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P. V. b arometric pressure = inches Hg. v apor pressure (H 2 O)= atm. v olume of H 2 gas = ml. x. P H2 = P barometric – P H2O. Data: Determination of the Gas Constant R. v olume of H 2 gas = L. R=. pressure of H 2 gas = atm.
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P V barometric pressure = inches Hg vapor pressure (H2O)= atm volume of H2 gas = ml • x PH2 = Pbarometric – PH2O Data: Determination of the Gas Constant R volume of H2 gas = L R= pressure of H2 gas = atm temperature = oC mass of Mg = 0.043 grams • x moles of H2 gas = temperature = K n T