Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Chemistry (https://www.askmehelpdesk.com/forumdisplay.php?f=68)
-   -   Electrolysis (https://www.askmehelpdesk.com/showthread.php?t=797702)

  • Jul 26, 2014, 11:20 PM
    REGIDI KEERTHI
    Electrolysis
    What mass of metallic copper would be deposited by the ekectrolysis of 10 grams of copper sulphate in water solution
  • Jul 19, 2015, 07:10 AM
    kreysiz
    Copper sulfate = CuSO4
    Molar mass of copper sulfate = 159.5 g/mole
    Thus, moles of CuSO4 in 10 g of it = mass of CuSO4/molar mass of CuSO4 = 10/159.5 = 0.063
    Now, 1 mole of CuSO4 contains 1 mole of Cu atoms
    Thus, 0.063 moles of CuSO4 contains 0.063 moles of Cu atoms
    Hence, moles of Cuatoms deposited after electrolysis of CuSO4 = 0.063
    Now, Atomic mass of Cu = 63.5 g/mole
    Thus, mass of Cu atom deposited = moles of Cu*molar mass of Cu = 0.063*63.5 = 3.981 g

  • All times are GMT -7. The time now is 02:27 PM.