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Two bulbs are connected by a stopcock. The large bulb, with a volume of 6.00 L, contains nitric oxide at a pressure of 0.850 atm, and the small bulb, with a volume of 1.50 L, contains oxygen at a pressure of 2.50 atm. The temperature at the beginning and the end of the experiment is 22∘C .
Two bulbs are connected by a stopcock. The large bulb, with a volume of 6.00 L, contains nitric oxide at a pressure of 0.850 atm, and the small bulb, with a volume of 1.50 L, contains oxygen at a pressure of 2.50 atm. The temperature at the beginning and the end of the experiment is 22∘C .After the stopcock is opened, the gases mix and react.
2NO(g)+O2(g)→2NO2(g)
1. Which gases are present at the end of the experiment?
2. What are the partial pressures of the gases? If the gas was consumed completely, put 0 for the answer.
Answer:(I). The gases are present at the end of the experiment are O₂ and NO₂(II). The pressure of O₂ is 0.158 atm.The pressure of NO₂ is 0.681 atmThe Pressure of NO is zero.Explanation:Given that,Volume of large bulb = 6.00 LPressure = 0.850 atmVolume of small bulb = 1.50 LPressure = 2.50 atmTemperature = 22°C = 295 KWe need to calculate the moles in NOUsing formula of molesPut the value into the formulaWe need to calculate the moles in OUsing formula of molesPut the value into the formulaThe balance equation for the reaction isSo, The gases are present at the end of the experiment are O₂ and NO₂We need to calculate the remaining moles of O₂Using formula for remaining molesMoles of O₂ remaining =Moles of NO₂ = 0.211 molesTotal volumePut the value into the formula(2).If the gas was consumed completelyWe need to calculate the pressure of O₂Using formula of pressurePut the value into the formulaWe need to calculate the pressure of NO₂Using formula of pressurePut the value into the formulaIf the gas was consumed completelyThen, Pressure of NO is zero.Hence, (I). The gases are present at the end of the experiment are O₂ and NO₂(II). The pressure of O₂ is 0.158 atm.The pressure of NO₂ is 0.681 atmThe Pressure of NO is zero....