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 CO(NH2)2 to moles
grams ZrI4 to moles
grams Zn(IO3)2 to moles
grams S2O to moles
grams Copper to moles
grams Calcium Tungstate to moles
grams Neodymium(II) Telluride to moles
grams Strontium Thiocyanate to moles
grams Ytterbium(II) Fluoride to moles
molar mass of CH3Br
molar mass of OsBr3
molar mass of (OsF5)4
molar mass of SrCO3
molar mass of Iodine
molar mass of Yttrium(III) Nitride
molar mass of Strontium Oxide
molar mass of Yttrium(III) Phosphide
molar mass of Rubidium Hydride