Silver Chromate Formula

The chemical formula for silver chromate is Ag2CrO4. It is a yellowish-white powder that is insoluble in water but soluble in dilute acids.

The formula indicates that each unit of silver chromate contains two silver ions (Ag+) and one chromate ion (CrO4 2-). The chromate ion itself consists of one chromium atom (Cr) bonded to four oxygen atoms (O), with an overall negative charge of 2-.

The compound is primarily used as a pigment, particularly in photography where it is used as a light-sensitive material in black and white film. It is also used as a reagent in chemistry for detecting the presence of chloride ions, as silver chromate reacts with them to form a precipitate of silver chloride.

Overall, the formula of silver chromate represents a specific arrangement of atoms that gives the compound its unique properties and uses.