1. Water cannot be used as the solvent for this experiment. For what types of mo

Question

1. Water cannot be used as the solvent for this experiment. For what types of molecular substances - give specific examples - could water be used as a suitable solvent to determine a molecular weight?

2. Can water be used to determine the formula weights of all ionic compounds? What are the limitations, if any?

3. Why does the slope of the mixed solution continue to decrease rather than reaching a plateau like that observed for the pure liquid? Hint: When the solution freezes the solid is pure solvent.

Explanation / Answer

1) For Ionic or polar molecular substaces which dissolves in water when taken as solvent. In these types of molecules water can be used as solvent as it is important for the substance to dissolve into the solvent completely in order to determine their molecular weight.

So water can't be used to determine the formula weights of all ionic compounds.

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