GRAPHS & TABLES

18/01/2015 10:53

MOLAR WEIGHT:

Calculating the molar weight:

“In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.” (Convertunits.com, 2015)

Methyl acetate molar weight (C₃H₆O₂):  12.0107*3 + 1.00794*6 + 15.9994*2= 74.07854 g/mol

Ethyl acetate molar weight (C₄H₈O₂): 12.0107*4 + 1.00794*8 + 15.9994*2= 88.10512 g/mol

Propyl acetate molar weight (C₅H₁₀O₂): 12.0107*5 + 1.00794*10 + 15.9994*2= 102.1317 g/mol

Butyl acetate molar weight (C₆H₁₂O₂): 12.0107*6 + 1.00794*12 + 15.9994*2= 116.15828 g/mol

This are the molar mass of substances group 2.

Their structure is: acetates

IMF'S: They have all of the 3

TABLES:

GRAPHS BASE ON TABLE 2:

OBSERVATIONS:

We can see, without any further investigation, that the graphs show us when the substance has a bigger molar weight, it has increased more in the capillary tube except Ethyl acetate compared with Methyl acetate.