Post a New Question

chemistry

posted by .

Suppose a car's motor draws 231 Ampere of current for 6.3 sec to start the car. What mass of Pb is oxidized in the lead-acid battery to supply this much electricity?

  • chemistry -

    231 A x 6.3 sec = about 1,500 Coulombs but you need to do it more accurately.
    96,485 coulombs will oxidize 1/2 mol Pb which is 207.2/2 = 103.6 g Pb. The amount of Pb deposited will be

    103.6 x (1,500/95,485) = ? g Pb.

  • chemistry -

    Thanks!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    I have to build a mini solar car for a school project and i have three solar cells that i bought. whenever i hook up the solar cells i get a reading between 1.5-1.8 volts, but when i hook it up to the motor it wont start it. According …
  2. Electricity

    A motor running at its rated power provides 2.6 lb-ft torque at its rated speed of 2020 rpm. The motor draws 5.6-A from a 230-V supply at a phase angle of 37 degrees. Determine the following: The horsepower delivered by the motor, …
  3. Physics

    A car battery is rated at 90A hr, meaning that it can supply a 90A current for 1 hr before being completely discharged. If you leave your headlights on until the battery is completely dead, how much charge leaves the positive terminal …
  4. physics- electricity

    An electric car uses a lithium metal hydride battery with a mass of 250 kg. The battery delivers 300v and holds a stored charge q of 70 ampere-hours. Calculate the total energy stored in the battery in kWh. Calculate the number of …
  5. Physics

    The electric starter in an automobile equipped with a 12 V battery draws a current of 100.00 A when in operation. Suppose it takes the motor 4.00 s to start the engine. What amount of electric energy has been withdrawn from the battery?
  6. physics

    The figure below shows a train with 3 compartments only. Each of the compartments has a mass of 30 tons . Two of them are motor cars while the other one is a trailer car. Each of the motor cars provides a driving force F. Suppose the …
  7. Chemistry

    Which statement correctly identifies how a lead-storage battery in a car works?
  8. Easy chemistry

    Which statement correctly identifies how a lead-storage battery in a car works?
  9. physics

    small toy car draws a 0.50mA from a 3.0 V nickel-cadmium(NiCd) battery. In 10 min of operation, (a) how much charge flows through the toys car?
  10. Chemistry 1002

    Over a period of time, the concentration of sulfuric acid in a lead storage battery of an automobile has decreased from 38 percent by mass(density=1.29 g/mL) to 26 percent by mass(1.19 g/mL). Assume the volume of the acid remains constant …

More Similar Questions

Post a New Question