How much heat is required to raise the temperature of 53.5 g of water from its melting point to its boiling point? How much heat is required to raise the temperature of 90.0 g of water from its melting point to its boiling point?
Explain why the melting point of pure phthalic acid is higher than that of pure naphthalene when both have nearly the same weight. What happens in recrystallization of impure acetanilide in Melting point, percent recovery, the appearance?