Chemistry
14th Edition
ISBN: 9781264243709
Author: Chang, Raymond
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 4, Problem 4.69QP
Calculate the volume in milliliters of a solution required to provide the following: (a) 2.14 g of sodium chloride from a 0.270 M solution, (b) 4.30 g of ethanol from a 1.50 M solution, (c) 0.85 g of acetic acid (CH3COOH) from a 0.30 M solution.
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111
States of Matter
Understanding conceptual components of the enthalpy of solution
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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
Chemistry
Ch. 4.1 - Prob. 1RCFCh. 4.1 - Predict whether the following compounds are a...Ch. 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. 4.2 - Classify each of the following compounds as...Ch. 4.2 - Prob. 3RCFCh. 4.3 - Classify each of the following species as a...Ch. 4.3 - Write a molecular equation, an ionic equation, and...Ch. 4.3 - Which of the diagrams (a)(c) best represents a...
Ch. 4.3 - Identify the Brnsted acid and Brnsted base in the...Ch. 4.3 - Write the net ionic equation for the following...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. 4.4 - Prob. 2RCFCh. 4.5 - Prob. 7PECh. 4.5 - Prob. 8PECh. 4.5 - Prob. 9PECh. 4.5 - Prob. 1RCFCh. 4.5 - Prob. 2RCFCh. 4.5 - What mass of Ca(NO3)2 in grams is needed to...Ch. 4.6 - A sample of 0.3220 g of an ionic compound...Ch. 4.6 - Prob. 1RCFCh. 4.7 - How many grams of KHP are needed to neutralize...Ch. 4.7 - Prob. 12PECh. 4.7 - Prob. 2RCFCh. 4.8 - Prob. 13PECh. 4.8 - If a solution of a reducing agent is titrated with...Ch. 4.8 - The concentration of a KMnO4 solution can be...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 - Describe the basic steps involved in diluting a...Ch. 4 - Write the equation that enables us to calculate...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. 4.65QPCh. 4 - Prob. 4.66QPCh. 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. 4.70QPCh. 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 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. 4.170QPCh. 4 - Prob. 4.171QPCh. 4 - Prob. 4.172QPCh. 4 - Muriatic acid, a commercial-grade hydrochloric...Ch. 4 - Because acid-base and precipitation reactions...
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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