Based on the fact that the acidity of milk increases with time, it means that the pH of sour milk will always be less than 7, the concentration of lactic acid in sour milk can be determined by titration, and the sourer a milk is, the more the acidity and the more the amount of base that would be required to neutralize it.
Acidic substances generally have a pH that is lower than 7.
Sour milk contains lactic acid. The sourer the milk, the more the lactic acid.
The concentration of the lactic acid in sour milks can be determined using the method of acid-base titration.
The more the lactic acid in a milk, the more the amount of base that would be required to neutralize it.
More on food titration can be found here: https://brainly.com/question/2728613
Answer: All 3 options are correct
- The pH of sour milk is less than 7
- To determine the concentration of the lactic acid in sour milk, you could titrate with a base
- The more sour milk is, the more base that will be needed to neutralize it
ARE ALL CORRECT
Explanation:
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