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Chapter 5: Q5.31P (page 228)

A 75.0-g sample of dinitrogen monoxide is confined in a 3.1-L vessel. What is the pressure (in atm) at 115掳C?

Short Answer

Expert verified

Answer

The pressure of the given gas is 17.47 atm.

Step by step solution

01

Ideal gas law

The ideal gas law equation is,

PV=nRT

The ideal gas law for the given condition can be written as,

P=nRTV

Here,

V is the volume (3.1 L)

T is the temperature (115掳C=388K).

n is the number of moles (1.70 mol).

The number of moles of the gas are,

Moles=massMolarmass

02

Determination of pressure

The number of moles will be,

Moles=75.0g44.013g/mol=1.70mol

And thepressure of the gasis,

P=nRTVP=(1.70mol)脳0.0821LatmK-1mol-1脳388K3.1LP=17.47atm

Thus, the pressure of the given gas is17.47 atm.

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