mscore/chemistry/
constants.rspub const MASS_PROTON: f64 = 1.007276466621; pub const MASS_NEUTRON: f64 = 1.00866491595; pub const MASS_ELECTRON: f64 = 0.00054857990946; pub const MASS_WATER: f64 = 18.0105646863; pub const MASS_CO: f64 = 27.994915; pub const MASS_NH3: f64 = 17.026549; pub const STANDARD_TEMPERATURE: f64 = 273.15; pub const STANDARD_PRESSURE: f64 = 1e5; pub const ELEMENTARY_CHARGE: f64 = 1.602176634e-19; pub const K_BOLTZMANN: f64 = 1.380649e-23; pub const AVOGADRO: f64 = 6.02214076e23;