رد: سؤال في الكيمياء ((كيف؟!))
a solution is prepared by dissolving 516.5 mg of oxalic acid (C2H3O4) to make 100 ml of solution . a 159 ml portion is then diluted to 250 ml > what is the molarity of the final solution ??
what mass of Li3PO4 is needed to prepare 107ml of a solution having a lithium concentration of 0.175 M ?
thanks alote ....
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