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For the cell reaction: Cu(s) + 2Fe3+ ? 2Fe2+ + Cu2+ Ecell° = 0.33 V What is the value of the equilibrium constant at 25°C for the cell reaction?
The second car is of European manufacture, costs$21,700, and has a rated mileage of 19km/L. If the cost of gasoline is $1.25/gal and if the cars actually deliver their rated mileage, estimate how many miles you would have to drive for the lowest f..
What masses of sodium chloride,magnesium chloride, sodium sulfate,calcium sulfate, calcium chloride, potassium chloride, and sodium bicarbonate are needed to produce 1 L of arificial seawater
How much Tris (molecular mass 121.14 g/mol) is required to react with 35 mL of 0.10 M HCl
When she introduced 3.63E-2 moles of N2(g) and 6.18E-2 moles of H2(g) into a 1.00 Liter container, she found the equilibrium concentration of NH3(g) to be 9.68E-4 M.
Three 5.00mL samples of this solution are titrated with DCP that had a standardized concentration of 9.94x10-4M. The three titrations took an average of 27.51mL of DCP. (MM Ascorbic Acid = 176.124 g/mol) Calculate the mass (in mg) in the vitamin C ..
how many rotational levels are there, approximately, between v=0 and v=1 vibrational levels, which are 559.71 cm-1 apart in energy? B=0.2441 cm-1.
Iridium-192 is often used in the head or breast. Answer the following three questions (a, b, and c) based on the radioactive decay curve of iridium-192, shown below. Click on the graph and move the mouse over a point to get values for that point.
Calculate q, and determine whether heat is absorbed or released when a system does work on the surroundings equal to 64 J and ?U = ?213 J.
Combustion of 2.80 g of this compound produced 5.59 g of CO2 and 2.29 g of H2O. What is the empirical formula of the unknown compound?
Simplest and most informative way to characterize a carboxylic acid is to determine its neutralization equivalent. The number of carboxyl group in the molecule of the following compound is 1.
If you fill the larger tank with oxygen to a pressure of 135 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
an automobile achieves a gas mileage of 34.0 mi/gal. how many kilometers can it travel on 1.5 L of gasoline.
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