Question

How many liters of hydrogen needs to be reacted with chlorine to produce 21g of hydrochloric acid, at STP?
H2 + Cl2 ==> 2HCl
mols HCl = 21/molar mass HCl.
mols H2 = 1/2 that (from the coefficients in the balanced equation).
mols H2 at STP = L/22.4; therefore
L H2 = mols H2 x 22.4 L/mol = ?

Related Questions

Suppose 20 atoms of hydrogen (H) react with chlorine (Cl) to produce 20 molecules of hydrochloric ac... Suppose 20 atoms of hydrogen (H) react with chlorine (Cl) to produce 20 molecules of hydrochloric ac... Suppose 20 atoms of hydrogen (H) react with chlorine (Cl) to produce 20 molecules of hydrochloric ac...