What do you have to do before you preform your experiment? a. the experiment
b. analyze data
c. form hypothesis

93.4 kPa

Explanation:According to Dalton law of partial pressure, the total pressure of a mixture of gases is equivalent to the sum of partial pressures of individual gases.That is, P(total) =P₁ + P₂ +P₃ , where P₁, P₂ and P₃ are partial pressures of individual gases.

In this case,

P(Po) = 20.0 kPa

P(PN) = 46.7 kPa

P(Phe) = 26.7 kPa

Therefore, the total partial pressure will be;

P(total) = 20.0 kPa + 46.7 kPa + 26.7 kPa

          = 93.4 kPa

Therefore, the total pressure of the ga mixture is 93.4 kPa