What's the volume of one mole of an ideal gas at Standard Temperature and Pressure? Question 17 options: A) 11.2 L B) 22.4 L C)
1 answer:
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Answer: Option (B) is the correct answer.
Explanation:
It is known that Henry's law is a relation between the concentration of a gas in a liquid (solubility) and the pressure it exerts on the surface of the liquid.
According to Henry's law, the pressure of a gas is directly proportional to the solubility of the gas in a liquid.
Henry's constant is represented by the symbol . And, mathematically it is represented as follows.
P =
where, P = pressure and C = solubility
As the pressure for the given species is the same. Hence, the standard values of solubility of the given species is as follows.
Gas Solubility
Ar
CO
Xe
As, Henry's constant is inversely proportional to the solubility. Hence, more is the value of solubility lesser will be the value of Henry's constant.
Thus, we can conclude that out of the given options CO have the largest Henry's law constant () in water.
Explanation:
Given parameters:
Mass of Br-79 = 78.918 amu
Abundance = 50.69%
Unknown:
Mass of Br - 81 = ?
Solution:
Relative Atomic mass of Br = 80
The proportion by which each fraction of an isotope occurs in nature is called the geonormal abundance.
RAM = Ma Ba + McBc
The formula above is used to find the average mass of the given isotopes.
Since we know the percentage abundance of Br-79, that of Br-81 = 100-50.69= 49.31%
RAM = Ma Ba + McBc
RAM = relative atomic mass
Ma Ba = mass and abundance of Br-79
McBc = mass and abundance of Br-81
80 = (78.918 x ) + (
x C)
80 = 40 + 0.49C
0.49C = 40
C = = 81.63amu
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