Electrochemical cell

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.

Effects of H2O2 conc with catalyst ---- michaelis equation demonstration

I have come across a major stumbling block with my kinetics (michaelis equation). How do I predict using the michaelis equation the volume of oxygen collected for the given concentrations? Please could you give an example of the complete working out for any given concentration, where necessary (if required) making up values of any data I omitted. ----- see below ----- Aim: I am investigating the changes of hydrogen peroxide concentration on the rate of decomposition by catalase. Outline of method: The apparatus involve yeast(catalase), hydrogen peroxide, a 100cm3 gas syringe to collect oxygen. I am calculating the volume of gas collected in 30 seconds. The concentrati... click for more

Calculating the molarities in an electrochemical cell given current, time and concentrations. Attachments in Word.

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.

Identifying oxidizing and reducing agents

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 the oxidizing agent e. Ca is the reducing agent, VO3 is the oxidizing agent

chemistry

some questions about electrochemical cells