You have a mixture composed of 90%
benzoic acid and 10% naphthalene. Benzoic
acid has a melting point of 122.4 oC, while
naphthalene has a melting point of 80.2 oC.
You can say with certainty that the melting
point of the mixture will be:
A. greater than any of the two melting points.
B. less than the melting point of naphthalene
C. less than the melting point of benzoic acid
D. halfway between the two melting points
E. cannot be determined without measuring
B.posted by Alphonso