equal volumes of oxygen and an unknown gas weigh 3.00g and 7.50g , respectively . whichh is the unknown gas
a- Co2
b- No2
c- NO
d - so3
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HEYA USER!
moles of O2 = 3.00 g / 32 g / mol = 0.09375 moles
we assume the 2 gasses are measured at the same temp and pressure
so moles of unknown gas = 0.09375 moles
molar mass of the unknown gas = 7.50 g / 0.09375 moles
= 80 g / mol
the unknown is SO3 gas
I HOPE IT HELPS YOU!
I THINK IT'S RIGHT!
moles of O2 = 3.00 g / 32 g / mol = 0.09375 moles
we assume the 2 gasses are measured at the same temp and pressure
so moles of unknown gas = 0.09375 moles
molar mass of the unknown gas = 7.50 g / 0.09375 moles
= 80 g / mol
the unknown is SO3 gas
I HOPE IT HELPS YOU!
I THINK IT'S RIGHT!
noo69:
why taken moles as 0.09375
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