chemical formla of lactic acid, citric acid, malic acid, tartaric acid, oxalic acid, formic acid, acetic acid, tannic acid, folic acid

Chemical formula for above mentioned acid.
1. Lactic acid : C₃H₆O₃ 
​2. Citric acid : C₆H₈O₇
​3. Malic acid : C₄H₆O₅
4. Tartaric acid : C₄H₆O_6
​5. Oxalic acid : C₂H₂O₄
6. Formic acid : CH₂O₂
7. acetic acid : C₂H₄O₂
8. Tannic acid : C₇₆H₅₂O₄₆
9. Folic acid : C₁₉H₁₉N₇O₆