what does arsenic weigh
The molecular formula for Arsenic is As. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Arsenic, or 74.9216 grams. Note that rounding errors may occur, so always check the results.Use this page to learn how to convert between moles Arsenic and gram.he formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance.