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The temperature dependence of the reaction rate constant is given by the equation: k = Ae^-Ea/RT. Find Ln k
A 100 mm diameter silicon wafer is oxidized completely. What is the thickness of the resulting SiO2 wafer? The molecular weight of Si is 28 g/mol and of SiO2 is 60 g/mol.
using this equation N2(g)+3H2(g)-->2NH3(g) if 10500 L H2 gas is reacted with an excess of N2 gas at 200 atm and 500 degrees how many moles of ammonia gas would be produced, assuming a 15% yield
Calculate the concentration of Cu^2+ in a solution prepared by adding 4.5*10^-3 mol of CuSO4 to 0.490 L of 0.37 M NH3.
Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.)
if the freezing point of a 0.106m CH3COOH solution is -0.323 degrees celcius, what is the percent of acid that has undergone ionization?
What is the molarity of an aqueous solution containing 75.3 g of glucose (C6H12O6, mol wt = 180 g/mole) in 35.5 mL of solution
The rate constant for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction.
what is the ph solution obtained by mixing 25.00 ml of 0.250 ml HCl and 25.00ml of 0.125M NaOH
What are the spectator ions in the solution after completely precipitating an insoluble carbonate compound when mixing BaCl2(aq)
When 0.450kJ of heat is added to the gas, it expands and does 219J of work on the surroundings. What is the value of \Delta H for this process? Answer in units of kJ
Calculate the mass of the reaction mixture in the calorimeter. (To do this, assume that the density of the HCl solution originally in the calorimeter can be approximated with the density of water (1.0 g/mL).
find the number of moles of water that can be formed if you have 218 moles of hydrogen gas and 104 moles of oxygen gas
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