Q$2.18$ ppm of air is dissolved in water at $25$ deg. C$.$ Calculate the Henry's constant of air in water. Pressure

of air is $100$kPa. Remember water is also in equilibrium with its vapor. The saturation pressure of water

can be calculated from Antoine equation:

$ln{P}^{\text{s}\text{a}\text{t}}(kPa)=16\mathrm{.}3872-\frac{3885\mathrm{.}70}{T(deg,C)+230\mathrm{.}17}$

$[10$ points$]$