He started the experiment by measuring the mass and freezing point of the pure solvent with minimal error. Instead of quickly finishing the experiment, he took a lunch break. After returning from lunch, he noted that the solvent had absorbed some imp atmosphere. He went ahead and performed the rest of the experiment anyway. Assuming a negligible (very minor) change in the mass of the solvent after absorbing impurities, which of the following choices contains only ca because of the experimental error, the measured AT will increase, the measured molality will increase, and the measured molar mass w additional error O because of the experimental error, the measured ATwill decrease, the measured molality will decrease, and the measured molar mass because of the experimental error, the measured ATwill decrease, the measured molality will increase, and the measured molar mass because of the experimental error, the measured ATwill decrease, the measured molality will increase, and the measured molar mas O because of the experimental error, the measured AT will increase, the measured molality will increase, and the measured molar mas

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A CHM 126 student performed the "Determination of Molar Mass by Freezing Point Depression" experiment.
He started the experiment by measuring the mass and freezing point of the pure solvent with minimal error.
Instead of quickly finishing the experiment, he took a lunch break. After returning from lunch, he noted that the solvent had absorbed some impurities from the
atmosphere. He went ahead and performed the rest of the experiment anyway.
Assuming a negligible (very minor) change in the mass of the solvent after absorbing impurities, which of the following choices contains only correct statements:
because of the experimental error, the measured ATwill increase, the measured molality will increase, and the measured molar mass will contain no
additional error
because of the experimental error, the measured ATwill decrease, the measured molality will decrease, and the measured molar mass will decrease
because of the experimental error, the measured ATwill decrease, the measured molality will increase, and the measured molar mass will decrease
because of the experimental error, the measured ATwill decrease, the measured molality will increase, and the measured molar mass will increase
because of the experimental error, the measured ATwill increase, the measured molality will increase, and the measured molar mass will decrease
Nast
9:13 AM
O O O O
Transcribed Image Text:A CHM 126 student performed the "Determination of Molar Mass by Freezing Point Depression" experiment. He started the experiment by measuring the mass and freezing point of the pure solvent with minimal error. Instead of quickly finishing the experiment, he took a lunch break. After returning from lunch, he noted that the solvent had absorbed some impurities from the atmosphere. He went ahead and performed the rest of the experiment anyway. Assuming a negligible (very minor) change in the mass of the solvent after absorbing impurities, which of the following choices contains only correct statements: because of the experimental error, the measured ATwill increase, the measured molality will increase, and the measured molar mass will contain no additional error because of the experimental error, the measured ATwill decrease, the measured molality will decrease, and the measured molar mass will decrease because of the experimental error, the measured ATwill decrease, the measured molality will increase, and the measured molar mass will decrease because of the experimental error, the measured ATwill decrease, the measured molality will increase, and the measured molar mass will increase because of the experimental error, the measured ATwill increase, the measured molality will increase, and the measured molar mass will decrease Nast 9:13 AM O O O O
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