A sample of sulfur dioxide ( ) contains molecules. The number of moles of in the sample is:
Options
A
3.0 moles
B
5.0 moles
C
2.0 moles
D
4.0 moles
Answer & Analysis
Answer
B
Analysis
Question Analysis
This question evaluates the student's ability to use Avogadro's number to convert the number of molecules to moles.
Key Concept Explanation
Avogadro's number, , is the number of particles (molecules, atoms, etc.) in one mole of a substance. The formula is used to find the number of moles when the number of particles is known.
Step-by-step Solution
1. Identify the given values: molecules and
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