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7 April, 20:10

Carrie is conducting an experiment on a solution. The solution's initial pH is 3.2. Then, as Carrie gradually adds Compound X into the solution, the pH increases to 9.8. Which is the most likely identity of Compound X?

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  1. 7 April, 21:02
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    Answer: The compound X must be a base.

    Explanation:

    pH is the measure of acidity or alkalinity of a solution.

    As we know, the pH scale ranges from 0 to 14, 0 to 6.9 being acidic, 7 being neutral and 7.1 to 14 being basic.

    As the addition of the compound X increases the pH from 3.2 to 9.8 (which is greater than 7), it must be a basic compound. The addition of basic compound first neutralizes the acid and then make it basic.
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