chemistry

Potassium cyanide (KCN) reacts with acids to produce the poisonous hydrogen cyanide gas, HCN, according to the reaction below:
KCN(aq) + HCl(aq) = HCN(g) + KCl(aq)
If a sample of 0.653 g of KCN is placed in an excess of HCl, how much HCN, in grams, is produced?

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asked by Kara
  1. Just follow the steps in this worked example.
    http://www.jiskha.com/science/chemistry/stoichiometry.html

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    posted by DrBob222
  2. did u get the answer?

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    posted by becca
  3. i have this exact same problem and i cannot figure out the answer. can you please help?

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    posted by becca
  4. Follow the steps in the example.

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    posted by DrBob222

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