Problem $1(9$ points$)$: Soil pore water $($water in the space between soil particles$)$ has an alkalinity

of $1\mathrm{.}2*{10}^{-3}e\frac{q}{L}$ and is in equilibrium with a soil gas where $P_{CO2}=0\mathrm{.}1$atm.

a$.$ Calculate the pH and TOTCO$3($in $mo\frac{l}{L})$ of the pore water

b$.$ Find the equilibrium pH $,$ alkalinity and TOTCO$3$ if this soil water is pumped from

the ground and equilibrates with a standard atmosphere.

$*$For consistency in this problem solution, assume that $H_{CO2}=32$atm$*\frac{1}{m}ol$