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When using the Dumas method to determinethe molar mass of a volatile material, a studentfails to wipe off the outside of the test tube.What will this do to their calculations?A. The calculated Molar Mass will be too high.B. The calculated Molar Mass will not be affected.C. The calculated Molar Mass will be too low.

When Using The Dumas Method To Determinethe Molar Mass Of A Volatile Material A Studentfails To Wipe Off The Outside Of The Test TubeWhat Will This Do To Their class=

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Answer

A. The calculated molar mass will be too high.

Explanation

The Dumas method is a method appropriate to determine the molecular weights of volatile organic substances that are liquids at room temperature.

So when using this method to determine the molar mass of a volatile material, and a student fails to wipe off the outside of the test tube, it implies the calculated molar mass will be too high. This is because some particle will have stick to

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