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Assuming there is no overpotential, Predict the products formed at the anode and cathode during the electrolysis of ZnCl2 in water?
standard cell potentials:
Cl2 + 2e- ---> 2Cl- Ecell=+1.36VO2 +4H+ + 4e- ---> H20 Ecell=+0.82V2H20 +2e- ---> 20H- + H2 Ecell=-0.42VZn^2+ + 2e- --->Zn Ecell=-0.76V
Choices:a) Cl2 at the anode and Zn at the cathodeb) Cl2 at the anode and H2 at the cathodec) O2 at the anode and Zn at the cathoded)O2 at the anode and H2 at the cathode
If 1.00 mole of HI is put into an evacuated 1.00-liter container at 490 degrees C and allowed to reach equilibrium, how much H2 will be present at equilibrium in the reaction H2(g) + I2(g) 2HI, K=45.9 at 490 degrees C?
An aerosol can has an internal pressure of 3.85atm at 25 degrees celsius. What temperature is required to raise the pressure to 18.0atm
For the reaction A + B C, the rate constant at 215 degrees C is 5.0 X 10^-3 and the rate constant at 452 degrees C is 1.2 X 10^-1 a) What is the activation energy in kJ/mol?
If an aqueous solution containing Pb^2+ ions is electrolyzed using a current of 0.900 amps, calculate the mass of Pb(s) plated out after 50 minutes.
completely evacuated and then filled with an unknown gas to a pressure of 747 mmHg at 22 degree C. If the glass bulb gained 0.103 g in mass, what is the molar mass of the gas?
Why is concentrated sulfuric acid employed in the nitration of methyl benzoate reaction. What is the electrophile that is produced by the reaction of sulfuric acid and nitric acid
Using the same assumptions and approximations you used in lab, determine the molar enthalpy change (in kJ/mol) for the reaction below, assuming that CH3CO2H dissociates completely in water.
A 295mLflask contains pure helium at a pressure of 742torr . A second flask with a volume of 465mL contains pure argon at a pressure of 717torr .
The rate law for the reaction, 2NO(g) + O2(g) -- 2NO2(g), is found to be: rate of reaction=k[NO]2[O2]2 (PLEASE note that the 2's after the concentrations are powers, so we have NO to the power of 2 and O2 to the power of
Calculate the energy needed to raise the temperature of 180.0 g of water from 10.0 degrees Celsius to 40.0 degree Celsius. The molar heat capacity for water is 75.3 J/K mol.
Calculate the concentration of I- in a solution obtained by shaking 0.10 M KI with an excess of AgCl.
What is the value of Delta S when 2.7g of CH4 is compressed from 29.0 L to 18.0 L at a constant temperature of 100 C?
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