Why does the pH of laurionite increase as the reaction takes place?

Answer 1

As the reaction produces NaOH (sodium hydroxide) which is an alkali, so as the duration of the reaction increases it produces more sodium hydroxide which makes the pH increase.

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Answer 2

The pH of laurionite increases as the reaction takes place because laurionite is a basic compound that can neutralize acids in the solution, resulting in a higher pH. As the reaction progresses, more basic laurionite is formed, further contributing to the increase in pH.