<|system|>
The density of a gaseous compound was found to be $1.23 \mathrm{kg} \mathrm{m}^{-3}$ at $330 \mathrm{K}$ and $20 \mathrm{kPa}$. What is the molar mass of the compound?</s>.
<|user|>
Can you answer based on context?
<|assistant|>
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