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.

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 .

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is