The total pressure is the sum of the partial pressures of each gas.
pN2 = nRT/V where n = grams of gas/molar mass of the gas
pHe = nRT/V
pO2 = nRT/V
Then Ptotal = pN2 + pHe + pO2
Post your work if you get stuck.
State Dalton law of partial pressure 10.0g of N2, 10.0g O2, and 8.0g of He are placed in a 5.0L that has been cooled to 9.5°C what is the partial pressure of each gas within the flaskas well as the total gas pressure
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