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2. Chemistry

2 answers

1. 0.0020315*74.5513 = 0.1513
   % = 0.1513/0.2500 * 100 =60.52

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   answered by Korede

   Dec 4, 2021

2. KCl + AgNO3 ==> AgCl + KNO3
   mols AgCl formed = g/molar mass = 0.2912/143.34 = 0.0020315
   The ratio of KCl to AgCl is 1:1; therefore, mols KCl to start must be 0.0020315. Grams KCl = mols KCl x molar mass KCl = ?
   % KCl = (grams KCl/mass sample)*100 = ?
   Post your work if you get stuck. Check those molar mass and calculations. I tried to do that from memory.

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   👤

   DrBob222

   May 22, 2021

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