Solution X is a strong base with a pH of 12. Solution X is mixed with solution Y, and the pH of the resulting mixture is 8. Based on this information, how should solution Y be labeled?

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Chemistry

Lesly

20 April, 13:45

Solution X is a strong base with a pH of 12. Solution X is mixed with solution Y, and the pH of the resulting mixture is 8. Based on this information, how should solution Y be labeled?

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Mira Bush · Answer 1

The strong Base with a pH of 12 is reduced by 4 units upon being added with solution Y. If you added a strong acid to the strong base, all ions are present in the solution, yes? So every OH - is neutralised by every H + for example, meaning the resultant pH should be 7. The resultant pH is only 8 however, so solution Y must be a weak acid only!