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 KC4H5O6 to moles
grams Be(NO3)2.3H2O to moles
grams U3O8 to moles
grams Pb(IO3)2 to moles
grams Cesium to moles
grams Gallium(III) Oxide to moles
grams Protactinium(V) Iodide to moles
grams Tantalum(V) Fluoride to moles
grams Beryllium Oxide to moles
molar mass of BiONO3
molar mass of Hf(SO4)2
molar mass of EsI2
molar mass of Al2(SO4)3
molar mass of Lithium
molar mass of Tellurous Acid
molar mass of Rhenium(V) Fluoride
molar mass of Samarium(III) Iodide
molar mass of Molybdenum(IV) Chloride