Question

Please explain step by step.

1) Hexadecanol (C₁₆H₃₃OH) has been used to produce monomolecular films in tanks in order to avoid evaporation of water. If the transverse area (surface area) of the alcohol in the densely packed film is 0.20 nm2, how many grams of alcohol are required to cover a lake of about 40000 m²?

2) Benjamin Franklin poured a spoonful of olive oil (4.8 cm³) over a London pond that was 2028.5 m² and observed that it extended over the entire surface of the pond. The olive oil consists mainly of glyceryl trioleate (molecular weight of 885.4 g/mol) with a density of 0.9 g/cm³ at room temperature. Calculate, a) the thickness of the oil film, b) the surface area occupied by one molecule of olive oil, c) the surface concentration of the olive oil at the monolayer.

Answer 1