1.Calculate the "exact" alkalinity (in mg/L as CaCO_3_) of a water containing 120 mg/L of bicarbonate ion and 15 mg/L of carbonate ion if the pH is 9.43. Please show all steps.
2.The water table is lowered from a depth of 10' to a depth of 20' in a deposit of silt. All the silt is saturated, even after the water table is lowered. The silt's water content is 26%. Find the increase in effective vertical stress at a depth of 34' due to lowering the water table.