Purpose: Impure benzoic acid will be purified by recrystallization. The success of the procedure
will be assessed by measuring the melting point of the wet and purified solid and then comparing
these results to the melting point of authentic benzoic acid.
SEP 20, 2016
Purpose: A solution of methanol and water will be separated into fractions of differing
compositions. A fractional distillation curve for methanol/water will be constructed and the
CHAPTER 6 FUNDAMENTALS OF CHEMICAL
Electrons and nuclei are continually moving.
But they arrange themselves in ways that optimize the net
attractive forces among the electrons and the nuclei.
Valence electrons participate in chem
CHAPTER 2 - GASES
Molecules in a gas move
freely throughout the entire
volume of a container,
changing direction whenever
they collide with other
molecules or with a wall.
Pressure (p) in a gas it is
caused by molecular
collisions with a contain
l) (12 pfs) Nome lhe following molecules:
fl 2)_ (12 pts) Draw the following molecules:
0) diphenyl e’rher
1-. If 0”
CHAPTER 8 INTERMOLECULAR FORCES
These forces exist within each molecule
They influence the chemical properties of the substance
These forces exist between molecules
l) (1 pts) Answer the following with true (T) or false (F)
a) Blue light has more energy than red light
b) The line spectrum is unique for each element
2) (1 pt) Choose the incorrect statement
by) Bonds between like atoms share electrons equally.