Usually, chemical processes require an optimum pH. This is the pH at which the desired chemical conversion gives the maximum yield.
As we can see, the pH of the system is much higher than the optimum pH. We can decrease the pH to the optimum pH of 5.0 by adding an appropriate amount of a base such as NaOH.
Hence, the pH can be brought to 5.0 from 6.5 by adding an appropriate amount of NaOH.
Wanted to write more both there is a problem with the editor. Uranium is formed naturally in the crust of rocks and seawater. Plutonium does not occur in nature. It is found in the biosphere.
