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Which of the following statements about pH is true?
A.The pH scale is a measure of oxygen ion concentration.
B. A single unit change on the pH scale is equivalent to a 1% change in hydrogen ion concentration.
C. An increase in hydrogen ion concentration means a decrease in pH scale units.

Respuesta :

C. An increase in hydrogen ion concentration means a decrease in pH scale units is correct
ayfat23

The true statement about PH, here is

An increase in hydrogen ion concentration means a decrease in pH scale units.

  • pH is a scale can be regarded as scale used in determining the acidity as well as basicity of an aqueous solution.

  • Acidic solutions will have a low pH ranging from (0-6) compare to basic or alkaline solutions which do have high pH ranging from ((8-14) and pH of 7 is neutral.

  • When a solution is acidic it tends to have high hydrogen ion concentration , which mean low pH scale unit ( 0-6).

  • There is inverse relationship between overall concentration of hydrogen ions and  its pH .

Therefore, once the hydrogen ions in a solution is more then hydroxide ions, then it is considered solution is acidic.

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