Chemistry

A current of 45A is pass through a solution of gold salt for 1hours 45minute. Calculate Mass of gold deposited, b) number of mole deposited c) if the same current is used find the time taken for 5.5g to be deposited

  1. 👍
  2. 👎
  3. 👁
  1. coulombs = amperes x seconds
    coulombs = 45 x 1.75 hr x (60 min/hr) x (60 sec/min) = 283,500
    96,485 coulombs will deposit 1/3 of a mol of Au from Au^3+ solutions.
    So 1/3 mole x (283,500/96,485) = ? mols Au deposited.
    You have all of the info needed. Can you do the last part?

    1. 👍
    2. 👎
    👤
    DrBob222
  2. no

    1. 👍
    2. 👎
  3. No

    1. 👍
    2. 👎
  4. No

    1. 👍
    2. 👎
  5. No

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. General Chemestry

    A galvanic (voltaic) cell consists of an electrode composed of chromium in a 1.0 M chromium(II) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the

  2. AP CHEMISTRY

    An unknown salt is either KBr, NH4Cl, KCN, or K2CO3. If a 0.100 M solution of the salt is neutral, what is the identity of the salt?

  3. chemistry

    A current of 45A is passing through a solution of gold salt for 1:45 minutes a)calculate the mass of AU deposited b )number of mass deposited c) if the same current is use find the time taken for 5.5 g of the AU deposited

  4. chemistry

    A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was

  1. SCIENCE(CHEMISTRY)

    calculate the mass of silver deposited when a current of 2.6a is passed through a solution of a silver salt for 70mins ag=108,1 faraday 96500

  2. History

    Drag the word to the description it matches. gold, salt, ivory, copper Horses goods that originated from Mali ivory,salt goods that Mali obtained through trade gold,copper Please help Ms. Sue

  3. Chemistry

    0.222g Of A Divalent Metal Is Deposited When A Current Of 0.45 Amperes Is Passed Through A Solution Of It's Salt For 25 Minutes Using Appropriate Electrodes. Calculate The Relative Atomic Mass Of The Metal. (1 Faraday =96500c/mol)

  4. chemistry

    A. Strong Base 1.) What is the concentration of a solution of KOH for which the pH is 11.89? 2.) What is the pH of a 0.011M solution of Ca(OH)2? B. Weak Acid 1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. Calculate the Ka

  1. chemistry

    A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was

  2. chemistry

    Treatment of gold metal with BrF3 and KF produces Br2 and KAuF4, a salt of gold. Find the mass of the gold salt that forms when a 73.0 -g mixture of equal masses of all three reactants is prepared.

  3. world history

    Why was the oral tradition important in Africa? A.) It was a ritual believed to bring rainfall. B.) It was used to communicate with the king. C.) It helped pass traditions to younger generations D.) It helped ensure the success of

  4. chemistry

    SALT HYDROLYSIS 1.) Calculate the pH of a 0.24M sodium formate (HCOONa) solution. Kb=5.9x10^-11. 2.) Calculate the pH of 0.25M pyridium chloride (C5H5NHCl)solution. Ka=5.9x10^6.

You can view more similar questions or ask a new question.