...
I
Octanoic
200
237

II
Acetic
123
118

II
n-Hexanoic
218
203

III
Propanoic
142.4
141.1

III
n-Butyric
165.4
163.5


Plot the boiling point as a function of the number of carbons (Formic Acid would be ZERO point).
What is slope of graph?
Is the line linear? USE linear regression analysis for plotting graph!
What is R2?
Use the graph to INTERPOLATE the boiling points of n-pentanoic acid and n-heptanoic acid. How close are you to the actual values?
Use the graph to EXTRAPOLATE the boiling point of n-nonanoic acid. How close are you to the actual value?
What property do these carboxylic acids have that Chapter 3 discusses?