C).dd offspring have a nice day
Answer: The correct option is (c). The total pressure doubles.
Solution:
Initially, only 4 moles of oxygen gas were present in the flask.
(
) ( according to Dalton's law of partial pressure)
....(1)
= Total pressure when only oxygen gas was present.
Final total pressure when 4 moles of helium gas were added:
![X'_{O_2}=\frac{4}{8}=\farc{1}{2},X_{He}=\frac{4}{8}=\frac{1}{2}](https://tex.z-dn.net/?f=X%27_%7BO_2%7D%3D%5Cfrac%7B4%7D%7B8%7D%3D%5Cfarc%7B1%7D%7B2%7D%2CX_%7BHe%7D%3D%5Cfrac%7B4%7D%7B8%7D%3D%5Cfrac%7B1%7D%7B2%7D)
partial pressure of oxygen in the mixture :
Since, the number of moles of oxygen remains the same, the partial pressure of oxygen will also remain the same in the mixture.
![p_{O_2}=Tp_2\times X'_{O_2}=Tp_2\times \frac{1}{2}](https://tex.z-dn.net/?f=p_%7BO_2%7D%3DTp_2%5Ctimes%20X%27_%7BO_2%7D%3DTp_2%5Ctimes%20%5Cfrac%7B1%7D%7B2%7D)
= Total pressure of the mixture.
from (1)
![Tp_1=Tp_2\times X'_{O_2}=Tp_2\times \frac{1}{2}](https://tex.z-dn.net/?f=Tp_1%3DTp_2%5Ctimes%20X%27_%7BO_2%7D%3DTp_2%5Ctimes%20%5Cfrac%7B1%7D%7B2%7D)
On rearranging, we get:
![Tp_2=2\times Tp_1](https://tex.z-dn.net/?f=Tp_2%3D2%5Ctimes%20Tp_1)
The new total pressure will be twice of initial total pressure.
Answer:
The ground state electron configuration of ground state gaseous neutral tellurium is [Kr]. 4d10.
Cellar respiration simple if u need explanation just search up
Answer:
(C5H7)8
Explanation:
It's empirical formula is given as; C5H7
Molar mass of carbon(C) = 12 g/mol
Molar mass of hydrogen(H) = 1 g/mol
We are told that it's molar mass is 536 g/mol.
To find the molecular formula;
Molecular formula = n × empirical formula
Thus;
n = 536/((12 × 5) + (1 × 7))
n = 8
Thus;
Molecular formula = (C5H7)8