What is the formula for nitric acid?
HNO3 or N2O5·H2O
Different acids have different formulae. For e.g., the formula for sulfuric acid is H2SO4; the formula for nitric acid is HNO3. But one common thing in all acids is that they always have at least one hydrogen atom in their molecule. Sulfuric acid: H2SO4 Nitric acid: HNO3 Hydrochloric acid: HCL Phosphoric acid: H3PO4