Returns the molar mass (kg/mol) of a chemical formula.
For example, calling the function with "CF3CH2F" returns 0.102031066 kg/mol.
function CalculateMolarMass input String chemicalFormula = "" "Chemical formula (e.g., 'C6H6'"; output SI.MolarMass molarMass "Molar mass"; end CalculateMolarMass;