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Tear–free shampoos are advertised as having a pH similar to that of human tears. What pH would you expect tear–free shampoos to be?
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Tear–free shampoos are advertised as having a pH similar to that of human tears. What pH would you expect tear–free shampoos to be?

User MLSC
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2 Answers

1 vote

Answer:

the pH level would be 7

Step-by-step explanation:

User Gunnit
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6 votes

Answer: 7

Step-by-step explanation:

The pH of water, a neutral substance, is 7. Human tears are a saline composed mostly of water. Therefore, it stands to reason that a tear-free shampoo would have a similar pH close to 7.

User Becka
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