Chemistry

Question Analysis
This question tests the student's ability to convert the number of molecules to moles using Avogadro's number.

Key Concept Explanation
Avogadro's number, , is the number of particles (molecules, atoms, etc.) in one mole of a substance.

Step-by-step Solution
1. Identify the given number of molecules: molecules of CO .
2. Use the formula to convert molecules to moles:

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