15.2 g of no2(g) is placed in a sealed 10.0 l flask at room temperature. the total pressure of the system is found to be 0.50 atm. what are the partial pressures of no2and n2o4are present?
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Ответ:
Partial pressure of NO2 = 0.37 atm
Partial pressure of N2O4 = 0.13 atm
Explanation:
Number of moles of NO2 = mass/MW = 15.2g/46g/mole = 0.33 mole
Volume of flask = 10L
1 mole of the mixture of gas contains 22.4L of the gas
10L of the gas contains 10/22.4 mole = 0.45 mole
Total mole of gas mixture in the tank = 0.45 mole
Total pressure of the system = 0.5atm
Partial pressure of NO2 = 0.33mole/0.45mole × 0.5atm = 0.37 atm
Partial pressure of N2O4 = 0.5atm - 0.37atm = 0.13atm
Ответ:
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Explanation: