2. In another experiment, Fischl used chromium metal to form an electrode she can use for her voltaic cell. She wanted to determine theelectric potential produced by the chromium electrode (and 1.0 M of its corresponding electrolyte solution) with a Copper electrode in0.10 M CuSO4 solution at 25 °C. Predict the following:a. OHR of the voltaic cell:b. RHR of the voltaic cell:c. Number of electrons involved in the redox reaction (n):d. Overall reaction for the voltaic cell:e. Standard cell potential, E°cell:2Cr(s) + 3Cu^2+(aq) → 2Cr^3+(aq) + 3Cu(s)3Cr(s) + 2Cu^2+(aq) → 3Cr^3+(aq) + 2Cu(s)3Cr^3+(aq) + 2Cu(s) → 3Cr(s) + 2Cu^2+(aq)2Cr^3+(aq) + 3Cu(s) → 2Cr(s) + 3Cu^2+(aq)f. Theoretical Ecell :g. If the measured Ecell Was 0.75 V, calculate the percent error.%h. Oz suggested that they increase the concentration of CuSO4 solution used. What will be the effect on the measured potential?

2. In another experiment, Fischl used chromium metal to form an electrode she can use for her voltaic cell. She wanted to determine the electric potential produced by the chromium electrode (and 1.0 M of its corresponding electrolyte solution) with a Copper electrode in 0.10 M CuSO4 solution at 25 °C. Predict the following: a. OHR of the voltaic cell: b. RHR of the voltaic cell: c. Number of electrons involved in the redox reaction (n): eltais sellı

2. In another experiment, Fischl used chromium metal to form an electrode she can use for her voltaic cell. She wanted to determine the electric potential produced by the chromium electrode (and 1.0 M of its corresponding electrolyte solution) with a Copper electrode in 0.10 M CuSO4 solution at 25 °C. Predict the following: a. OHR of the voltaic cell: b. RHR of the voltaic cell: c. Number of electrons involved in the redox reaction (n): eltais sellı

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A certain metal M forms soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell apparatus is filled with a 3.50 M solution of MSO4 and the right half cell with a 3.50 mM solution of the same substance. Electrodes made of M are dipped into both solutions and voltmeter is connected between them. The temperature of the apparatus is held constant at 40.0 °C. Which electrode will be positive? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. 0 left right 0×100 X ?
Consider an electrochemical cell operating under standard conditions and at 25 °C. One half cell is the standard hydrogen electrode and the other contains dichromate ions and chromium(III) ions in an acidified solution. When the cell operates, the value of A G is O a. 770 x 105 J O b.257 x 105 J O C. 3.85 x 105J Od. 770 x 105J O e..257 x 105 J Of. 3.85 x 105 J O g. None of the above.
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A certaln metal M forms a soluble nitrate salt M(NO,). Suppose the left half cell of a galvanic cell apparatus is filled with a 3.00 M solution of M(NO,). and the right half cell with a 3.00 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 25.0 °C. O left do Which electrode will be positive? x10 O right Ar What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. Explanation Check 2021 McGraw-Hill Education. Ali Rights Reserved. Terms of Use | Privacy Accessibility O 3:08 hp esc ! #3 & backs 1 2 3 5 6. 7 8. 9. %24
If the following cell generate a voltage, which of the following will generate a cell voltage that is different from the standard voltage (E0) for the cell? Hint: Reaction conditions are given a. a cell temperature that is greater or lower than 298 K b. aqueous cell components that are at a concentration greater than or lower than 1 M c. gaseous cell components that are at a pressure lower than 1 bar d. gaseous cell components that are at a pressure greater than 1 bar e. all of these choices
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4. An aqueous solution of KBr is electrolyzed a. Write the half-reaction that occurs at the anode. b. Write the half-reaction that occurs at the cathode. c. Write the balanced overall net ionic equation for the reaction. d. If a current of 10.0 A is applied to the cell for 45 minutes, what total volume of gas is produced at STP? (Hint: Br2 is a liquid)
A certaln metal M forms a soluble sulfate salt MSO,. Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 M solution of MSO, and the 4 right half cell with a 200. mM solution of the same substance. Electrodes made of M are dipped Into both solutions and a voltmeter Is connected between them. The temperature of the apparatus is held constant at 35.0 °C. left Which electrode will be positive? x10 O right What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. Explanation Check 2021 McGraw-Hill Education, All Rights Reserved. Terms of Use Privacy Accessibili Ce esc & $4 % #3 6 3. 4. 1 00 Σ <1
37125200 2001 Type your numeric answer and submit ELYSTES ESTE ISTS SUBS 23033 with all other cell components in place. ASTER PARENGER FAR SERBE 25029031 Hint Figure 18.9 in Section 18.3 illustrates the components of a voltaic cell. PROTERE GEXEMXXXI TOBAS K VEDEREESGESPE030 ESEC Determine the standard cell potential for a voltaic cell made of a Ag strip and an Al strip immersed in 1.0 M aqueous AgNO3 EPHESISSEME and Al(NO3)3 solutions, respectively, DRESEN Revas CHORENIERS POSSEDERDES MOTERIMOSTERONE 273 SOEXPO ETLENS DE ARBAT SERENE BE DIS mom 0 Cannot be empty X 333 EXTERINE SINGIZININISIE BEEB