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Problem

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question

0.20 g of cuttings from a silver coin (containing Cu) was completely dissolved in HNO_3. Then aNaClsolution was added to precipitateAgCl, which, when collected and dried, weighed 0.2152 g. What is the indicated percent of Ag in the coin?

category

chemistry

options

  1. 87 %
  2. 85 %
  3. 65 %
  4. 88 %
  5. 92 %
  6. 81 %
  7. 72 %
  8. 75 %
  9. 78 %
  10. 90 %

src

stemez-Chemistry

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