Question

How can you calculate partial pressure?

Answer 1

In this question, we are going to calculate the partial pressure.
By applying Dalton’s law of partial pressure we get the result.
Hence we can calculate the partial pressure.
Formula used:
The Dalton's law of partial pressure is defined as
${P_{Total}} = {P_{gas\,1}} + {P_{gas\,2}} + {P_{gas\,3}} + ...$
Where ${P_{Total}}$ equals the total pressure of the mixture, and ${P_{gas\,1}} + {P_{gas\,2}} + {P_{gas\,3}} + ...$ are the partial pressures of the gases present in the mixture.

Complete step by step answer:
In this question, we are going to calculate the partial pressure by using Dalton’s law
Dalton’s law of partial pressure states that the total pressure of a mixture of gases is the sum of the partial pressures of its components.
Each gas in a mixture of gases exerts a pressure, known as partial pressure that is equal to the pressure the gas would exert if it were the only gas present.
Calculate the partial pressure of each gas by using the corollary of Dalton's law, which states that each partial pressure is the same percent of the total pressure as the percent gas is of the total volume.
The difference between the total pressure of the three gases and the total pressure of the air sample is due to the partial pressure of other gases.
When applying the required values in the formula we can get the result.

Note: A corollary of this law is that, in a mixture of gases, the percent of each gas in the total volume is the same as the percent each partial pressure in the total pressure. From the total pressure of a mixture of gases and its percent composition, we can calculate the partial pressure of the individual gases.
$\dfrac{{{V_{gas}}}}{{{V_{total}}}} = \dfrac{{{P_{gas}}}}{{{P_{total}}}}$