Throwing some scrap iron in a gold nitrate solution causes the gold metal to precipitate. How many liters of 0.5 M gold nitrate solution would react with 2.8x1023 particles of iron metal?
Reaction:
Au3+ + Fe = Fe3+ + Au
V(Au(NO3)3 solution) = 2.8x1023/(6.02x1023)/0.5 = 0.93 L
Answer: 0.93 L
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