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Fresh milk has a pH of 6. How do you think the pH would change as it became sour.Explain why?
Wiki User
∙ 13y ago
The pH goes lower in sour milk. See Related Links.
Wiki User
∙ 15y ago
As milk becomes sour, its pH decreases. This is because bacteria in the milk ferment lactose into lactic acid, which is an acid that lowers the pH of the milk. The increase in lactic acid content leads to a decrease in pH, making the milk more acidic.
Wiki User
∙ 13y agoThe pH value would decrease - milk turns acidic as it goes sour.
Wiki User
∙ 7y agoIt is about 6.7 (slightly acidic).
Wiki User
∙ 11y agoph8
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