Asubstance with ph 2 is how many times more acidic than a substance with ph 4?
a. 2
b. 10
c. 100

C.

Explanation:

pH =

If pH = 2, then

If pH = 4, then

In consideration of the concentration of is 100 times as massive at pH = 2 than at pH = 4, so the acid is 100 times as puissant at pH = 2 than at pH = 4.

* The pH scale is logarithmic to base 10, so a change in one instrument in pH equals a change in the concentration by a factor of 10

* Hydronium →

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