Question 3(40% of total mark) Geraniol is one of the main compounds in rose oil. 9.50g of rose petal were extracted using steam distillation and collected in 100mL aqueous extract. 20mL of this aqueous extract were shaken with 10mL of hexane. The geraniol concentration was determined to be 59.7mgL1 in the hexane extract using Gas chromatography. a) Which sample preparation technique(s) were used here? (20% of marks) b) What is the geraniol percentage (%w/w) in the original rose petal sample? Show your calculations (including units, dilution factor, if applicable). ( 80% of marks)