Interpretation:
Write and balance the equation for the given reaction.
When copper metal reacts with nitric acid to give aqueous copper(II) nitrate, water, nitrogen monoxide as products.
Concept Introduction:
The
Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.
Reduction is the process in which either gain of electrons, oxidation number decreases, or gain hydrogen atoms takes place. An element is reduced, when oxidation number decreases.
The balanced chemical equation is the equation in which number of different atoms of elements in the reactants side is similar to the product side.
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Chapter 18 Solutions
Introductory Chemistry: A Foundation
- Manganese metal can be obtained by reaction of manganese dioxide with aluminum. 4Al(s)+3MnO2(s)2Al2O3(s)+3Mn(s) What is H for this reaction? Use the following data: 2Al(s)+32O2(g)Al2O3(s);H=1676kJMn(s)+O2(g)MnO2(s);H=520kJarrow_forwardThe Mond process for purifying nickel involves the formation of nickel tetracarbonyl, Ni(CO)4, a volatile liquid, from nickel metal and carbon monoxide. Carbon monoxide is passed over impure nickel to form nickel carbonyl vapor, which, when healed, decomposes and deposits pure nickel. Ni(s)+4CO(g)Ni(CO)4(g) Write the expression for Kc for this reaction.arrow_forwardTo what temperature must magnesium carbonate be heated to decompose it to MgO and CO2 at 1 atm? Is this higher or lower than the temperature required to decompose CaCO3? Values of Gf (in kJ/mol) are as follows: MgO(s), 601.2; MgCO3(s), 1111.7. Values of S (in J/K.) are as follows: MgO(s), 26.9; MgCO3(s), 65.9. Data for CO2 are given in Tables 6.2 and 18.1.arrow_forward
- Calculate G for the following reaction at 25C. Use data given in Tables 6.2 and 18.1. CH4(g)+2O2(g)CO2(g)+2H2O(g)arrow_forwardHydrogen sulfide, a colorless gas with a foul odor, dissociates on heating: 2H2S(g)2H2(g)+S2(g) When 0.100 mol H2S was put into a 10.0-L vessel and heated to 1132C, it gave an equilibrium mixture containing 0.0285 mol H2. What is the value of Kc at this temperature?arrow_forwardPhosphorus pentachloride, PCl5, decomposes when heated. PCl5(g)PCl3(g)+Cl2(g) If the initial concentration of PCl5 is 1.00 mol/L, what is the equilibrium composition of the gaseous mixture at 160C? The equilibrium constant Kc at 160C is 0.0211.arrow_forward
- Synthesis gas (a mixture of CO and H2) is increased in the concentration of hydrogen by passing it with steam over a catalyst. This is the so-called watergas shift reaction. Some of the CO is converted to CO2, which can be removed: CO(g)+H2O(g)CO2(g)+H2(g) Suppose you start with a gaseous mixture containing 1.00 mol CO and 1.00 mol H2O. When equilibrium is reached at 1000C, the mixture contains 0.43 mol H2. What is the molar composition of the equilibrium mixture?arrow_forwardPhosphorus pentachloride gives an equilibrium mixture of PCl5 PCl3, and Cl2 when heated. PCl5(g)PCl3(g)+Cl2(g) A 1.00-L vessel contains an unknown amount of PCl5 and 0.020 mol each of PCl3 and Cl2 at equilibrium at 250C. How many moles of PCl5 are in the vessel if Kc for this reaction is 0.0415 at 250C?arrow_forwardConsider the decomposition of dinitrogen tetroxide, N2O4, to nitrogen dioxide, NO2: N2O4(g)2NO2(g) How would you expect the spontaneity of the reaction to behave with temperature change?arrow_forward
- trong>Exercise 13.11 Calculate the volume of hydrogen produced at 1.50atmand 19Cby the reaction of 26.5gof zinc with excess hydrochloric acid according to the balanced equation msp;Zn(s)+2HCl(aq)ZnCl2(aq)+H2(g)arrow_forwardIodic acid, HIO3, can be prepared by reading iodine, I2, with concentrated nitric acid. The skeleton equation is I2(s)+NO3(q)IO3(aq)+NO2(g) Balance this equation.arrow_forwardCan you increase the amount of product in each of the following reactions by increasing the pressure? Explain. a. CO2(g)+H2(g)CO(g)+H2O(g) b. 4CuO(s)2Cu2O(s)+O2(s) c. 2SO2(g)+O2(g)2SO3(g)arrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning