Question
how many grams of hydrogen chloride is needed to produce 200 grams of hydrogen
Answers
DrBob222
This is a stoichiometry problem. Here is a solved example of a stoichiometry problem. Just follow the steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html
http://www.jiskha.com/science/chemistry/stoichiometry.html