A metal object is to be gold-plated by an electrolytic procedure using aqueous aucl3 electrolyte. Calculate the number of moles of gold depo

Question

A metal object is to be gold-plated by an electrolytic procedure using aqueous aucl3 electrolyte. Calculate the number of moles of gold deposited in 3.0 min by a constant current of 10. A.

in progress 0
Calantha 5 years 2021-07-24T00:06:47+00:00 1 Answers 164 views 0

Answers ( )

  1. diemthu
    0
    2021-07-24T00:08:17+00:00
    Reply

    Answer:

    Explanation:

    charges passed = current x time

    = 10 x 3 x 60

    = 1800 C

    mole of charge = 1800 / 96500

    = .01865  moles

    Au⁺³ contains 3 positive charges

    3 mole of charge will deposit 1 mole of Au

    .01865  moles  will deposit .01865 / 3 mole

    = 6.2167 x 10⁻³ moles .

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )