If $500 \ cm^3$ of hydrogen gas is at a pressure of $760 \ mm$ and a temperature of $300 \ K$,what is the number of moles?
- A$20.3 \times 10^{-2}$
- B$2.03 \times 10^{-2}$
- C$203 \times 10^{-2}$
- DNone
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