A sample of water with volume $200\,\text{cm}^3$ contains dissolved oxygen gas. When this oxygen gas is measured, its volume is $6.00\,\text{cm}^3$ at $1.00 \times 10^5\,\text{Pa}$ and $35^\circ\text{C}$. Calculate the concentration of oxygen gas in the water. (Assume that oxygen behaves as an ideal gas.)
- A$2.34 \times 10^{-4}\,\text{mol dm}^{-3}$
- B$1.17 \times 10^{-3}\,\text{mol dm}^{-3}$
- C$1.25 \times 10^{-3}\,\text{mol dm}^{-3}$
- D$1.03 \times 10^{-2}\,\text{mol dm}^{-2}$