
(a)
Interpretation:
Three
Concept introduction:
The reaction in which both oxidation and reduction reaction occur simultaneously is called a redox reaction. According to the law of conservation of mass, the mass of all the species in a reaction must be balanced. Therefore balancing is necessary to conserve the mass and even the charge must be balanced to maintain the overall charge of the reaction.
(a)

Answer to Problem 31E
The balanced equations are as follows,
Explanation of Solution
The balanced equation is defined as follows,
The reduction half cell reaction is,
The change in the oxidation number of manganese is from
The oxidation half reaction is,
The change in oxidation number of aluminum is from zero to
As the atoms other than hydrogen and oxygen are already balanced, so directly balance the oxygen atom in the reduction half reaction by adding water to right hand side,
Balance the hydrogen atoms in the reduction half reaction by adding
Balance the charge by adding appropriate number of electrons to the left hand side,
As the atoms other than hydrogen and oxygen are already balanced in the oxidation half reaction. Therefore directly balance the oxygen by adding water molecule to the left hand side.
Balance the hydrogen atoms by adding
Balance the charge by adding electrons to the right hand side,
Add the oxidation and reduction half reaction to get the final equation,
Cancel similar terms on both the sides,
To balance the reaction in basic medium,
(b)
Interpretation:
Three oxidation-reduction reactions are given. The balancing of all the reactions in basic media using half-reaction method is to be done.
Concept introduction:
The reaction in which both oxidation and reduction reaction occur simultaneously is called a redox reaction. According to the law of conservation of mass, the mass of all the species in a reaction must be balanced. Therefore balancing is necessary to conserve the mass and even the charge must be balanced to maintain the overall charge of the reaction.
(b)

Answer to Problem 31E
The balanced equations are as follows,
Explanation of Solution
The balanced equation is defined as follows,
The reduction half cell reaction is,
The change in the oxidation number of chlorine is from zero to
The oxidation half reaction is,
The change in oxidation number of chlorine is from zero to
Balance all the atoms except hydrogen and oxygen in the reduction half reaction,
As there are no oxygen or hydrogen atoms in the reaction. So, directly balance the charge by adding appropriate number of electrons to the left hand side,
Balance all the atoms except hydrogen and oxygen in the oxidation half,
Balance the oxygen atom by adding water molecule to the left hand side,
Balance hydrogen atoms by adding
Balance the charge by adding electrons to the right hand side,
Add the oxidation and reduction half reaction,
Cancel similar terms on both the sides,
In basic medium,
Simplify the equation,
(c)
Interpretation:
Three oxidation-reduction reactions are given. The balancing of all the reactions in basic media using half-reaction method is to be done.
Concept introduction:
The reaction in which both oxidation and reduction reaction occur simultaneously is called a redox reaction. According to the law of conservation of mass, the mass of all the species in a reaction must be balanced. Therefore balancing is necessary to conserve the mass and even the charge must be balanced to maintain the overall charge of the reaction.
(c)

