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在含Mg~2和Al~(3+)的溶液中加入NaOH溶液直至过量,沉淀量(mol)与加入NaOH溶液的体积(L)之间的关系图,一般作成图一:
The NaOH solution was added to the solution containing Mg~2 and Al~(3+) until the excess, and the relationship between the amount of precipitation (mol) and the volume of NaOH solution added (L) was generally plotted as a graph: