Homework Answers
3) Ecell = E°cell - 0.059/n log([product /[reactant])
As the reaction proceed, concentration of products increases and that of reactant decreases thus value of log increases. Hence, Ecell become less and less. But it can't turn negative because reaction has to be spontaneous which is only possible when Ecell is positive.
Add Answer to:
3. Explain why the cell potential for an operating galvanic cell decreases over time but does...
For a galvanic cell where the standard free energy change is negative and the cell potential...
For a galvanic cell where the standard free energy change is negative and the cell potential is positive, the reaction in the cell must be: Select the correct answer below: O always spontaneous O never spontaneous O spontaneous at certain temperatures O impossible to predict
A galvanic cell with a large equilibrium constant has a ___________ cell potential. A. Positive B....
A galvanic cell with a large equilibrium constant has a ___________ cell potential. A. Positive B. Variable C. Negative D. Zero Voltage E. Constant
Please explain what you do and why. A galvanic cell is setup with the following two...
Please explain what you do and why.
A galvanic cell is setup with the following two half-cells: A 250.0 mL solution of 0.15 M aluminum nitrate with a platinum electrode. A 250.0 mL solution of 0.85 M cobalt(II) nitrate with a cobalt electrode. a) Determine the cell potential that will be initially measured for this galvanic cell b) How much mass is gained/lost by the cobalt electrode after the cell reaches equilibrium? c) If it takes this galvanic cell 2.00...
B1. Construction of Galvanic Cells a. For each galvanic cells you construct, calculate the theoretical cell...
B1. Construction of Galvanic Cells a. For each galvanic cells you construct, calculate the theoretical cell potential using the table of the Standard Electrode Potentials from the Chemistry 0130 data booklet. (3 marks) Measured Galvanic Cells Cathode reaction Anode reaction Voltage (V) Cu?*/Cu and Zn/Zn? 0.937 v Zn/Zn2+ and Ag /Ag 1.329v Ag"/Ag and Cu/Cu2+ 0.394v Electrochemistry 9 b. For each galvanic cells, write the overall cell reaction (balanced net ionic equation). • identify the oxidizing agent (OA) and reducing...
A battery is an example of a galvanic cell. Use the Nernst equation to explain why a battery dies.
A battery is an example of a galvanic cell. Use the Nernst equation to explain why a battery dies.
The standard potential for the following galvanic cell is +0.90 V: 3 Cu2+(aq) + + 2...
The standard potential for the following galvanic cell is +0.90 V: 3 Cu2+(aq) + + 2 Ga(s) = 3 Cu(s) + 2 Ga3+(aq) Given that the standard reduction potential for the Cu2+/Cu half-coll is +0.34 V, what is the standard reduction potential for the GoP+/Ga half-cell? +1.36 V +0.56 V -0.56 V -1.34 V
Calculate the theoretical cell potential (E°) of a galvanic cell under standard conditions made up of...
Calculate the theoretical cell potential (E°) of a galvanic cell
under standard conditions made up of copper and magnesium (see Part
II and Table 1 for more information).
PARTIL Creating and Testing Voltaic Cells Introduction and Background for the Voltaic Cells A galvanic cell (sometimes more appropriately called a voltaic cell) consists of two half-cells joined by a salt bridge that allow ions to pass between the two sides in order to maintain electroneutrality. Each half-cell contains the Components of...
A galvanic cell generates an electrochemical potential of 2.418 Volts, using 3 equivalents of electrons. The...
A galvanic cell generates an electrochemical potential of 2.418 Volts, using 3 equivalents of electrons. The Gibb’s free energy is: (a) 233.3 KJ/mole (b) -128.9 KJ/mole (c) -699.8 KJ/mole (d) 128.9 KJ/mole
3. Explain why, in a chemical reaction, the concentration of a reactant decreases more rapidly at...
3. Explain why, in a chemical reaction, the concentration of a reactant decreases more rapidly at a lower time t than at a higher t.
A galvanic cell generates an electrochemical potential of 2.418 Volts, using 3 equivalents of electrons. The Gibb’s...
