Answered

determine the number of moles (n) of krypton gas contained in a 3.25 liter tank at a pressure of 5.80 atm and a temperature of 25.5 oc?

Answer :

The number of moles of krypton are 7.6 moles.

According to Ideal gas law,

PV = n RT

Where

P = Pressure

V = Volume

n = number of moles

R = Universal gas constant

T = Temperature

Given

P = 5.80 atm

V =  3.25 L

T = 25.5 °C

R = 8.314

Now substituting the Value in the formula

PV = n RT

So separate the n from the formula

n = PV/RT

n= 5.80 × 3.15 × 1000 / 8.314 × 298.5

n=7.59

n ≈ 7.6 moles

Therefore the moles of krypton is 7.6 moles

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