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12. Compute the molar mass of an unknown pure ideal gas if 3.88 g sample of the gas exerts a pressure of 0.524 atm at 25.1 °C
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mass w = 3.88 g op = 0.524 atm v= 4.75L R = 0.0821 L.atm. mot! k-1 Tx = c + 273.15 I = (25.1 + 213.15)k T = 298.25k! I mart w

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