The method used in this experiment is difficult to apply for determining the for

Question

The method used in this experiment is difficult to apply for determining the formula weight of unknown salts in aqueous solutions. Even when accurate freezing point depressions are measured, the results are not always conclusive because there can be an undetermined parameter. Considering the information in the introduction section, what is the best explanation for this difficulty? Salts in aqueous solutions are generally impure. The value of the van't Hoft coefficient of the salt must be known. Salts do not dissolve well in aqueous solutions. Many salts are unstable in aqueous solutions. The freezing point depression constant of water is not accurately known

Explanation / Answer

Many salts are unstable in aqueous solutions and they readily dissociated into ions. so the number of moles of solute particles increases then vant hoff factor increase. Hence with out that we cannot get conclusive results for finding of molecular weight

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