A student designed his experiment based on Dumas method to determine the molecul

Question

A student designed his experiment based on Dumas method to determine the molecular 5 Pts mass of an unknown volatile liquid and tabulated the data obtained from his cxpcriment. From the given data calculate the Molar mass of the unknown liquid and percent error if the accepted molar mass is Y g/mol. Q8. Mass of flask, boiling stone, foil cap, & unknown liquid after cooling Mass of flask, boiling stone and foil cape Water bath temperature Barometric pressure Volume of the flask 80.573 g 80.192 g 99.0 C 720.15 Torr 0.124 L

Explanation / Answer

Molar Mass of unknown liquid = 80.573-80.192

= 0.381g

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