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mabutler2013
20.10.2020 •
Chemistry
Which of the electron configurations below are not correct?
1. P3- [Ne) 352 3p6
II. Ge: [Ar]452 40104p2
III. : [Xe]
IV. V2+ [Ar]3d3
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Ответ:
Answer : The the partial pressure of the nitrogen gas is 0.981 atm.
The total pressure in the tank is 2.94 atm.
Explanation :
The balanced chemical reaction will be:
First we have to calculate the moles of dimethylhydrazine.
Mass of dimethylhydrazine = 150 g
Molar mass of dimethylhydrazine =60.104 g/mole
Now we have to calculate the moles of
gas.
From the balanced chemical reaction we conclude that,
As, 1 mole of
react to give 3 moles of
gas
So, 2.49 mole of
react to give
moles of
gas
Now we have to calculate the partial pressure of nitrogen gas.
Using ideal gas equation :
where,
P = Pressure of
gas = ?
V = Volume of
gas = 250 L
n = number of moles
gas = 7.47 mole
R = Gas constant =![0.0821L.atm/mol.K](/tpl/images/0341/3301/a454c.png)
T = Temperature of
gas = ![127^oC=273+127=400K](/tpl/images/0341/3301/78347.png)
Putting values in above equation, we get:
Thus, the partial pressure of the nitrogen gas is 0.981 atm.
Now we have to calculate the total pressure in the tank.
Formula used :
where,
Now put all the given values in the above formula, we get:
Thus, the total pressure in the tank is 2.94 atm.