Use the density and molecular weight of limonene, linalool, andnonane to calculate the volumes of the compounds you will need tomake the stock solution of 50 mM.
Also calculate the final concentration of those solutions afterdilution.
Nonane: d = 0.718 g/mL, MW = 128.26, 99% pure
Limonene: d = 0.84 g/mL MW = 136.24, 96% pure
Linalool: d = 0.861 g/mL, MW = 154.25, 97% pure.