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MMLU-Pro / 4077 / An experiment was performed to determine the moles of carbon dioxide gas formed…

Problem

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question

An experiment was performed to determine the moles of carbon dioxide gas formed (collected over water) when an acid reacts with limestone. To do this, a piece of dry limestone was weighed. Then carbon dioxide was collected until the limestone disappeared. The atmospheric pressure was measured at 0.965 atm. The temperature was 295 K. The volume of CO2 was measured to the nearest mL and corrected for the vapor pressure of water. The student continuously got low results from what was expected. Can you suggest why?

category

chemistry

options

  1. Perhaps there was too much acid, which interfered with the results.
  2. The measurement of atmospheric pressure was incorrect.
  3. Carbon dioxide is rather soluble in water.
  4. The temperature might have affected the reaction.
  5. Limestone is Ca(HCO3)2.
  6. The limestone did not fully disappear.
  7. Limestone is never pure CaCO3.
  8. Perhaps there was not enough acid to dissolve all the limestone.
  9. The volume of CO2 was not measured correctly.
  10. The vapor pressure of water was not correctly accounted for.

src

ori_mmlu-high_school_chemistry

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Source and history

upstream_id / Original problem ID
4077
task_id
6414a9ae-1576-54ea-bc6e-15b55b209cd8
task_key
default--test--4077
task_revision_id
1
config / split
default / test

Official source

initial import