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Define Galvanic Series.
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- Consider a galvanic cell consisting of the Cr3+/Cr (Eo=-0.74 V) and the Ag+/Ag (Eo=+0.8 V) systems in the half-cells. a) What is the standard cell potential, Eocell, for the galvanic cell in volts (V) and millivolts (mV)?A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG". • The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E". His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 2. calculated quantities (Check the box next to any that are wrong.) cll AG E" K 23 2.51 X 10 2 A 129. kJ/mol O 0.67 V B -42. kJ/mol 4.38 x 10 0.22 V - 147. kJ/mol O -26 1.76 x 10 0.76 VA student made measurements on some electrochemical cells and calculated three quantities: AG. • The equilibrium constant K at 25.0 °C. • The standard reaction free energy • The cell potential under standard conditions 圖 His results are listed below. dlo Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. calculated quantities (Check the box next to any that are wrong.) cell AG K E 8- A -41. kJ/mol 6.56 x 10 -0.42 V 15 8.76 x 10 1 -91. kJ/mol - 0.94 V 17 1.52 x 10 1 -96. kJ/mol - 1.00 V Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy | Accessibility MAY 8. MacBoo B.
- At 298 K. AG°=+20.9 kJ/mol for the reaction CH;CO,H (aq) = H (aq) + CH;CO, Calculate AG for this reaction if the [H"] = 1.39 x 10, [CH;CO, ]: 6.76 x 10, and [ CH;CO,H] = 4.77 x 10.A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG". • The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E". 圖 His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. do Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 2. calculated quantities (Check the box next to any that are wrong.) cell AG° E K A 2 268. kJ/mol O 46 8.95 x 10 -1.39 V -38 B -212. kJ/mol 7.23 x 10 1.10 V 27 2.14 x 10 2 -156. kJ/mol O -0.81 V Explanation Check Privacy Accessibility 02021 McGraw-Hill Education. All Rights Reserved. Terms of Use MacBook Air F12 ►► FI F10 F9 F7…The redox potentials for the Zn2+/Zn and Cl2/Cl– couples are -0.764 V and 1.395 V, respectively. What are the products of the spontaneous reaction with their relative stoichiometry?
- A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG". • The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E. His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 2. calculated quantities (Check the box next to any that are wrong.) cell AG K E A 181. kJ/mol 5.13 x 10 -0.94 V 162. kJ/mol 2.41 x 10 0.84 V 66. kJ/mol 3.65 x 10 0.34 V Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy Ac MAY 8. 2. 2. 2.A certain metal M forms a soluble sulfate salt M, SO,. Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 mM solution of M, SO, and the right half cell with a 4.00 M 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 30.0 °C. O left dh Which electrode will be positive? 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.4
- 1Inert metal electrodes, such as platinum and gold, generate an electrode potential that responds to the redox reaction occurring on the metal surfaces - this type of electrode is called a reference electrode. Is the above information true or false? Explain with reasons.Calculate the G in kJ for the following cell: Al(s)|Al3+(0.0035M)||Fe3+(0.55M)|Fe(s) Eocell=+1.59 V Al(s)|Al3+(0.0035M)||Fe3+(0.55M)|Fe(s) Group of answer choices -473 -374 -158 -734 -658 Calculate Ecell in volts. Cu(s)|Cu2+(3.00x10-4)||Ag+(0.15M)|Zn(s) Eocell=+0.620 V 0.700 0.544 0.944 0.644 0.800
