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The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(Il) cation. Copper(II) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO3 + 8H* → 3Cu²+ (aq) + 4H2O+ 2NO 2. Cu²+ (aq) + 2OH¯(aq) → Cu(OH),(s) 3. Cu(OH),(s) → CuO(s) + H2O 4. CuO(s) + 2H* → Cu²*(aq) + H2O 5. Cu²* (aq) + Zn(s) → Zn²*(aq) + Cu(s) 2+ 2+ Assume that you want to carry out a sequence of cycle reactions. In order to use the right mount of reagents, present answers to the following questions. Question 1 Question 2 Question 3 How many grams of zinc metal are needed to completely regenerate 1.19 g of copper in the fifth step in the cycle? By how much is zinc oxidized in the fifth reaction?

The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(Il) cation. Copper(II) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO3 + 8H* → 3Cu²+ (aq) + 4H2O+ 2NO 2. Cu²+ (aq) + 2OH¯(aq) → Cu(OH),(s) 3. Cu(OH),(s) → CuO(s) + H2O 4. CuO(s) + 2H* → Cu²*(aq) + H2O 5. Cu²* (aq) + Zn(s) → Zn²*(aq) + Cu(s) 2+ 2+ Assume that you want to carry out a sequence of cycle reactions. In order to use the right mount of reagents, present answers to the following questions. Question 1 Question 2 Question 3 How many grams of zinc metal are needed to completely regenerate 1.19 g of copper in the fifth step in the cycle? By how much is zinc oxidized in the fifth reaction?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(II) cation. Copper(II) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO, + 8H* → 3Cu²* (aq) + 4H2O+ 2NO 2. Cu (aq) + 20Н (аq) —> Сu(ОН),(s) 3. Cu(OH),(s) –→ CuO(s) + H2O 4. CuO(s) + 2H → Cu²* (aq) + H2O 5. Cu* (aq) + Zn(s) → Zn²*(aq) + Cu(s) 2+ 2+ 2+ cycle reactions. amount of reagents, present answers to the following questions. Assume that you wa carry out a sequence ord use the right Question 1 Question 2 Question 3 How many grams of zinc metal are needed to completely regenerate 1.19 g of copper in the fifth step in the cycle? By how much is zinc oxidized in the fifth reaction?
Transcribed Image Text:The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(II) cation. Copper(II) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO, + 8H* → 3Cu²* (aq) + 4H2O+ 2NO 2. Cu (aq) + 20Н (аq) —> Сu(ОН),(s) 3. Cu(OH),(s) –→ CuO(s) + H2O 4. CuO(s) + 2H → Cu²* (aq) + H2O 5. Cu* (aq) + Zn(s) → Zn²*(aq) + Cu(s) 2+ 2+ 2+ cycle reactions. amount of reagents, present answers to the following questions. Assume that you wa carry out a sequence ord use the right Question 1 Question 2 Question 3 How many grams of zinc metal are needed to completely regenerate 1.19 g of copper in the fifth step in the cycle? By how much is zinc oxidized in the fifth reaction?
The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(II) cation. Copper(I) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO3 + 8H* → 3Cu²+ (aq) + 4H2O+ 2NO 2. Cu?* (aq) + 20H (aq) → Cu(OH),(s) 3. Cu(OH),(s) → CuO(s) + H2O 4. CuO(s) + 2H → Cu²* (aq) + H2O 5. Cu** (aq) + Zn(s) → Zn²+(aq) + Cu(s) 2+ Assume that you want to carry out a sequence of cycle reactions. In order to use the right amount of reagents, present answers to the following questions. Question 1 Question 2 How many grams of copper(II) oxide will form from 12.0 mmol of copper(II) hydroxide when the third step of the cycle goes to completion? What volume of 6.0M H2SO4 is required to completely convert all obtained copper(II) oxide to copper(II) cation in the fourth step of the cycle? mL
Transcribed Image Text:The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(II) cation. Copper(I) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are 1. 3Cu(s) + 2NO3 + 8H* → 3Cu²+ (aq) + 4H2O+ 2NO 2. Cu?* (aq) + 20H (aq) → Cu(OH),(s) 3. Cu(OH),(s) → CuO(s) + H2O 4. CuO(s) + 2H → Cu²* (aq) + H2O 5. Cu** (aq) + Zn(s) → Zn²+(aq) + Cu(s) 2+ Assume that you want to carry out a sequence of cycle reactions. In order to use the right amount of reagents, present answers to the following questions. Question 1 Question 2 How many grams of copper(II) oxide will form from 12.0 mmol of copper(II) hydroxide when the third step of the cycle goes to completion? What volume of 6.0M H2SO4 is required to completely convert all obtained copper(II) oxide to copper(II) cation in the fourth step of the cycle? mL
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