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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 3, Problem 76GQ
Textbook Problem
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Identify, from each list below, the compound or compounds that will dissolve in water to give a solution that strongly conducts electricity.

(a) CuCO3, Cu(OH)2, CuCl2, CuO

(b) HCI, H2C2O4, H3PO4, H2SO4

(a)

Interpretation Introduction

Interpretation:

The compound (s) that strong conduct electricity when dissolved in water should be identified.

Concept introduction:

Acids can donate the H+ ion, base can accept the H+ ion or donate the OH- ion,

strong acids or strong bases are ionize in water very easily, weak acid or weak bases are ionize very slowly.

strong acid and sarong base are one that completely ionizes (dissociates) in a solution (provided there is sufficient solvent).  In water, acid HA dissolves and gives H+ (as hydronium ion H3O+ ion).  Bases dissolve and gives OH- ion.

Conductor of electricity depends on the movements of the ions in solution, ions gets separated, it behaves as strong conductor of electricity.  If the ions not completely dissociate that will be a very weak conductor of electricity

Strong electricity conductors are strong acids and weak bases.

Weak electricity conductors are weak acid and weak bases.

Soluble compounds in water

Almost all the salts of Na+, K+, NH4+,(NO3-),(ClO3-),(ClO4-)and(CH3CO2-) are soluble.

Almost all the salts of Cl-, Br-, I-(halides) are soluble.  But some of the halides are (Ag+, Hg22+, Pb2+) are insoluble.

Salts of F- are soluble.  But some of the fluoride salt of Mg2+, Ca2+, Sr2+, Ba2+, Pb2+ are insoluble.

Salts of sulfate (SO42-) are soluble.  But sulfates of Ca2+, Sr2+, Ba2+, Pb2+, Ag+, are insoluble.

Insoluble compounds in water:

Most of the salts of (CO32-),(PO43-),(C2O42-),(CrO42-)and(S2-) are insoluble but some of the salts of NH4+, alkali metal cations and BaS are soluble.

Most of the metal hydroxides and oxides are insoluble in water bit some of the alkali metal hydroxides, Ba(OH)2and Sr(OH)2 are soluble in water.

Water soluble compounds are ionize in water and conduct the electricity, strongly conduct the electricity compounds are completely soluble in water.  Slightly soluble compounds are weak conductor of electricity.

Explanation of Solution

CuCl2 is very strong conductor of electricity because, CuCl2 will dissociate (ionize) in water.  Therefore CuCO3,Cu(OH)2, CuO are weak conductor of electricity because which are not soluble in water.  Most of the salts of (CO32-),(

(b)

Interpretation Introduction

Interpretation:

The compound (s) that strong conduct electricity when dissolved in water should be identified.

Concept introduction:

Acids can donate the H+ ion, base can accept the H+ ion or donate the OH- ion,

strong acids or strong bases are ionize in water very easily, weak acid or weak bases are ionize very slowly.

strong acid and sarong base are one that completely ionizes (dissociates) in a solution (provided there is sufficient solvent).  In water, acid HA dissolves and gives H+ (as hydronium ion H3O+ ion).  Bases dissolve and gives OH- ion.

Conductor of electricity depends on the movements of the ions in solution, ions gets separated, it behaves as strong conductor of electricity.  If the ions not completely dissociate that will be a very weak conductor of electricity

Strong electricity conductors are strong acids and weak bases.

Weak electricity conductors are weak acid and weak bases.

Soluble compounds in water

Almost all the salts of Na+, K+, NH4+,(NO3-),(ClO3-),(ClO4-)and(CH3CO2-) are soluble.

Almost all the salts of Cl-, Br-, I-(halides) are soluble.  But some of the halides are (Ag+, Hg22+, Pb2+) are insoluble.

Salts of F- are soluble.  But some of the fluoride salt of Mg2+, Ca2+, Sr2+, Ba2+, Pb2+ are insoluble.

Salts of sulfate (SO42-) are soluble.  But sulfates of Ca2+, Sr2+, Ba2+, Pb2+, Ag+, are insoluble.

Insoluble compounds in water:

Most of the salts of (CO32-),(PO43-),(C2O42-),(CrO42-)and(S2-) are insoluble but some of the salts of NH4+, alkali metal cations and BaS are soluble.

Most of the metal hydroxides and oxides are insoluble in water bit some of the alkali metal hydroxides, Ba(OH)2and Sr(OH)2 are soluble in water.

Water soluble compounds are ionize in water and conduct the electricity, strongly conduct the electricity compounds are completely soluble in water.  Slightly soluble compounds are weak conductor of electricity.

