22 4 litres of gas weighs 70 g at stp calculate the weight of the gas if it occupies the volume of 20 litres at 27C and 700mm Hg of pressure

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Solution

According to question-

Given-
T =300K
P =700mm Hg
V =20L

22.4 L of the gas occupies 70 g at STP
Thus, 70 g is the the molar mass of the gas

Formula used -

PV=nRT
n= no. of moles
PV = (Mass/Molar mass) x RT

mass (m)=PVM/RT
= [(700×20×70)]/(760×.082×300)
=52.41 g

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22 4 litres of gas weighs 70 g at stp calculate the weight of the gas if it occupies the volume of 20 litres at 27C and 700mm Hg of pressure

According to question- Given- T =300K P =700mm Hg V =20L 22.4 L of the gas occupies 70 g at STP Thus, 70 g is the the molar mass of the gas Formula used - PV=nRT n= no. of moles PV = (Mass/Molar mass) x RT mass (m)=PVM/RT = [(700×20×70)]/(760×.082×300) =52.41 g

According to question-

Given-
T =300K
P =700mm Hg
V =20L

22.4 L of the gas occupies 70 g at STP
Thus, 70 g is the the molar mass of the gas

Formula used -

PV=nRT
n= no. of moles
PV = (Mass/Molar mass) x RT

mass (m)=PVM/RT
= [(700×20×70)]/(760×.082×300)
=52.41 g