How many liters of HCl are produced by the reaction of 5.7 L of hydrogen with an equal amount of chlorine? The reaction occurs at STP.

Question

DrBob222 · Accepted Answer

H2 + Cl2 ==> 2HCl

When using equations containing all gases one can use a shortcut in which just the volumes are used. For example, use the coefficients in the equation above to convert 5.7 L H2 to L HCl.
5.7L H2 x (2 moles HCl/1 mole H2) = 5.7 x (2/1) = ? L HCl.

or
5.7 L Cl2 x (2 moles HCl/1 mole Cl2) = 5.7 x (2/1) = ? L HCl.