What is the mole fraction of H2 in a mixture with the total pressure of 800 torr when the partial pressure of H2 is 90 torr?
XH2 = PH2/total P = 90/800
To calculate the mole fraction of H2 in a mixture, you need to know the partial pressure of H2 and the total pressure of the mixture.
Mole fraction (X) is calculated by dividing the partial pressure of the component by the total pressure of the mixture.
In this case:
Partial pressure of H2 (PH2) = 90 torr
Total pressure of the mixture (Ptotal) = 800 torr
The mole fraction of H2 can be calculated as follows:
Step 1: Divide the partial pressure of H2 by the total pressure of the mixture:
X = PH2 / Ptotal
X = 90 torr / 800 torr
Step 2: Simplify the fraction:
X = 0.1125
Therefore, the mole fraction of H2 in the mixture is 0.1125.
To find the mole fraction of H2 in a mixture, you need the partial pressure of H2 and the total pressure of the mixture. The mole fraction of a component (in this case, H2) is defined as the ratio of the number of moles of that component to the total number of moles in the mixture.
To calculate the mole fraction of H2, you can use the following formula:
Mole fraction of H2 = (Partial pressure of H2) / (Total pressure of mixture)
In this case, the partial pressure of H2 is given as 90 torr, and the total pressure of the mixture is given as 800 torr.
Plugging these values into the formula, we get:
Mole fraction of H2 = 90 torr / 800 torr
Simplifying the expression, we get:
Mole fraction of H2 = 0.1125
Therefore, the mole fraction of H2 in the mixture is 0.1125.