# Calculate the pressure exerted bay a 0.25 mole sulfure hexafluoride in a steel vessel having a capacity of 1250 ml at 70.0 C

1
by cha5

2016-02-03T17:43:38+08:00

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Ideal Gas Law states that Volume,pressure, temperatures and numbers of moles are interrelates.

formula:

P = nRT/ V

given:

n = 0.25 mole
R = 0.0821 L.atm/ mole
T = 70.0 ° C
V = 1.25 L

substitute,

- remember that the volume must be converted first to liter.
- and always that temperature would be in Kelvin.

*70.0°C will be 343 K because ( 70.0 + 273.15 K )(constant given)

* 1250 ml will be 1.25 L because every 1000 ml is equal to 1 liter ) (cancel)

then,

P = n RT/ V
= (0.25 mole ) (0.0821 L atm / mole K )( 343 K) / 1.25 L
= 0.56 atm

therefore, the combine ideal gas is 0.56 atm

thank you very much it really helps me a lot.
thank u again and again
No problem.....