in the laboratory, concentrated hydrogen chloride acid reacted with aluminium. hydrogen gas evolved was collected over water at 25 degree celcius and had a volume of 355 centimetre cube at a total pressure of 750mmHg.(the vapour pressure of water at 25 degree celcius equal to 24mmHg. find the partial of hydrogen gas
=750-24 mmHg is the pressure of the H2
Thanks
To find the partial pressure of hydrogen gas, we can use Dalton's Law of Partial Pressures, which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each gas present.
In this case, we have hydrogen gas (H2) and water vapor (H2O) present. The total pressure is given as 750 mmHg, and the vapor pressure of water at 25 degrees Celsius is 24 mmHg.
The partial pressure of hydrogen gas can be calculated by subtracting the vapor pressure of water from the total pressure:
Partial pressure of hydrogen gas = Total pressure - Vapor pressure of water
Partial pressure of hydrogen gas = 750 mmHg - 24 mmHg
Partial pressure of hydrogen gas = 726 mmHg
Therefore, the partial pressure of hydrogen gas in this reaction is 726 mmHg.
To find the partial pressure of hydrogen gas, we need to consider the total pressure and the vapor pressure of water.
The total pressure (P_total) is given as 750 mmHg.
The vapor pressure of water (P_water) at 25 degrees Celsius is given as 24 mmHg.
To find the partial pressure of hydrogen gas (P_hydrogen), we can use Dalton's Law of Partial Pressures, which states that the total pressure exerted by a mixture of non-reacting gases is equal to the sum of the partial pressures of each gas component.
Mathematically, it can be represented as:
P_total = P_hydrogen + P_water
Rearranging the equation, we get:
P_hydrogen = P_total - P_water
Now, substituting the values we have:
P_hydrogen = 750 mmHg - 24 mmHg
P_hydrogen = 726 mmHg
Therefore, the partial pressure of hydrogen gas (P_hydrogen) is 726 mmHg.