Question
The mass of an evacuated $255 \mathrm{~mL}$ flask is $143.187 \mathrm{~g}$. The mass of the flask filled with 267 torr of an unknown gas at $25^{\circ} \mathrm{C}$ is $143.289$ g. Calculate the molar mass of the unknown gas.
Step 1
First, we need to find the mass of the gas. We can do this by subtracting the mass of the evacuated flask from the mass of the flask filled with the gas: Mass of gas = Mass of filled flask - Mass of evacuated flask Mass of gas = 143.289 g - 143.187 g = 0.102 Show more…
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The mass of an evacuated 255-mL flask is 143.187 g. The mass of the flask filled with 267 torr of an unknown gas at 25 C is 143.289 g. Calculate the molar mass of the unknown gas.
The mass of an evacuated 255-ml flask is 143.187 g. The mass of the flask filled with 267 torr of an unknown gas at 25 c is 143.289 g. calculate the molar mass of the unknown gas.
The mass of an evacuated 255-mL flask is 143.187 g. The mass of the flask filled with 271 torr of an unknown gas at 25 °C is 143.290 g. Part A: Calculate the molar mass of the unknown gas.
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