Question

a flask contains oxygen, carbon dioxide, and nitrogen gases. the partial pressures of each are 11.4 atm, 5.6 atm, and 8.7 atm, respectively. what is the total pressure in the flask in atm? total pressure, atm

Explanation:

Step1: Recall Dalton's Law

Total pressure = sum of partial pressures
$P_{\text{total}} = P_{\text{O}_2} + P_{\text{CO}_2} + P_{\text{N}_2}$

Step2: Plug in values

$P_{\text{total}} = 11.4 + 5.6 + 8.7$

Step3: Calculate sum

$11.4 + 5.6 = 17.0$; $17.0 + 8.7 = 25.7$

Answer:

25.7