# A gas has a density of 2.75 g L-1 at 46 °C and P = 1.04 atm. What will be its density at 175 °C? Calculate the molar mass of the gas, assuming it obeys the ideal gas law.Density at 175 °C = Molar mass =

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A gas has a density of 2.75 g L-1 at 46 °C and P = 1.04 atm. What will be its density at 175 °C? Calculate the molar mass of the gas, assuming it obeys the ideal gas law.

Density at 175 °C =

Molar mass =

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Step 1

Density of a substance is defined as the ratio of its mass to its volume.

Step 2

A mole of a substance refers to the mass of that substance which will contain same number of   atoms , molecules or formula unit as that are present exactly in 12.000 g of C-12.

Number of moles of a substance can be calculated from the ratio of mass of the substance to its molar mass.

Step 3

Ideal gas equation is

PV= nRT

Given ,

P = 1.04 atm

Density of the gas (d) = 2.75g/ L

R = 0.0821 atm L mol-1 K...

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### Physical Chemistry 