It is more accurate to report a single value OR a range of values for Ksp?

Answer 1

I don't know that your question has an answer. More accurate than what? How large is the range? How many significant figures? Perhaps if you rephrase the question I will know how to respond.

Answer 2

if calculating molecular weight of unknown by freezing point depression...All of the unknowns in the activity were nonpolar organic molecules with molecular weight= 100-250 g/mol and using around 1g of the unknown. Provide an example of a solvent that could possibly be used for this experiment and provide reasons why it would be a good choice. Provide a solvent that should not be used for this experiment and provide reasons why it would not be a great choice. Other than using around 7g of benzophenone.