110 Pre-Lab revised Spring 2023 AVOGADRO'S NUMBER The initial volume in a graduated cylinder was 2.21mL. A student added 100 drops of an oleic acid solution to the graduated cylinder and the final volume was 3.43mL. (a) What is the volume of one drop from the dropper? Show full calculation, with units and sig figs. The solution used was 0.50% (by volume) oleic acid. (b) What is the volume of oleic acid contained in one drop? (Remember 0.50%=0.0050 ) Show full calculation, with units and sig figs. One of the above drops was used to create a film with a surface area of 147cm2. Assume the film is a very wide but short cylinder, therefore volume of this film =( surface area) ) (thickness) Note: The film is created by only the oleic acid in the drop, the remainder of the drop is ethanol, which dissolves into the water. Also remember that 1mL=1cm3. (c) Use the volume from 1b and the surface area given to calculate the thickness of the film in cm. Show full calculation, with units and sig figs