Answer to Problem 31E
The balanced equations are as follows,
Explanation of Solution
The balanced equation is defined as follows,
The reduction half cell reaction is,
The change in the oxidation number of nitrogen is from
The oxidation half reaction is,
The change in oxidation number of aluminum is from zero to
All the elements except hydrogen and oxygen are already balanced so directly balance the oxygen in the reduction half reaction by adding water to right hand side,
Balance the hydrogen atoms in the reduction half reaction by adding
Balance the charge by adding appropriate number of electrons to the left hand side,
All the atoms except hydrogen and oxygen in oxidation half reaction are already balanced. So, directly balance oxygen atom by adding water molecule to the left hand side,
Balance the hydrogen atom by adding
Balance the charge by adding electrons to the right hand side,
Multiply equation (6) by
Cancel similar terms on both the sides,
In basic medium,
The final equation is,
Want to see more full solutions like this?
Chapter 17 Solutions
EBK CHEMISTRY: AN ATOMS FIRST APPROACH
- 1. Part 1: Naming Organic Compounds он H₁C-C-CH3 CH3 Br CI CI 2. Br-CH-CH-CH₂ H₂C-CH-C= -CH-CH2-CH3 3. HC-CH-CH-C-OH 5. H₂C-CH-CH₂-OH 7. OH 4. CH CH₂-CH₂ 6. сно CH-CH-CH-CH₂-CH₂ H₁₂C-CH-CH-CH-CH₁₂-CH₁₂ 8. OHarrow_forward11 Organic Chemistry Organic Nomenclature Practice Name/Functional Group n-butane Formula Structural Formula (1) C4tt10 H3C C- (2) CH3CH2CH2 CH 3 H₂ -CH3 Н2 name & functional group (1) and (2) OH H₁₂C Н2 name only (1) and (2) name only (1) and (2) H₁C - = - CH₂ Н2 HC=C-C CH3arrow_forwardUnder aqueous basic conditions, nitriles will react to form a neutral organic intermediate 1 that has an N atom in it first, and then they will continue to react to form the final product 2: NC H₂O он- H₂O 1 2 OH Draw the missing intermediate 1 and the final product 2 in the box below. You can draw the two structures in any arrangement you like. Click and drag to start drawing a structure.arrow_forward
- Assign these COSY Spectrumarrow_forwardAssign these C-NMR and H-NMR Spectrumarrow_forwardPredict the product of this organic reaction: IZ + HO i P+H₂O Specifically, in the drawing area below draw the skeletal ("line") structure of P. If there is no reasonable possibility for P, check the No answer box under the drawing area. No Answer Click and drag to start drawing a structure. ☐ :arrow_forward
- Predict the products of this organic reaction: 0 O ----- A + KOH ? CH3-CH2-C-O-CH2-C-CH3 Specifically, in the drawing area below draw the condensed structure of the product, or products, of this reaction. (If there's more than one product, draw them in any arrangement you like, so long as they aren't touching.) If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. No reaction Click anywhere to draw the first atom of your structure. X ⑤ èarrow_forwardPredict the products of this organic reaction: O CH3 + H2O + HCI A A? CH3-CH2-C-N-CH3 Specifically, in the drawing area below draw the condensed structure of the product, or products, of this reaction. If there's more than one product, draw them in any arrangement you like, so long as they aren't touching. If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. No Reaction Click anywhere to draw the first atom of your structure.arrow_forwardWhat is the missing reactant in this organic reaction? R+ HO-C-CH2-CH3 0= CH3 CH3 —CH, C−NH—CH CH3 + H₂O Specifically, in the drawing area below draw the condensed structure of R. If there is more than one reasonable answer, you can draw any one of them. If there is no reasonable answer, check the No answer box under the drawing area. Note for advanced students: you may assume no products other than those shown above are formed. No Answer Click anywhere to draw the first atom of your structure. €arrow_forward
- 个 CHEM&131 9267 - $25 - Intro to Mail - Hutchison, Allison (Student x Aktiv Learnin https://app.aktiv.com Draw the product of the reaction shown below. Ignore inorganic byproducts. + Na2Cr2O7 Acetone, H2SO4 Type here to search Dryng OH W Prarrow_forwardPredict the products of this organic reaction: OH + NaOH A? Specifically, in the drawing area below draw the skeletal ("line") structure of the product, or products, of this reaction. (If there's more than one product, draw them in any arrangement you like, so long as they aren't touching.) If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. No reaction Click and drag to start drawing a structure. ✓ Sarrow_forwardPredict the products of this organic reaction: CH3-C-O-CH2-CH2-C-CH3 + H₂O ? A Specifically, in the drawing area below draw the condensed structure of the product, or products, of this reaction. (If there's more than one product, draw them in any arrangement you like, so long as they aren't touching.) If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. No reaction Click anywhere to draw the first atom of your structure. :☐ darrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning





