Add units to support unit conversion for calculations

Units are added to support molecular weight and mEq/L conversions. Units are named with the unit, an underscore, and the chemical species in lower case. Examples are "g_ammonia", "mol_ammonia", and "Eq_ammonia". Species with units are all species inputs for the equil2() function.

Usage

add_units()

Value

NULL, the function is used for its side-effects