Is D density?
Zn + 2HCl ==> ZnCl2 + H2
Calculate mols Zn and convert to mols H2.
Then use PV = nRT
P will be 1.234 atm - vp H2O (in atm)[or convert 1.234 atm to mm Hg and use 21.0 mm for vp H2O)
Everything else is as usual and V will be ihn liters.
A 40.0 g sample of zinc is allowed to react with excess hydrochloric acid. How many liters of dry hydrogen gas are produced if the gas is collected over water at 23.0 degrees celsius and 1.234 atm of pressure? (Vapor pressure of water at 23.0 degrees celsius is 21.0 mmHg)
Correct me if I am wrong, but I thought I should use D=(PxM)/nRT to find the space hydrogen gas occupies and then find the liters of dry hydrogen gas produced with V=nRT/P. Is this the right process?
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