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Q. Using a sample of 153-mL gas has a mass of 0.171 g at a temperature of 32 degree Celsius and a pressure of 761 mm Hg . Calculate the molar mass of the gas? If R=0.0821 L atm / mol K

Q. Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass?

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