Answer:
Vapor pressure for solution is: 20.48 Torr
Explanation:
Formula to be applied: ΔP = P° . Xm
ΔP = P° - P'
P° → Vapor pressure of pure solvent
P' → Vapor pressure of solution
Xm = Mole fraction.
Let's replace data → 26.5 Torr - P' = 26.5 Torr . 0.227
P' = - (26.5 Torr . 0.227 - 26.5 Torr) →
I believe a possible Lewis dot structure that does not obey the octet rule, where all elements are required to have 8 electrons in their outermost shell, would be the SF4 molecule.
Sulfur can contain an more than 8 electrons, in this molecule and thus has an expanded octet.
To solve this question, we first need to know the mass of one mole of mercury. This can be done by checking the periodic table.
From the periodic table, we can see that:
molar mass of mercury = 200.59 grams/mole.
From the measurements, the chemist found that the participated amount of mercury is 0.02 moles.
We can simply determine the mass of 0.02 moles by doing cross multiplication as follows:
mass of 0.02 moles = (0.02 x 200.59) / 1 = 4.0118 grams
Rounding the answer to 2 significant digits, we get:
mass of 0.02 moles = 4.01 grams
Possibly chemical amount.
Answer:
the rate slow down
Explanation:
there is less kinetic energy in the system so fewer molecules will have the required energy to overcome the activation energy barrierv