Partial pressure can be calculated from balanced equation as :
Partial pressure can be calculated from total pressure and mole fraction of a molecule. The equation of partial pressure is given as:
[tex] P_{partial }=P_{total }\times X [/tex]
Mole fraction can be calculated from number of moles of different substances, that we can get from a balanced equation.
If a balanced equation is as follows:
aA+bB---->cP
Mole fraction of A will be =
[tex] \frac{n_{a}}{n_{a}+n_{b}+n_{c}} [/tex]
And partial pressure of A will be:
[tex] P_{A}=P_{T}\times \frac{n_{a}}{n_{a}+n_{b}+n_{c}} [/tex]