What are the three equations of state and what does the constants represent?
You have can many "equations of state".  What subject are you studying?
Salt = NaCl\nBaking soda = NaHCO3.\n\nSalt is more effectively solvated (has its charges compensated for by water molecules) than baking soda. As such, it is free to neutralize it's charge in water more freely. This is what you see while it dissolves.