Question

How can you calculate partial pressure?

Answer 1

https://m.wikihow.com/Calculate-Partial-Pressure#Calculating_Partial.2C_Then_Total_Pressures

Refer to this site for your answer

Answer 2

Here is your answer ....

In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas if it alone occupied the entire volume of the original mixture at the same temperature....

FORMULA...

P (Total)=P1+PE+P3.....