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(a)
Interpretation:
The electrons moles flow per mole of given reaction has to be calculated.
Concept Introduction:
An
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of
Generally, the anode compartment with oxidation components are written on the left side of the salt bridge and the cathode compartment with reduction components are notified on the right of the salt bridge. The cathode and anode are separated by using the double vertical line which actually represents the salt bridge. The species of different phases are notified by using a single vertical line in the cell notation.
(b)
Interpretation:
The mass of water and manganese dioxide produced from oxidation of 4.50 gram of zinc has to be calculated.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of chemical reaction, where both the oxidation and reduction occur at the same time. In a redox reaction, one of the reactant is oxidized and the other is reduced simultaneously.
Generally, the anode compartment with oxidation components are written on the left side of the salt bridge and the cathode compartment with reduction components are notified on the right of the salt bridge. The cathode and anode are separated by using the double vertical line which actually represents the salt bridge. The species of different phases are notified by using a single vertical line in the cell notation.
(c)
Interpretation:
The total reactant mass consumed in sub-part (b) has to be calculated.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of chemical reaction, where both the oxidation and reduction occur at the same time. In a redox reaction, one of the reactant is oxidized and the other is reduced simultaneously.
Generally, the anode compartment with oxidation components are written on the left side of the salt bridge and the cathode compartment with reduction components are notified on the right of the salt bridge. The cathode and anode are separated by using the double vertical line which actually represents the salt bridge. The species of different phases are notified by using a single vertical line in the cell notation.
The total mass obtained is 11.76g.
(d)
Interpretation:
The coulombs charge produced in sub-part (b) has to be calculated.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of chemical reaction, where both the oxidation and reduction occur at the same time. In a redox reaction, one of the reactant is oxidized and the other is reduced simultaneously.
Generally, the anode compartment with oxidation components are written on the left side of the salt bridge and the cathode compartment with reduction components are notified on the right of the salt bridge. The cathode and anode are separated by using the double vertical line which actually represents the salt bridge. The species of different phases are notified by using a single vertical line in the cell notation.
The total charge produced from given grams of zinc is 1.33×104 C.
(e)
Interpretation:
The reason behind heaviness of voltaic cells for given capacity than the calculation sub-part (c) has to be explained.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of chemical reaction, where both the oxidation and reduction occur at the same time. In a redox reaction, one of the reactant is oxidized and the other is reduced simultaneously.
Generally, the anode compartment with oxidation components are written on the left side of the salt bridge and the cathode compartment with reduction components are notified on the right of the salt bridge. The cathode and anode are separated by using the double vertical line which actually represents the salt bridge. The species of different phases are notified by using a single vertical line in the cell notation.
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Chapter 21 Solutions
Chemistry: The Molecular Nature of Matter and Change
- Classify each molecule as optically active or inactive. Determine the configuration at each H соон Chirality center OH 애 He OH H3C Ноос H H COOH A K B.arrow_forwardQ1: Rank the relative nucleophilicity of the following species in ethanol. CH3O¯, CH3OH, CH3COO, CH3COOH, CH3S Q2: Group these solvents into either protic solvents or aprotic solvents. Acetonitrile (CH3CN), H₂O, Acetic acid (CH3COOH), Acetone (CH3COCH3), CH3CH2OH, DMSO (CH3SOCH3), DMF (HCON(CH3)2), CH3OHarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
- 10. The main product of the following reaction is [1.1:4',1"-terphenyl]-2'-yl(1h-pyrazol-4- yl)methanone Ph N-H Pharrow_forwardDraw the Fischer projection for a D-aldo-pentose. (aldehyde pentose). How many total stereoisomers are there? Name the sugar you drew. Draw the Fischer projection for a L-keto-hexose. (ketone pentose). How many total stereoisomers are there? Draw the enantiomer.arrow_forwardDraw a structure using wedges and dashes for the following compound: H- Et OH HO- H H- Me OHarrow_forward
- Which of the following molecules are NOT typical carbohydrates? For the molecules that are carbohydrates, label them as an aldose or ketose. HO Он ОН ОН Он ОН но ΤΗ HO ОН HO eve Он он ОН ОН ОН If polyethylene has an average molecular weight of 25,000 g/mol, how many repeat units are present?arrow_forwardDraw the a-anomer cyclized pyranose Haworth projection of the below hexose. Circle the anomeric carbons. Number the carbons on the Fischer and Haworth projections. Assign R and S for each chiral center. HO CHO -H HO -H H- -OH H -OH CH₂OH Draw the ẞ-anomer cyclized furanose Haworth projection for the below hexose. Circle the anomeric carbons. Number the carbons on the Fischer and Haworth projections. HO CHO -H H -OH HO -H H -OH CH₂OHarrow_forwardName the below disaccharide. Circle any hemiacetals. Identify the numbering of glycosidic linkage, and identify it as a or ẞ. OH HO HO OH HO HO HO OHarrow_forward
- What are the monomers used to make the following polymers? F. а. b. с. d. Вецер хочому なarrow_forward1. Propose a reasonable mechanism for the following transformation. I'm looking for curved mechanistic arrows and appropriate formal charges on intermediates. OMe MeO OMe Me2N NMe2 OTBS OH xylenes OMe 'OTBSarrow_forwardWhat is the polymer made from the following monomers? What type of polymerization is used for each? а. ОН H2N но b. ن -NH2 d. H₂N NH2 довarrow_forward
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