Explain why it was important to dissolve the antacid tablet first and then divide the solution into aliquots? what would have been a potential point of concern if you had divided the tablet into aliquots first and then dissolved them into equivalent volumes?

Because then you will get equal aliquots.

Explanation:

If you will try to divide antacid tablet in equal parts which almost impossible and the concentration of reagents may not be equal for the whole of tablet. For solution after complete dissolving this cons will be eliminated

you did not give any options thus this is the best answer i can give to you with this little information you have given

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