Potassium cyanide (KCN) reacts with acids to produce the poisonous hydrogen cyanide gas, HCN, according to the reaction below:

Question

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?

Answer 1

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

Answer 2

did u get the answer?

Answer 3

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

Answer 4

Follow the steps in the example.