
(a)
Interpretation:
The standard cell potential for the given cell has to be calculated.
Concept Introduction:
An
Redox reaction: Redox reaction is a type of
The Standard Gibb’s free energy change and the standard cell potential are related as followed:
n - Number of electrons involved per equivalent of the net redox reaction in the cell
F - Faraday’s Constant (96500 C)
(a)

Explanation of Solution
The given information says that two voltaic cells are combined. The half reactions are depicted as follows,
Applying, the formula
(b)
Interpretation:
The total cell potential when two given cells are connected in series 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.
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.
The Standard Gibb’s free energy change and the standard cell potential are related as followed:
n - Number of electrons involved per equivalent of the net redox reaction in the cell
F - Faraday’s Constant (96500 C)
(b)

Explanation of Solution
The given information says that two voltaic cells are combined. The half reactions are depicted as follows,
Applying, the formula
When two cells are connected in series the total cell potential is obtained by adding the potentials of individual cells present.
(c)
Interpretation:
The cell that acts as voltaic cell and the one that act as electrolytic cell present in the given cell has to be identified when the given condition is applied.
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.
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.
The Standard Gibb’s free energy change and the standard cell potential are related as followed:
n - Number of electrons involved per equivalent of the net redox reaction in the cell
F - Faraday’s Constant (96500 C)
(c)

Explanation of Solution
The difference in voltages occurs when the given cells are connected in series that is connecting
(d)
Interpretation:
The metal ion that gets reduced in each cell has to be identified.
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.
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.
(d)

Explanation of Solution
The given information says that two voltaic cells are combined. The half reactions are depicted as follows,
Analyzing the reduction potentials of
Similarly, analyzing the reduction potentials of
(e)
Interpretation:
The amount of metal obtained from electrolytic cell when 2 grams of metal plates out from voltaic cell has to be identified.
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.
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.
(e)

Explanation of Solution
The difference in voltages occurs when the given cells are connected in series that is connecting
As per above connection,
Therefore, the mass of zinc produced is calculated as follows,
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Chapter 21 Solutions
Student Solutions Manual For Silberberg Chemistry: The Molecular Nature Of Matter And Change With Advanced Topics
- Provide photos of models of the following molecules. (Include a key for identification of the atoms) 1,2-dichloropropane 2,3,3-trimethylhexane 2-bromo-3-methybutanearrow_forwardPlease draw the structure in the box that is consistent with all the spectral data and alphabetically label all of the equivalent protons in the structure (Ha, Hb, Hc....) in order to assign all the proton NMR peaks. The integrations are computer generated and approximate the number of equivalent protons. Molecular formula: C13H1802 14 13 12 11 10 11 (ppm) Structure with assigned H peaks 2.08 3.13arrow_forwardA 0.10 M solution of acetic acid (CH3COOH, Ka = 1.8 x 10^-5) is titrated with a 0.0250 M solution of magnesium hydroxide (Mg(OH)2). If 10.0 mL of the acid solution is titrated with 10.0 mL of the base solution, what is the pH of the resulting solution?arrow_forward
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- Please draw the structure in the box that is consistent with all the spectral data and alphabetically label all of the equivalent protons in the structure (Ha, Hb, Hc....) in order to assign all the proton NMR peaks. The integrations are computer generated and approximate the number of equivalent protons. Molecular formula: C13H1802 14 13 12 11 10 11 (ppm) Structure with assigned H peaks 2.08 3.13arrow_forwardCHEMICAL KINETICS. One of the approximation methods for solving the rate equation is the steady-state approximation method. Explain what it consists of.arrow_forwardCHEMICAL KINETICS. One of the approximation methods for solving the rate equation is the limiting or determining step approximation method. Explain what it consists of.arrow_forward
- CHEMICAL KINETICS. Indicate the approximation methods for solving the rate equation.arrow_forwardTRANSMITTANCE เบบ Please identify the one structure below that is consistent with the 'H NMR and IR spectra shown and draw its complete structure in the box below with the protons alphabetically labeled as shown in the NMR spectrum and label the IR bands, including sp³C-H and sp2C-H stretch, indicated by the arrows. D 4000 OH LOH H₂C CH3 OH H₂C OCH3 CH3 OH 3000 2000 1500 HAVENUMBERI-11 1000 LOCH3 Draw your structure below and label its equivalent protons according to the peak labeling that is used in the NMR spectrum in order to assign the peaks. Integrals indicate number of equivalent protons. Splitting patterns are: s=singlet, d=doublet, m-multiplet 8 3Hb s m 1Hd s 3Hf m 2Hcd 2Had 1He 鄙视 m 7 7 6 5 4 3 22 500 T 1 0arrow_forwardRelative Transmittance 0.995 0.99 0.985 0.98 Please draw the structure that is consistent with all the spectral data below in the box and alphabetically label the equivalent protons in the structure (Ha, Hb, Hc ....) in order to assign all the proton NMR peaks. Label the absorption bands in the IR spectrum indicated by the arrows. INFRARED SPECTRUM 1 0.975 3000 2000 Wavenumber (cm-1) 1000 Structure with assigned H peaks 1 3 180 160 140 120 100 f1 (ppm) 80 60 40 20 0 C-13 NMR note that there are 4 peaks between 120-140ppm Integral values equal the number of equivalent protons 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 fl (ppm)arrow_forward
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