•The plot of cell voltage vs pH shows a negative slope. •Plots of cell voltage vs...
•The plot of cell voltage vs pH shows a negative slope.
•Plots of cell voltage vs either log([Cu2+]) or log([Ag+]) have positive slopes. Explain the difference.
Homework Answers
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•The plot of cell voltage vs pH shows a negative slope.
•Plots of cell voltage vs...
2) a) A plot of DG° vs. Temperature yields a slope of –80 J/K. Is the...
2) a) A plot of DG° vs. Temperature yields a slope of –80 J/K. Is the DS° of the reaction positive or negative? Why? And under what conditions? b) For the reaction: Cl2(g) --> 2Cl(g), predict the sign of DH and DS.
DC series MOTOR... LAB I need help answering question 6 and 7. Results and Discussion: 1. Plot machine speed vs resistance 2. Plot machine speed vs current 3. Explain the above plots 4. Using DC M...
DC series MOTOR...
LAB
I need help answering question 6 and 7.
Results and Discussion: 1. Plot machine speed vs resistance 2. Plot machine speed vs current 3. Explain the above plots 4. Using DC Motor Theory, explain the current profile Totque (mV) 12 you obtained Plot the motor speed against the input voltage. Explain the results obtained. Using the graph, right, determine the torque at each current setting. Plot the motor speed (n) against the torque (T) of the...
5. (15 points) Below shows a plot of voltage vs. time across a capacitor. The capacitor...
5. (15 points) Below shows a plot of voltage vs. time across a capacitor. The capacitor is in series with a resistor R-47002, and battery time (1 time constant a. What is the maximum voltage of the battery, E.? b. If the time constant is 1.5 ms, what is the voltage across the capacitor at Ber one time constant? c. What is the value of the capacitor?
(a) Sketch out, and explain the expected log D vs pH plot in the solvent extraction...
(a) Sketch out, and explain the expected log D vs pH plot in the solvent extraction of an organic amine RNH2 (pKa for RNH3 + = 9.5). [5 marks] (b) Iodine is found in organic forms in plants and animals, and in inorganic forms in natural water samples. Using suitable equations, explain the effect of added iodide on the distribution ratio for the solvent extraction of iodine from water samples. [5 marks]
1. If the cell voltage is 0.473 V what is the pH of the cathode compartment...
1. If the cell voltage is 0.473 V what is the pH of the cathode compartment for the following cell where E° (Zn2+Zn) = -0.7618 V? Zn(s)[Zn2+(aq, 1.00 M)|| H*(aq, ? M)|H2(g. 1 atm)Pt(s) Dobe r to bola piwostinavia 2. Gold can be plated out of a solution containing Au according to the half-reaction Au (aq) + 3 e- - Au(s) v o n 18 How long will it take to plate out 10.0 g Au(s) (Mau = 197.0 g/mol)...
For the 4 circuits below, plot the V vs V, relationships (as demonstrated in Chapter 3) first wit...
For the 4 circuits below, plot the V vs V, relationships (as demonstrated in Chapter 3) first without using EveryCircuit (EC) app Then build the circuits in EC, vary V, measure V, and plot V vs V. again based on the results obtained from EC app Assume V.-IV, R.-R. = 1kw and the diodes are ideal with Turn ON voltage of 0.7V (or OV meaning the diode is forward-biased and Di R and cathode terminal Circuit (a) ircuit (b) ircuit...
Post-Laboratory Report (Page 1/1) Group Number Date: Day Time 1. The salt bridge in Goal #1 was s...
Post-Laboratory Report (Page 1/1) Group Number Date: Day Time 1. The salt bridge in Goal #1 was soaked with a saturated ammonium nitrate solution. In which direction do the ammonium ions move when this salt bridge completed the electric circuit? Toward the zinc metal or toward the copper metal? In which direction do the nitrate ions move? 2. In a concentration cell, what would be the potential if we studied two solutions that had the same concentration? Show that the...
Partner's Name Instructor Procedure I, Voltaic Cell Zn/Zn2+ 1.0 M || Cu2+ 1.0 M/Cu In the...
