Given the following ground-water analysis: (A) Convert all analyses into molal concentrations. (B) Compute ionic strength. (C) Compute the activity coefficient for each ion. (D) Find the activity of...

Given the following ground-water analysis:

(A) Convert all analyses into molal concentrations.

(B) Compute ionic strength.

(C) Compute the activity coefficient for each ion.

(D) Find the activity of each ion.

(E) Convert analyses to meq/L.

(F) Do a cation-anion balance.

(G) Find the


_iap

of anhydrite (CaSO₄).

(H) Compare the

_iap
of anhydrite with the


_sp

of anhydrite (10^4.5).

(I) Find the


_iap

of calcite (CaCO₃).

(J) Compare the


_iap

of calcite with the


_sp

of calcite (10^8.4).