A 250 mL flask contains 3.4 g of neon gas at 45°C.Calculate the pressure of the neon gas inside the flask. A)0.050 atm B)0.46 atm C)18 atm D)38 atm E)3.5 x 10² atm

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Quizplus · Accepted Answer

To find the pressure, use the ideal gas law: PV = nRT. First, convert the mass of neon to moles (3.4 g / 20.18 g/mol = 0.168 moles). Convert the volume to liters (250 mL = 0.250 L) and temperature to Kelvin (45°C = 318 K). Use R = 0.0821 L·atm/mol·K. Plug in the values: P(0.250 L) = (0.168 mol)(0.0821 L·atm/mol·K)(318 K), solving for P gives approximately 18 atm.

A 250 ML Flask Contains 3