. 4 - A 5.00 102 mL sample of 2.00 M HCl solution is...Ch. 4 - Shown are two aqueous solutions containing various...Ch. 4 - Shown are two aqueous solutions containing various...Ch. 4 - Calculate the volume of a 0.156 M CuSO4 solution...Ch. 4 - Prob. 4.110QPCh. 4 - A 3.664-g sample of a monoprotic acid was...Ch. 4 - Prob. 4.112QPCh. 4 - A 15.00-mL solution of potassium nitrate (KNO3)...Ch. 4 - When a 2.50-g zinc strip was placed in a AgNO3...Ch. 4 - Calculate the mass of the precipitate formed when...Ch. 4 - Calculate the concentration of the acid (or base)...Ch. 4 - (a) Describe a preparation for magnesium hydroxide...Ch. 4 - A 1.00-g sample of a metal X (that is known to...Ch. 4 - Prob. 4.119QPCh. 4 - The molecular formula of malonic acid is C3H4O4....Ch. 4 - Prob. 4.121QPCh. 4 - A 60.0-mL 0.513 M glucose (C6H12O6) solution is...Ch. 4 - An ionic compound X is only slightly soluble in...Ch. 4 - Prob. 4.124QPCh. 4 - Prob. 4.125QPCh. 4 - Prob. 4.126QPCh. 4 - The molar mass of a certain metal carbonate, MCO3,...Ch. 4 - Prob. 4.128QPCh. 4 - You are given a soluble compound of unknown...Ch. 4 - Prob. 4.130QPCh. 4 - Prob. 4.131QPCh. 4 - Prob. 4.132QPCh. 4 - Prob. 4.133QPCh. 4 - Prob. 4.134QPCh. 4 - Prob. 4.135QPCh. 4 - Prob. 4.136QPCh. 4 - Describe in each case how you would separate the...Ch. 4 - Prob. 4.138QPCh. 4 - Prob. 4.139QPCh. 4 - A 0.8870-g sample of a mixture of NaCl and KCl is...Ch. 4 - Prob. 4.141QPCh. 4 - Prob. 4.142QPCh. 4 - Prob. 4.143QPCh. 4 - A useful application of oxalic acid is the removal...Ch. 4 - Prob. 4.145QPCh. 4 - A 0.9157-g mixture of CaBr2 and NaBr is dissolved...Ch. 4 - Prob. 4.147QPCh. 4 - A 325-mL sample of solution contains 25.3 g of...Ch. 4 - Prob. 4.149QPCh. 4 - Prob. 4.150QPCh. 4 - Prob. 4.151QPCh. 4 - Prob. 4.152QPCh. 4 - Prob. 4.153QPCh. 4 - Prob. 4.154QPCh. 4 - Prob. 4.155QPCh. 4 - Prob. 4.156QPCh. 4 - Prob. 4.157QPCh. 4 - Prob. 4.158QPCh. 4 - Prob. 4.159QPCh. 4 - Prob. 4.160QPCh. 4 - The following cycle of copper experiment is...Ch. 4 - A quantity of 25.0 mL of a solution containing...Ch. 4 - Prob. 4.163QPCh. 4 - Prob. 4.165QPCh. 4 - Prob. 4.166QPCh. 4 - Prob. 4.167QPCh. 4 - Many proteins contain metal ions for structural...Ch. 4 - Prob. 4.170IMECh. 4 - Prob. 4.171IMECh. 4 - Prob. 4.172IMECh. 4 - Muriatic acid, a commercial-grade hydrochloric...Ch. 4 - Because acid-base and precipitation reactions...
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