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a. What is the role of the Mg in preventing corrosion?
b. What qualities must a metal like Mg have to prevent oxidation of another metal?
c. Calculate the K for corrosion with Fe present. Assume standard conditions.
d. Calculate the K for corrosion with Mg present. Assume standard conditions. We have to calculate the cell potential first.
When using dichloromethane as a solvent, which would make a good, yet cost effective, drying agent?
A jar test has shown the optimum dose of ferric chloride consumes all of the alkalinity. If the amount of ferric chloride that is in excess is 10 mg/L, how much lime (Ca(OH)_2_), in mg/L must be added to neutralize the acid formed
A steam turbine operates adiabatically and produces 4000 hp. steam enters at 300 psia and 900 F. the exhaust stream is saturated at 5 psia. what is the mass flow rate of steam in lb/min? what is the turbine efficiency (compared to isentropic opera..
The speed of sound in air is 344 m/s at room temperature. The lowest frequency of a large organ pipe is 30 s^-1 and the highest frequency of a piccolo is 1.5*10^4 s^-1
From the electronic configuration, forecast which of the first 10 elements would be most similar in chemical behavior to the as yet undiscovered element 217.
A 64gram piece of ice at 0 celsius is added to a sample of water at 9 celsius. All of the ice melts and the temperature of the water decreases to 0 celsius. how many grams of water were in the sample?
SbCl3(s)+H2O(l) -> SbOCl(s)+2HCl(g) In this reaction what is the percentage of Cl in SbOCl and in 2HCl
Calculate the enthalpy of vaporization of Br2. This element has vapor pressures of 271 mm Hg and 565 mm Hg at 30.0 °C and 50.0 °C, respectively.
Calculate ?G for the reaction A+A--> P+ Q at 37 degrees C when the equilibrium concentrations are [A]=1 µM [Q]=2 mM, [P]=4 mM. Is the reaction exergonic or endergonic under standard conditions
the water solubility of L-alanine is 127g/L at 25 degrees celsius, what is the water solubility of D-alanine at 25 degrees celsius?
he maximum contaminant level (MCL) for barium (Ba) in drinking water is 2.0 mg/L. Barium can combine with sulfate (SO42-) to form BaSO4(s), which precipitates out of the water. This can be achieved by adding Na2SO4
Two thermometers are constructed in the same way except that one has a spherical bulb and the other has a cylindrical bulb. whic one will respond quickly to temperature changes?
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