A 10-L vessel filled with O_(2) at 30 K is connected to an open limb manometer containing glycerine. The level in the open limb was found to be higher than the other limb by 50 cm. Calculate the number of moles of the gas in the vessel (Given d_("glycerine")=2.72 g mL^(-1), d_(Hg)=13.6 g mL^(-1))

A 10-L vessel filled with O_(2) at 30 K is connected to an open limb m

1.	A 10-L vessel filled with O_(2) at 30 K is connected to an open limb manometer containing glycerine. The level in the open limb was found to be higher than the other limb by 50 cm. Calculate the number of moles of the gas in the vessel (Given d_("glycerine")=2.72 g mL^(-1), d_(Hg)=13.6 g mL^(-1))
Answer» Solution :`(hxxdxxg)Hg=(hxxdxxg)_("GLYCERINE")` `hxx13.6=50xx2.72"or"h=10 CM` `P_(gas)=(76+10)_(cm)=86 cm` `PV=nRT :. (86)/(76)xx10=n0.0821xx300"or"n=0.46" mole"`.