Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| equation: | k_{\mathrm{H,pc}} = \frac{p}{c_\mathrm{aq}} | k_{\mathrm{H,cp}} = \frac{c_\mathrm{aq}}{p} | k_{\mathrm{H,px}} = \frac{p}{x} | k_{\mathrm{H,cc}} = \frac{c_{\mathrm{aq}}}{c_{\mathrm{gas}}} |
| --- | --- | --- | --- | --- |
| O 2 | 769.23 | 1.3 × 10−3 | 4.259 × 10 | 3.181 × 10−2 |
| H 2 | 1282.05 | 7.8 × 10−4 | 7.099 × 10 | 1.907 × 10−2 |
| CO 2 | 29.41 | 3.4 × 10−2 | 0.163 × 10 | 0.8317 |
| N 2 | 1639.34 | 6.1 × 10−4 | 9.077 × 10 | 1.492 × 10−2 |
| He | 2702.7 | 3.7 × 10−4 | 14.97 × 10 | 9.051 × 10−3 |
| Ne | 2222.22 | 4.5 × 10−4 | 12.30 × 10 | 1.101 × 10−2 |
| Ar | 714.28 | 1.4 × 10−3 | 3.955 × 10 | 3.425 × 10−2 |
Question:
What is the 'k_{\mathrm{h,cc}} = \frac{c_{\mathrm{aq}}}{c_{\mathrm{gas}}}' of O 2?
Answer:
3.181 × 10−2