Lemon juice: The pH of lemon juice typically ranges from 2 to 3 due to the presence of citric acid.
Vinegar: Distilled white vinegar usually has a pH level between 2 and 3 because of its acetic acid content.
Certain carbonated beverages: Some sodas, such as cola, have a pH of approximately 3 due to the presence of phosphoric acid.
Hydrochloric acid: This strong acid is found in gastric juices and has a pH of around 1 to 2.
It's important to note that the pH of a substance can vary slightly depending on factors like temperature and concentration.
