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Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr , electrode immersed in a Cr (NO3)3 solution, and the other half-cell consists of the silver, Ag , electrode immersed in a AgNO3 solution. The two electrodes are connected by a copper wire. The Cr electrode acts as the anode, and the Ag electrode acts as the cathode. To maintain electric neutrality, you add a KNO3 salt bridge separating the two half-cells. Use this information to solve Parts B, C, and D. Part B The half-cell is a chamber in the voltaic cell where one half-cell is the site of the oxidation reaction and the other half-cell is the site of the reduction reaction. Type the half-cell reaction that takes place at the anode for the chromium-silver voltaic cell. Indicate the physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget to add electrons in your reaction. Express your answer as a chemical equation.
it takes 48.0 j to raise the temperature of an 10.7 g piece of unknown metal from 13.0 degree celsius to 25.0 degree
Calculate the work in kilojoules done during a synthesis of ammonia in which the volume contracts from 8.8L to 4.3L at a constant external pressure of 46 atm
What mass of carbon dioxide was produced? Express your answer to three significant figures and include the appropriate units.
Assuming levels of atmospheric CO2 are 390 ppm CO2, what is the pH of rainwater in equilibrium with the atmosphere for the estimated future atmospheric CO2 concentration of 780 ppm,v.
Provide a mechanism to account for the fact that acid-catalyzed dehydration of 2,2-dimethylcyclohexanol and of 2,3-dimethylcyclohexanol (mixed isomers) produces the same major product.
AIDS drugs such as Indavir and Amprenavir act by 1. inhibiting an enzyme that catalyzes the cleavage of a peptide bond between the gag and pol fragments in the gag-pol protein.2 2.catalyzing the cleavage of a peptide bond between the gag and pol ..
A 43.0 g sample of ethylene glycol, HOCH2CH2OH, is dissolved in 540.0 g of water. The vapor pressure of water at 32°C is 35.7 mm Hg. What is the vapor pressure of the water-ethylene glycol solution at 32°C ?
The standard reduction potential for Zn2+ is -0.76 volt and that of Cu2+ is 0.34 volt.a) Write the cell diagram for the Daniell cell (NH4NO3 salt bridge).
NaOH solution is needed to just neutralize excess acid after 20mL of 0.10 M HCl was added to 1 gof the antacid, how many moles of acid can the antacid counteract per gram?
Which of the following is the [OH-] in pure water at room at room temperature? A) 1.0 x 10^-14 M B) 1.0 x 10^-7 M C) 1.0 x 10^7 M D) 1.0 x 10^14 M
Write a net ionic equation to explain why the pH didn't go up to about 10, as it would have if that amount of NaOH were added to distilled water or to 20mL 0.00040 M HCl, which also would have a pH of 3.40
bone was dissolved in hcl giving 53.0 ml of solution that contains calcium chloride potassium oxalate was added to
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