Question

To remove excess base after making a soluble salt from an acid and an insoluble base, the solution must be what?​

Answer 1

Answer:

If the base is insoluble, then an extra step is needed to form a salt. You add the base to the warm acid until no more will dissolve and you have some base left over – this is called an 'excess'. You filter the mixture to remove the excess base, and then evaporate the water in the filtrate to leave the salt behind.

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Answer 2

Answer:

If the base is insoluble, then an extra step is needed to form a salt. You add the base to the warm acid until no more will dissolve and you have some base left over – this is called an 'excess'. You filter the mixture to remove the excess base, and then evaporate the water in the filtrate to leave the salt behind.