a quantity of electric charge brings about the deposition of 3.28g of Cu at a cathode during the electrolysis of solution containing Cu2+ (aq). What volume of H2 (g), measured at 28.2 C and 763 mmHg, would be produced by this same quantity of electric charge in the reduction of H+ (aq) at a cathode? without using pv=nrt
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a quantity of electric charge brings about the deposition of 3.28g of Cu at a cathode...
*A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [Cu(NH3)4]2+. If a standard hydrogen electrode is used as the cathode, the cell potential, Ecell, is found to be 0.070 V at 298 K. A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [NH. If a standard hydrogen electrode is used as the cathode, the cell potential,...
Test Yourself Section. Controlled-Potential Electrolysis What cathode potential is required to reduce 99.99% of 0.10 M Cu to Cu(s)? Is it pos- sible to remove this Cu without reducing 0.10 M Sn in the same solution? Cu2 +2e Cu(s) EXAMPLE 2+ (17-7) E = 0.339 V (17-8) E= -0.141 V Sn2 2et Sn(s) Solution If 99.99% of Cu were reduced, the concentration of remaining Cu 1.0 X 10 5 M, and the required cathode potential would be would be 0.059...
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis of CaBrz (), for example, produces Ca(s) at the cathode (from the reduction of Ca2+) and Br2(1) at the anode (from the oxidation of Br"). If more than one cation is present, only the one with highest reduction potential will be reduced. Similarly, if more than one anion is present, only the one with the highest...
Need help filling in my data sheet from a lab. My professor said the pressure was 24.6 inches of Hg and that we needed to convert that to moles. Im not sure i put that in the correct spot. I included the lab protocol. Plz plz plz help me fill in the blanks and let me know if i did something wrong Im very confused haha. THANKS!! Equivalent Mass by Electrolysis If the two terminals on any source of DC...
need help with questions EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
*redox reactions in electeochemical cells* c) Fe/0.1 M FeSO4//0.1 M CuSO4/Cu I soaked a porous cup in tap water for a few minutes and then i let it stand in a 100 ml beaker containing 10ml of 0.1 M FeSO4. I added enough 0.1M CuSO4 to the cup until the two liquid levels were the same height. I inserted a zinc strip into the 0.1 M FeSO4 and a shiny copper strip into the 0.1 M CuSO4. I connected the...
need help with the rest of the table EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE To determine the standard cell potential values of several electrochemical coll INTRODUCTION The basis for an electrochemical cell is an oxidation reduction Corredor be divided into two half reactions reaction. This reaction can Oxidation half reaction Gloss of electrons) takes place at the anode, which is the positive electrode that the anions migrate to Chence the name anode) Reduction half reaction (gain of electrons)...
please help answer question 4, a-f please using the data below from chart 1 objectives from lab, thank you DATA:CA y 3 Ay No3 Part I: Cell Potential of voltaic cells under standard conditions: cell CU CND2 #27 14.0m Give the half Half cell reaction at Combinations Oxidation Reduction E the anode and with [ion] takes place Theoretical takes place cathode. Write in M here here (V) above the arrow E c (V) if it is oxidation or reduction. |-0.340...
Prelab Activity: Electrochemical Cells To determine the solubility product of copper(II) carbonate, CuCO3 , a concentration cell as described on pages 71-72 of the lab handout is constructed. The temperature of the Galvanic cell is measured to be 22.5°C, and the cell potential 282 mV (0.282 V). Using this data and Equation 8 in the lab manual, calculate the Ksp for CuCO3 and report your answer with three significant digits. For the Galvanic cell you will construct in PART B,...
Chem 1212 Lab Report on electrochemistry Electrochemistry When electrons transfer between reaction components in a redox reaction, we can harness the motion of the electrons to create a potential. Electrochemistry revolves around the separation of the two half-reactions in a redox reaction and establishing two different electrodes. This might involve physically separating the half-reactions or including a separator, such as a semi-permeable membrane or plastic dividers. With the reactions separated, the electrons will need to flow through the wire connecting...