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Chapter 3 Solutions

Chemistry & Chemical Reactivity
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Ch. 3.5 - In each of the following cases, aqueous solutions...Ch. 3.5 - Aqueous solutions of the two reactants listed...Ch. 3.5 - What is the net ionic equation for the reaction of...Ch. 3.6 - (a) Write a balanced equation for the reaction...Ch. 3.6 - Write the balanced, overall equation and the net...Ch. 3.6 - Which of the following is a strong add in aqueous...Ch. 3.6 - 2. The hydrogen phosphate ion is amphiprotic....Ch. 3.6 - What is the net ionic equation for the reaction of...Ch. 3.6 - Identify the basic oxide from those listed below....Ch. 3.7 - Barium carbonate, BaC0)3, is used in the brick,...Ch. 3.7 - Which of the following compounds, when treated...Ch. 3.8 - Assign an oxidation number to the underlined atom...Ch. 3.8 - The following reaction is used in a device for...Ch. 3.8 - 1. What is the oxidation number of Mn in...Ch. 3.8 - 2. Which of the following reactions are...Ch. 3.8 - 3. In which of the manganese compounds below does...Ch. 3.9 - Classify each of the following reactions as a...Ch. 3.9 - 1. Sometimes a reaction can fall in more than one...Ch. 3.9 - Use the following mass percentages to determine...Ch. 3.9 - What is the percent by mass of each element in...Ch. 3.9 - Assuming the charges on the yttrium and barium...Ch. 3.9 - The reaction of Y2O3, BaCO3, and CuO produces...Ch. 3.9 - The percentage of oxygen in YBCO is adjusted by...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Balance the following equations: (a) Cr(s) + O2(g)...Ch. 3 - Balance the following equations: (a) Cr(s) +...Ch. 3 - Balance the following equations, and name each...Ch. 3 - Balance the following equations, and name each...Ch. 3 - Equal amounts of two acidsHCl and HCO2H (formic...Ch. 3 - Two aqueous solutions were prepared, one...Ch. 3 - What is an electrolyte? How can you differentiate...Ch. 3 - Name and give the formulas of two acids that are...Ch. 3 - Which compound or compounds in each of the...Ch. 3 - Which compound or compounds in each of the...Ch. 3 - The following compounds are water-soluble. What...Ch. 3 - The following compounds are water-soluble. What...Ch. 3 - Decide whether each of the following is...Ch. 3 - Decide whether each of the following is...Ch. 3 - Balance the equation for the following...Ch. 3 - Balance the equation for the following...Ch. 3 - Predict the products of each precipitation...Ch. 3 - Predict the products of each precipitation...Ch. 3 - Write a balanced equation for the ionization of...Ch. 3 - Write a balanced equation for the ionization of...Ch. 3 - Oxalic acid, H2C2O4, which is found in certain...Ch. 3 - Phosphoric add can supply one, two, or three H3O+...Ch. 3 - Write a balanced equation for reaction of the...Ch. 3 - Write a balanced equation for the reaction of...Ch. 3 - Complete and balance the equations for the...Ch. 3 - Complete and balance the equations for the...Ch. 3 - Write a balanced equation for the reaction of...Ch. 3 - Write a balanced equation for the reaction of...Ch. 3 - Write an equation that describes the equilibrium...Ch. 3 - Write an equation that describes the equilibrium...Ch. 3 - Write two chemical equations, one that shows H2O...Ch. 3 - Write two chemical equations, one in which H2PO4...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Balance each of the following equations, and then...Ch. 3 - Write balanced net ionic equations for the...Ch. 3 - Write balanced net ionic equations for the...Ch. 3 - Siderite is a mineral consisting largely of...Ch. 3 - The mineral rhodothrosite is manganese()...Ch. 3 - Write an overall, balanced equation for the...Ch. 3 - Write an overall, balanced equation for the...Ch. 3 - Determine the oxidation number of each element in...Ch. 3 - Determine the oxidation number of each element in...Ch. 3 - Which two of the following reactions are...Ch. 3 - Which two of the following reactions are...Ch. 3 - In the following reactions, decide which reactant...Ch. 3 - In the following reactions, decide which reactant...Ch. 3 - Balance the following equations, and then classify...Ch. 3 - Balance the following equations, and then dassify...Ch. 3 - Classify each of the following reactions as a...Ch. 3 - Classify each of the following reactions as a...Ch. 3 - Balance each of the following equations, and...Ch. 3 - Complete and balance the equations below, and...Ch. 3 - The products formed in several reactions are given...Ch. 3 - The products formed in several reactions are given...Ch. 3 - Balance the following equations: (a) for the...Ch. 3 - Balance the following equations: (a) for the...Ch. 3 - Give a formula for each of the following...Ch. 3 - Give the formula for each of the following...Ch. 3 - Indicate which of the following copper(II) salts...Ch. 3 - Name two anions that combine with Al3+ ion to...Ch. 3 - Write the net ionic equation and identify the...Ch. 3 - Identify and name the water-insoluble product in...Ch. 3 - Bromine is obtained from sea water by the...Ch. 3 - Identify each of the blowing substances as a...Ch. 3 - The mineral dolomite contains magnesium...Ch. 3 - Aqueous solutions of ammonium sulfide, (NH4)2S,...Ch. 3 - Identify the primary species (atoms, molecules, or...Ch. 3 - (a) Name and give formulas for two water-soluble...Ch. 3 - Balance equations for these reactions that occur...Ch. 3 - For each reaction, write an overall, balanced...Ch. 3 - You are given mixtures containing the following...Ch. 3 - Identify, from each list below, the compound or...Ch. 3 - Identify, from each list below, the compound or...Ch. 3 - Write net ionic equations for the following...Ch. 3 - Gas evolution was observed when a solution of Na2S...Ch. 3 - The following reaction can be used to prepare...Ch. 3 - If you have silverware in your home, you know it...Ch. 3 - Suppose you wish to prepare a sample of magnesium...Ch. 3 - A Suggest a laboratory method for preparing barium...Ch. 3 - The Toliens test for the presence of reducing...Ch. 3 - There are many ionic compounds that dissolve in...Ch. 3 - Most naturally occurring acids are weak acids....Ch. 3 - You want to prepare barium chloride, BaC12, using...Ch. 3 - Describe how to prepare BaSO4, barium sulfate, by...Ch. 3 - A Describe how to prepare zinc chloride by (a) an...Ch. 3 - A common method for analyzing for the nickel...Ch. 3 - The presence of arsenic in a sample that may also...

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