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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).
the ratio of the number of nuclei in the first excited nuclear energy level to the number of of nuclei for a nucleus with ε1 - ε0 = 1MeV at 25C. At what temperature is kBT on the order of ε1 - ε0. Note 1MeV = 10^6eV
what is the equation for ninhydrin test of egg white?
What is the temperature of 0.600 mol of gas at a pressure of 1.5 atm and a volume of 12.1 L
some people said that the precipitate disappeared and the solution went back to a bright orange/yellow clear colour, what is the chemical equation that describes both these reactions,
The reaction A=B+ C is second order in A. when [A}0=0.100M, the reaction is 20% complete in 35 minutes. Calculate the value of the rate constant in ( L/min.mol)
calculate the molarity of acid (or base) remaining in solution when 20mL of 0.400M HNO3 is added to 16.3mL of 0.258M NaOH?
Calculate the amount of water in liters that would have to be vaporized at 40 C (approximately body temperature) to expend the 2.5 x 10^6 calories of heat generated by a person in one day (commonly called sweating).
Propose a structure for the compound with the following formula that is consistent with the IR and 1H NMR data shown:
If a heated metal block is placed into a beaker of water, what is the relationship between the final temperatures of the water and the metal block?
A gas confined in a 519.1-mL container exerts a pressure of 107 mm Hg at 38.6 degrees Celsius. At what Celsius temperature will it exert a pressure of 635.7 mm Hg if it is placed into a 644 mL container?
A 100 mL buffer solution initially has 1.00 M HClO (Ka = 3.0 × 10-8) and 0.75 M NaClO. What is the new pH when this 100 mL of 0.10 M NaOH is added to the initial buffer solution?
A metallic solid with atoms in a face-centered cubic unit cell with an edge length of 385 pm has a density of 6.84 g/cm3. Calculate the atomic radius of the metal.
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