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OpenStudy (anonymous):
A 250 mL sample of nitrogen(N2) has a pressure of 745 mm Hg at 30 C.What is the mass of nitrogen?
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OpenStudy (sriram):
use P*V=n*R*T we know P,V,R & T find n i.e. number of moles mass=n*14
OpenStudy (preetha):
Convert the mm Hg to atm first. 760 mm Hg = 1 atm
OpenStudy (preetha):
And C to Kelvin. K = C+ 273.15
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