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A standard galvanic cell is constructed with Co2+|Co and Fe2+|Fe half cell compartments connected by a salt bridge. Which of the following statements are correct?Choose all that apply.
The cathode compartment is the Co2+|Co compartment.The cathode compartment is the Fe2+|Fe compartment.In the external circuit, electrons flow from the Co2+|Co compartment to the Fe2+|Fe compartment.Fe2+ is reduced at the cathode.As the cell runs, anions will migrate from the Co2+|Co compartment to the Fe2+|Fe compartment.
What is the pH of the solution after 39.2 mL of NaOH have been added to the acid? Ka=1.3x10^-5
What are the advantages of laser. Can you explain why blue laser technology is the most challenging wavelength to develop in the photonics industry
What is the volume occupied by 0.265 mol of helium gas at a pressure of 1.32 atm and a temperature of 302 K.
For the following processes, calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic:
1.00 mol of phosphorus reacted with excess fluorine: P4 + 6F2 -> 4PF3 Calculate the number of moles of PF3 produced, assuming the reaction went to completion
Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.
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?
How many grams of H2O are produced when 10.0 g of Phenol, C6H6O, reacts with 20.0 g of O2 in the following reaction
Calculate the entropy change when argon at 25 °C and 1.00 bar in a container of volume 0.500 dm3 is allowed to expand to 1.000 dm3 and is simultaneously heated to 100 °C.
Some ice cubes at 0 degrees C with a total mass of 379g are placed in a microwave oven and subjected to 750. W (750. J/s)of energy for 5.00 minutes. (Assume all energy of the microwave is absorbed by the water and no heat loss by the water.)
A products, the general rate law is: rate = k[A]2. How long is the third half-life of the reaction if [A]0 is 0.080 M and the first half-life is 22 minutes?
Calculate the vapor pressure of each component, the total pressure, and the composition of the vapor phase when the mole fraction of Br2 is 0.050. Assume that the conditions of an ideal dilute solution are satisfied at this concentration.
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