This category of measurement units is defined by the "amount of substance" type, which is an SI base quantity.
The SI base unit for amount of substance is the mole.
The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is "mol."
grams C12H6O2 to moles
grams KMnO4 to moles
grams MoI2 to moles
grams ErBr3 to moles
grams Sulfur to moles
grams Copper(II) Carbonate to moles
grams Sodium Percarbonate to moles
grams Radium Iodide to moles
grams Titanium(IV) Sulfide to moles
molar mass of Na3VO4
molar mass of PrN
molar mass of SiH4
molar mass of BiVO4
molar mass of Chromium
molar mass of Barium Thiocyanate
molar mass of Nickel(II) Chloride
molar mass of Ruthenium(IV) Fluoride
molar mass of Calcium Chloride