To find the number of moles, use the formula:
\[
\text{moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}}
\]
Convert 361 mg to grams:
\[
361 \text{ mg} = 0.361 \text{ g}
\]
Now, calculate the moles:
\[
\text{moles} = \frac{0.361 \text{ g}}{175
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