to remove excess base after making a soluble salt from an acid and an insoluble base, the solution must be… what?
To remove excess base after making a soluble salt from an acid and an insoluble base, the solution must be titrated with an acid. Titrating involves adding a measured amount of acid to the solution until the excess base is completely neutralized. This process ensures that all the excess base is converted into a soluble salt, which can then be separated from the solution. The titration is typically performed using an indicator or a pH meter to determine the endpoint, where the solution becomes neutral.