Retention Time and Molecular Weight (n = 20) Name Retention Time Molecular Weight alpha-pinene 234.50 136. 24 cyclopentene 95. 27 68.12 p-diethyl benzene 284.00 134.22 decane 250.60 142.29 toluene 174.00 92.14 benzene 135.70 78. 11 2-methyl pentane 97. 24 86.18 2,3 dimethylbutane 100.70 86. 18 1,7-octadiene 172. 20 110.20 1, 2, 4-trimethyl benzene 262.70 120.19 2, 3,4-trimethyl pentane 160.98 114.23 ethylcyclohexane 195.07 112.22 limonene 271.50 136.24 methyl cyclohexane 153.57 98. 19 m-diethyl benzene 281.50 134.22 2, 3-dimethyl pentane 131.83 100.20 2, 2-dimethyl butane 89. 34 86. 18 pentane 78.00 72. 15 isooctane 136.90 114.23 hexane 106.00 86. 18 Click here for the Excel Data File (a) Write the fitted regression equation. (Round your answers to 4 decimal places. A negative value should be indicated by a minus sign.) V = X + (b) Calculate R. (Round your answer to 4 decimal places.) R2