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with a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
a) write the standard half cell reduction reaction equation for each solution?
b) what are the standard half cell potentials; E anode and E cathode?
c) If the electrochemical cell is allowed to operate as a gavanic cell, which solution species will be oxidized, which solution species will reduce?
d) write the sybolic representation for the galvanic cell.
e) what would "standard conditions" for this galvanic cell be?
f) If the cell is at standard conditions, determine the cell potential(E cell).
Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [N2]eq = 3.6 M, [O2]eq = 4.1 M, [N2O]eq = 3.3 × 10-18 M.
Assume the caffeine solution is 15 mg of caffeine per mL. A student used 5 mL of caffeine solution in both part A and part B. Crude yields was 68 mg from the dichloromethane extract and 47mg from the MTBE extract.
For the spectrum labeled as DBABA come up with a valid structure for a molecule likely leading to the given spectrum. The molecular formula is C15H23NO. Is a benzene ring present?
Using formal charges, draw the resonance form from among all the Lewis structures that is most important in describing BeCl2.
Describe the hybrid orbitals used by the central atom in O 3 .and also determines what is the number of sigma and pi bonds present in O 3 .
If a current of 2.00 ampere is passed for 48 hours, what mass of aluminum id deposited at the electrode? Assume 100% current efficiency.
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
Why do you wash the ether layer with sodium carbonate? 4. Why is this experiment more expensive than the Fisher esterfication process? When is this method perferred?
A gas at 89.0°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L
A large number of polycyclic benzenoid aromatic hydrocarbons are known. One of these, benz/a/pyrene, is a powerful carcinogen found in tobacco smoke.
how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?
Calculate the number of grams of propane (C3H8) required to heat all of the water in a 50-gallon hot-water tank from 23.4 degrees C to 65.0 degrees C
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