Answer:
The volume of the vessel is 250 L
Partial pressure of hydrogen = 189 torr
Explanation:
Using Boyle's law
Given ,
V₁ = 20.0 L
V₂ = ?
P₁ = 25 atm
P₂ = 2 atm
Using above equation as:
<u>The volume of the vessel is 250 L.</u>
According to Dalton's law of partial pressure:-
So, according to definition of mole fraction:
Also,
Mole fraction of H₂ = 1 - Mole fraction of He = 1 - 0.75 = 0.25
So,
Total pressure = 756 torr
Thus,
<u>Partial pressure of hydrogen = 189 torr.</u>
Explanation:
two moles sodium (45.98 g), one mole sulfur (32.06 g), and four moles oxygen (64.00 g) combine to form one mole of sodium sulfate (142.04 g).
Answer:
I would say a dense cloud of interstellar gas and dust.
Answer:
quoted, but you can learn from this.
Explanation:
"The different types of microscopes are all necessary because not all experiments require the same level of magnification.<em> [ For dissections low magnification is sufficient, so a dissecting microscope works very well, while for viewing single cells the 1000 fold magnification of a compound light microscope is more than adequate. ] " </em>
Answer:
Following are the solution to this question:
Explanation:
![[H_3O^{+}] =[HCl] \\\\\to [H_3O^{+}] =0.5064 \ m \\\\\to PH =-\log [H_3O^{+}] \\\\](https://tex.z-dn.net/?f=%5BH_3O%5E%7B%2B%7D%5D%20%3D%5BHCl%5D%20%5C%5C%5C%5C%5Cto%20%5BH_3O%5E%7B%2B%7D%5D%20%3D0.5064%20%5C%20m%20%5C%5C%5C%5C%5Cto%20PH%20%3D-%5Clog%20%5BH_3O%5E%7B%2B%7D%5D%20%5C%5C%5C%5C)
