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The density of Cl2 gas at 50C and 1.6 atm is (R= 0. 082Latm/(molk)) 1)2.14 2)4.28...

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lak-86 | Student, Undergraduate | (Level 1) Salutatorian

Posted July 31, 2013 at 7:18 AM via web

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The density of Cl2 gas at 50C and 1.6 atm is

(R= 0. 082Latm/(molk))

1)2.14

2)4.28

3)8.46

4)13.8

5)10

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jeew-m | College Teacher | (Level 1) Educator Emeritus

Posted July 31, 2013 at 7:25 AM (Answer #1)

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Using the ideal gas equation for the `Cl_2` gas;

`PV = nRT`

We know that `n = m/M` where m is mass and M is molar mass.

`PV = m/MRT`

`PM = (m/V)RT`

`m/V = d` (density)

molar mass of `Cl_2 = 71g/(mol)`

`PM = dRT`

`d = (PM)/(RT)`

`d = (1.6xx71)/(0.082xx(273+50))`

`d = 4.289`

So the density of the gas is `4.289g/(ml)`

So the best suited answer is 4.28 which is answer 2)

Assumption

`Cl_2` act as an ideal gas.

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