Lab 4: Separation of Benzoic Acid, Naphthalene, and 3-nitroaniline Report Sheet Name Date Section Instructor Original Mixture Mass of original mixture (g) Naphthalene Component Mass of naphthalene recovered (g) % by mass of naphthalene in mixture 3-nitroaniline Component Mass of 3-nitroaniline recovered (g) % by mass of 3-nitroaniline in mixture Benzoic Acid Component Mass of benzoic acid recovered (g) by mass of benzoic acid in mixture Total percent recovery Show All Calculations:

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.