Reduction through constant current electrolysis a) How much Cr3+ was reduced to Cr2+? b) A few seconds after the electrolysis was stopped, the potential of the cell came to rest at -0.524 volts. How much Cr3+ actually remains in the solution? c) What was the original Cr3+ concentration?
In the following reaction, identify the oxidizing and reducing agents. Cd + NiO2 + 2H2O to Cd(OH)2 + Ni(OH)2 a) Cd+2 is the reducing agent, NiO2 is the oxidizing agent. b) Cd is the reducing agent, H2O is the oxidizing agent. c) Cd is the reducing agent, NiO2 is the oxidizing agent. d) Cd is the reducing agent,
In the following reaction, identify the oxidizing and reducing agents. Zn + CuBr2 --> ZnBr2 + Cu a. Zn is the reducing agent, Cu+2 is the oxidizing agent b. Zn+2 is the reducing agent, CuBr2 is the oxidizing agent c. Zn is the oxidizing agent, Cu+2 is the reducing agent d. Zn is the reducing agent, Cu
6. In the following reaction, identify the oxidizing and reducing agents. 3Ca + VO3 --> 3CaO + V a. Ca+2 is the reducing agent, VO3 is the oxidizing agent b. Ca is the oxidizing agent, VO3 is the reducing agent c. Ca is the reducing agent, V is the oxidizing agent d. Ca is the reducing agent, O-2 is
Assuming that gasoline is 100% isooctane,that isooctane burns to produce only CO2 and H2O,and that the density of isooctane is 0.6955 g/mL,what mass of CO2(in Kg)is produced each year by the annual U.S. gasoline consumption of 460,000,000,000L.
How many coulombs of charge are required to oxidize 1.0g of copper to copper(II) ions?
What is the oxidation half reaction for: 2H2O-->O2(g)+2H2(g)
What is the oxidation number of iron in Fe(CN6)-4?
A first order reaction has a half-life of 1.34 x 10^-3 hours. If the initial concentration of the reactant is 8.00M, what is its concentration after 4 half-lives? a. 4.00M b. 2.00M c. 1.00M d. 0.50M e. 0.25M
A first order reaction has a half-life of 157 seconds. How much time is required for the reactant to be reduced to 12.5% of its initial concentration?
It is given that the electrochemical cell is at 298K. At time zero [Zn 2+ ]= 1.0 x 10 ^-3 M and [Ag +] = 0.500 M. Calculate the molarities of zinc and silver ions after a current of 2.00 amperes flow for 20 hours. Please show step by step and the units you are using.