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An electrochemical cell is constructed in which both electrodes are made of platinum, but in which one electrode is in contact with an aqueous solution containing [Fe2+]=0.0765M and [Fe3+]=0.176M while the other electrode is in contact with an aqueous solution containing [Ce4+]=0.0376M and [Ce3+]=0.0987M. The two half-cells are connected with a salt bridge of saturated KNO3.What is the potential of this cell at 35.0°C? What is K value for net cell reaction at 35.0°C?
A piece of iron weighing 85.690 g was burned in air. the mass of the iron oxide produced was 118.350 g. What are the moles of iron in the original sample
Calculate the partial pressure of each gas -black, gray and white- if the total pressure inside the following container is 720 mmHg
Describe an electrochemical cell for which the following are the cell reactions. (A cell description includes the physical description of the anode and anode compartment with dissolved species,
Would the mass of the precipate collected be more, unchanged, or less if the residue was washed with hot distilled, deionized water instead
In a reaction mixture at equilibrium, the partial pressure of NO is 119 torr and that of Br2 is 175 torr. What is the partial pressure of NOBr in this mixture? Kp=28.4 at 298 K.
calculate the ksp of lead iodide from the following standard electrode potentials at 25 c oxidative -.126 redox
working solution so you add five spatula tips full of salt to a large test tube and then make your working solution with only 5mL of deionized water.
What is the limiting reactant when equal masses of iron(III) chloride and potassium phosphate react in solution?
What happens to the body that allows it to compensate (over this period of time) for the reduced pressure , so that the athletes will not become lightheaded?
State the selection rule for infrared-active molecules. Also, give an example of a molecule that is IR-active and identify an IR-active bond in the molecule, as well as where one would find its transition what frequency
Outline a complete mechanistic sequence for the reaction of 2-bromobutane with potasium2-methyl-2-propoxide in 2-methyl-2-propanol solvent to form thethree alkenes generated in the reaction
Calculate the increase in entropy when 3.50 mol of monatomic perfect gas with Cp = 5/2 R is heated from 250 K to 700 K and simultaneously expand from 20.0 L to 60.0 L.
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