What is the volume of 5.60 g of O₂ at 7.78 atm and 415 K? A) 1.53 L B) 565 L C) 24.5 L D) 25.0 L E) 0.766 L

Name: What is the volume of 5.60 g of O 2 at 7.78 atm and 415 K? A) 1.53 L B) 565 L C) 24.5 L D) 25.0 L E) 0.766 L
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Quizplus · Accepted Answer

Using the ideal gas law, PV = nRT, where n = mass/molar mass. For O2, molar mass = 32 g/mol. n = 5.60 g / 32 g/mol = 0.175 mol. R = 0.0821 L·atm/mol·K. V = nRT/P = (0.175 mol)(0.0821 L·atm/mol·K)(415 K) / 7.78 atm = 0.766 L.

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