Typical choices for the aqueous phase are molar concentration ( c a {\displaystyle c_{\rm {a}}} ), molality ( b {\displaystyle b} ), and molar mixing ratio ( x {\displaystyle x} ).
Pilihan khas untuk fase air adalah konsentrasi molar ( c a {\displaystyle c_{\rm {a}}} ), molalitas ( b {\displaystyle b} ), dan rasio pencampuran molar ( x {\displaystyle x} ).