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A closed vessel having capacity 200ml is filled with hydrogen gas at STP . calculate (1) number of moles of hydrogen gas filled in vessel

(2)pressure of hydrogen gas in the vessel at 237c


For the first question ; 200 / 22400 ml -> about 0.009 moles
0 0 0
for the second question ; use the PV=nRT so it will be like this (P)(0.2) = (0.009)(0.082)(510) and so P will equal 1.88 atm
try to check that later, okay? I'm not that sure with the second one
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