Miller137 Miller137

17-10-2022
Chemistry

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In an electroplating facility a technician is trying to recover gold from the aq waste by immersing a ZN bar into a solution of Au(NO3)3. Zinc bar starts dissolving and metallic gold grows on it
3Zn + 2Au(NO3)3 --> 2Au +3Zn(NO3)2
a. identify the elements that are oxidized, reduced
b. What mass of Au is theoretically possible from a 1.005g Zn bar and 0.250L of 0.0317M Au(NO3)3?
c. The limiting reagent is? The excess reagent is?
d. if the actual yield of Au from the above process was found to be 0.087g what is the % yield of Au
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