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## Homework Statement

calculate the pressure of 3.2gm of O

_{2}gas in acontainer its volume 4000ml at 100

^{o}C knowing that the molucul mass for O

_{2}= 16u

## Homework Equations

## The Attempt at a Solution

PV=nRT

P=3.2x8.314x373x1000000 /(16x2x4000 )

## Homework Statement

At atmospheric pressure and at 0

^{o}C and the molecule mass for Nitrogen is 28 u so the volume for 1Kg mol equal

## Homework Equations

## The Attempt at a Solution

PV=nRT

V = 273x8.314 /28x1.o13x10

^{5}