Firstly, I apologize, but it seems there’s a misunderstanding here. H2Cr5O4 is not the formula of a specific chemical substance, it might be a typing error.
Are you interested in Cr2O3 (Iron(III) oxide), H2SO4 (Sulfuric acid), or K2Cr2O7 (Potassium dichromate)? If that’s the case, I can provide information on any substance you want to learn about.
For each substance, I will introduce its name, English name, atomic mass, atomic weight and molecular structure. Afterwards, I will present its physical and chemical properties, as well as common chemical equations and the processes of lab and industrial synthesis.
Please note that if you are seeking information about a specific chemical substance, make sure that you have provided the correct chemical formula.