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A current of 0.600 A is passed through a cell for 5min and 30 s. How much charge (in C) was trasferred? How many electrons were transfered
If a 20.0 °C drop in temperature causes a fortyfold decrease in reaction rate for a certain reaction, what is the activation energy of the reaction
A catalyst lowers the activation energy of a reaction from 215 kJ to 206 kJ. By what factor would you expect the reaction-rate constant to increase at 25*C? Assume that the frequency factors
Calculate the number of molecules in 37.0 mL of ethanol, CH3CH2OH. The density of ethanol is 0.789 g/mL.
The reactant concentration in a zero-order reaction was 9.00×10^-2 M after 100s and 2.50×10^-2 M after 390s . What is the rate constant for this reaction
Calculate the percent by mass of calcium carbonate in the rock, assuming that it is the only substance reacting with the HCl solution.
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.695-g sample of Mg metal is added to 125.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. What mass of H2 is formed
What is the probability of populating the first excited vibrational state (n = 1) at 298 K? Does isotopic substitution affect the probability? Would the intensity of absorption peaks be affected by isotopic substitution?
Estimate the minimum boiling point difference betwen two compounds that would allow effective seprartion of the two compounds by simple distillation.
a)the air from a large building at 68C. b) the air froma small house at 68C. c)the air from a small room temperature at 71C
What would those concentrations be if you added HCl or NaOH to bring the pH to 3.2 or 7.35, respectively
Calculate the molarity of 52.56 grams of Al2(SO4)3 in 1.80 L of solution.
Compare the reactors when 1 reactor is a BSTR with V=10m^3 and the other is a CSTR with V=10m^3 &Q=10m^3/s. Assume Ca(t=0)=Ca0=10mol/m^3. a) Solve for Ca(t) and Xa(t) for the BSTR and the CSTR.
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