Question: acids are found in the home?
Answer: Acids Found at Home Acetic acid (HC2H3O2) is found in vinegar as well as products that contain vinegar, such as ketchup. Citric acid (H3C6H5O7) is found in citrus fruits. It is also used in jams and jellies and to add a tangy flavor to other foods. Lactic acid (C3H6O3) is found in milk and other dairy products.