gen chem

what must be the current in amperes to plate out 7.437g of Al from am aqueous solution of Al3+ in 5.4x10^2 minutes?

  1. 👍 0
  2. 👎 0
  3. 👁 61
asked by Chem
  1. A x seconds = coulombs.
    It will take 96,485 coulombs to plate (26.98/3) g Al.
    Coulombs = 96,485 x (7.437 x 3/26.98) = ??
    Substitute into the first equation and solve for A. Time is 540 min x 60 s/min.

    1. 👍 0
    2. 👎 0
    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry HELP URGENT PLEASE!!!

    what current (in amperes) is required to plate out 2.85 g of Cr from a Cr^3+ solution in a period of 2.50 hr?

    asked by Maho on March 17, 2014
  2. science (circuits)

    A students finds a resistance in a transistor radio. When the resistance is connected to a battery of 1.5 volts, the current is 0.0025 amperes. When the resistance is connected to four batteries with a voltage of 1.5 volts, the

    asked by Anonymous on March 10, 2018
  3. chemistry

    What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 180.0 minutes using a constant current of 10.0 amperes? (One faraday = 96,500 coulombs.)

    asked by ill matic on June 11, 2010
  4. Chem

    How many grams of nickel can be produced by passing a current of 15.0A through aqueous nickel(II) chloride for 80.0 minutes? I'm not sure if I'm on the right path... All I know is that 1 coloumb= amperes x seconds 1F=96485c/eq

    asked by Ginger on March 31, 2008
  5. physics

    five resistors of 30 ohms each are connected in parallel across a 120 volt line. the combined resistance of the five resistors is ___ ohms. The total current in the circuit is ___ amperes. The current in each branch is ___

    asked by please help on May 18, 2011
  6. Science

    What are fuses and why do they come in different sizes? Fuses are devices placed in electrical circuits as protection for those circuits. They consist of small pieces of wire, sometime as ribbons, and are placed in series with the

    asked by Bethan on September 28, 2006
  7. Pre Calculus

    The electricity in your house is alternating current because the current varies sinusoidally with time. The frequency of sinusoid is 60 cycles per second. Suppose at Time = 0 seconds the current is at its max of 5 amperes. Write

    asked by Kevin on March 30, 2010
  8. Physics

    (a) In the LC circuit shown in the figure, the current is in the direction shown and the charges on the capacitor have the signs shown. At this time, a) the current is increasing and the charge on the positive plate is increasing.

    asked by Anonymous on June 16, 2013
  9. math

    The equation P=240I-8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of I amperes is passing through the circuit. (a)Find the maximum power (in watts)that can be delivered

    asked by Shirley on February 23, 2008
  10. Chemistry

    A solution of H2SO4 was electrolyzed using the inert platinum electrodes. A) Write the balanced half-reactions for the anode and cathode in this cell. B) How many coulombs passed through the cell in 90 minutes at 8.0 amperes? C)

    asked by Melanie on January 6, 2013

More Similar Questions