Partner's Name Instructor Procedure I, Voltaic Cell Zn/Zn2+ 1.0 M || Cu2+ 1.0 M/Cu In the space below write the equations for the two half reactions and sum them appropriately to calculate the standard reaction potential for a 1.0 M voltaic cell. Show the overall net ionic equation for this reaction. 9pts.) Standard reaction potential Write the expression for Q for this redox reaction. (4 pes) In the space below show a calculation using the Nemst equation to determine the...
Some cell membranes in the human body have a layer of negative charge on the inside...
Some cell membranes in the human body have a layer of negative charge on the inside surface and a layer of positive charge of equal magnitude on the outside surface. Suppose that the charge density on either surface is ± 0.50×10−3 C/m2, the cell membrane is 5.00 nm thick, and the cell membrane is made up of tissue with a dielectric constant of 5.40. A) Find the magnitude of E in the membrane between the two layers of charge. E=?...
Can anyone make me explain 1 and 2. I am confused whether they are true or...
Can anyone make me explain 1 and 2. I am confused whether they
are true or false.
16. A plot of free energy vs. reaction progress is shown below for the reaction Ag) + B(8) C(g) Free energy 100% 100% A(g) & B(g) Reaction C(g) - progress How many of the statements (i-v) are true? i. The minimum energy corresponds to the mixture of reactants and products present at equilibrium. ii. At equilibrium, all of A and B have røacted...
DC series MOTOR...
LAB
I need help answering question 6 and 7.
Results and Discussion: 1. Plot machine speed vs resistance 2. Plot machine speed vs current 3. Explain the above plots 4. Using DC Motor Theory, explain the current profile Totque (mV) 12 you obtained Plot the motor speed against the input voltage. Explain the results obtained. Using the graph, right, determine the torque at each current setting. Plot the motor speed (n) against the torque (T) of the...
5. (15 points) Below shows a plot of voltage vs. time across a capacitor. The capacitor is in series with a resistor R-47002, and battery time (1 time constant a. What is the maximum voltage of the battery, E.? b. If the time constant is 1.5 ms, what is the voltage across the capacitor at Ber one time constant? c. What is the value of the capacitor?
1. If the cell voltage is 0.473 V what is the pH of the cathode compartment for the following cell where E° (Zn2+Zn) = -0.7618 V? Zn(s)[Zn2+(aq, 1.00 M)|| H*(aq, ? M)|H2(g. 1 atm)Pt(s) Dobe r to bola piwostinavia 2. Gold can be plated out of a solution containing Au according to the half-reaction Au (aq) + 3 e- - Au(s) v o n 18 How long will it take to plate out 10.0 g Au(s) (Mau = 197.0 g/mol)...
For the 4 circuits below, plot the V vs V, relationships (as demonstrated in Chapter 3) first without using EveryCircuit (EC) app Then build the circuits in EC, vary V, measure V, and plot V vs V. again based on the results obtained from EC app Assume V.-IV, R.-R. = 1kw and the diodes are ideal with Turn ON voltage of 0.7V (or OV meaning the diode is forward-biased and Di R and cathode terminal Circuit (a) ircuit (b) ircuit...
Post-Laboratory Report (Page 1/1) Group Number Date: Day Time 1. The salt bridge in Goal #1 was soaked with a saturated ammonium nitrate solution. In which direction do the ammonium ions move when this salt bridge completed the electric circuit? Toward the zinc metal or toward the copper metal? In which direction do the nitrate ions move? 2. In a concentration cell, what would be the potential if we studied two solutions that had the same concentration? Show that the...
Partner's Name Instructor Procedure I, Voltaic Cell Zn/Zn2+ 1.0 M || Cu2+ 1.0 M/Cu In the space below write the equations for the two half reactions and sum them appropriately to calculate the standard reaction potential for a 1.0 M voltaic cell. Show the overall net ionic equation for this reaction. 9pts.) Standard reaction potential Write the expression for Q for this redox reaction. (4 pes) In the space below show a calculation using the Nemst equation to determine the...
Can anyone make me explain 1 and 2. I am confused whether they
are true or false.
16. A plot of free energy vs. reaction progress is shown below for the reaction Ag) + B(8) C(g) Free energy 100% 100% A(g) & B(g) Reaction C(g) - progress How many of the statements (i-v) are true? i. The minimum energy corresponds to the mixture of reactants and products present at equilibrium. ii. At equilibrium, all of A and B have røacted...
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