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What is the molarity of a Na2Cr2O7 solution if 22.5 mL of it is required to oxidize 33.0 mL of 0.150 M Fe(NH4)2(SO4)? The reaction products include Cr3+ and Fe3+.
An electron in the ground-state He+ ion undergoes a transition to a state described by the wavefunction R4,1(r)Y1,1(?,). (a) Describe the transition using term symbols. (b) Compute the wavelength, frequency, and wavenumber of the transition.
The boiling point of ethanol is 78°C. How much heat is required to heat 100 grams of ethanol from 25°C to its boiling point and then to turn it into a vapor
Cerium is often used as a reducing agent. Although it is expensive, it has a high stabile and constant value of E^ o over a PH range from 0 to 7.
A 4.50G sample of LiCl at 25.0 degree celcius dissolves in 25.0 mL of water also at 25.0 degree celcius. The final equilibrium temperature of the resulting solution is 60.8 degree celcius. What is the enthalpy of solution of LiCl expressed in kilo..
A solution is prepared by mixing 3.9 g of FeCl3 with enough water to make 125.0 mL of solution. Calculate the molarity of the solution.
Calculate the PH of the cathode compartment solution if the cell emf at 298K is measured to be 0.660V when (Zn^2+)=0.22 M and(P_H2)= 0.87atm
what is the percentage ionization of the benzoic acid in the resulting solution. Ka(benz acid)=6.5 * 10^-5
what is the internal energy change of a gas gives off 312 of heat while being compress 862mL by a pressure of 1.64 bar. what are internal energy change in surrounding and universe for the process
What is the empirical formula of a hydrocarbon if complete combustion or 6.000 mg of the hydrocarbon produced
An electron traveling at the velocity of 3.7 105 m/sec has an uncertainty in its velocity of 2.34 105 m/s. determine the uncertainty in its position?
Determine the calorimeter constant of the calorimeter in which the combustion of 0.600 g of sucrose raises the temp by 1.96 C
What is the pKa value of the proton alpha to the phenyl group, and what is the pka value of the proton attached to the carbonyl carbon?
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