For the reactions shown below, we added 2.25 mL of 0.0540 M HCl to a test tube containing one of the two cations (Ag+ or Pb2+) and recovered 0.0174 g of precipitate.
AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)
Pb(NO3)2(aq) + 2 HCl(aq) → PbCl2(s) + 2 HNO3(aq)
How much precipitate in moles would be recovered theoretically if the ion was Ag+? (Enter an unrounded value. Use at least one more digit than given.) (in mol)
How much precipitate in moles would be recovered theoretically if the ion was Pb2+? (Enter an unrounded value. Use at least one more digit than given.) (in mol)
How much precipitate in grams would be recovered theoretically if the ion was Ag+? (in g)
How much precipitate in grams would be recovered theoretically if the ion was Pb2+? (in g)
Based on the precipitate amount recovered, which of the two ions was in the unknown? Ag+ OR Pb2+