A galvanic cell generates an electrochemical potential of 2.418 Volts, using 3 equivalents of electrons. The Gibb’s free energy is: (a) 233.3 KJ/mole (b) -128.9 KJ/mole (c) -699.8 KJ/mole (d) 128.9 KJ/mole
For a galvanic cell where the standard free energy change is negative and the cell potential is positive, the reaction in the cell must be: Select the correct answer below: O always spontaneous O never spontaneous O spontaneous at certain temperatures O impossible to predict
Please explain what you do and why.
A galvanic cell is setup with the following two half-cells: A 250.0 mL solution of 0.15 M aluminum nitrate with a platinum electrode. A 250.0 mL solution of 0.85 M cobalt(II) nitrate with a cobalt electrode. a) Determine the cell potential that will be initially measured for this galvanic cell b) How much mass is gained/lost by the cobalt electrode after the cell reaches equilibrium? c) If it takes this galvanic cell 2.00...
B1. Construction of Galvanic Cells a. For each galvanic cells you construct, calculate the theoretical cell potential using the table of the Standard Electrode Potentials from the Chemistry 0130 data booklet. (3 marks) Measured Galvanic Cells Cathode reaction Anode reaction Voltage (V) Cu?*/Cu and Zn/Zn? 0.937 v Zn/Zn2+ and Ag /Ag 1.329v Ag"/Ag and Cu/Cu2+ 0.394v Electrochemistry 9 b. For each galvanic cells, write the overall cell reaction (balanced net ionic equation). • identify the oxidizing agent (OA) and reducing...
The standard potential for the following galvanic cell is +0.90 V: 3 Cu2+(aq) + + 2 Ga(s) = 3 Cu(s) + 2 Ga3+(aq) Given that the standard reduction potential for the Cu2+/Cu half-coll is +0.34 V, what is the standard reduction potential for the GoP+/Ga half-cell? +1.36 V +0.56 V -0.56 V -1.34 V
Calculate the theoretical cell potential (E°) of a galvanic cell
under standard conditions made up of copper and magnesium (see Part
II and Table 1 for more information).
PARTIL Creating and Testing Voltaic Cells Introduction and Background for the Voltaic Cells A galvanic cell (sometimes more appropriately called a voltaic cell) consists of two half-cells joined by a salt bridge that allow ions to pass between the two sides in order to maintain electroneutrality. Each half-cell contains the Components of...
3. Explain why, in a chemical reaction, the concentration of a reactant decreases more rapidly at a lower time t than at a higher t.
Most questions answered within 3 hours.
-
The moment of inertia of a disk rotating about its axis of
symmetry is Icm=1/2MR^2
The...
asked 1 minute from now -
When using a relational database what makes data
formatting so important and critical to the functions...
asked 8 minutes ago -
The following temperatures show the (fictional) daily low
measured at O'Hare airport every January 1st from...
asked 28 minutes ago -
Your friend is interested in the characteristics of fast tree
planters. He searched through the records...
asked 36 minutes ago -
. 0.67 g of Ag is deposited electrolytically from
AgNO3 after a certain period of time...
asked 37 minutes ago -
assuming that the boric acid, h3po3 present at the end of the
borax tritation has a...
asked 36 minutes ago -
When a carbonate solution is acidified, carbon dioxide is
produced.
2H+(aq) + CO32-(aq) → H2O(l) +...
asked 1 hour ago -
A reaction has the following rate law: Rate =
kr[A][B]2. In experiment 1, the
concentrations of...
asked 1 hour ago -
king owns a large number of public pay phones. as rhe use of
payphones decline deamatically,...
asked 1 hour ago -
3.7 - A book is sitting on a table. The mass of the book
is 1...
asked 1 hour ago -
Which term describes the process by which a single strand of DNA
serves as a template...
asked 1 hour ago -
LAB FOOD DRING
ANSWER THE QUESTIONS:
Q1. What value is the moisture content versus time and...
asked 1 hour ago