Question

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of methyl acetate, glycerol, chloroform, pentane, and ethanolamine. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density methyl acetate 0.93 glycerol chloroform pentane ethanolamine 10 cm Next, the chemist measures the volume of the unknown liquid as 1.258 L and the mass of the unknown liquid as 788 Calculate the density of the liquid. Round your answer to 3 significant digits Given the data above, is it possible to identify the liquid? yes x 5 ? methyl acetate

Answer 1

Volume 1-258 L 3 000 cm 2 58 Cm 2 58 L mass densiy mass volume a/cm3 |0 6268 Yes, the density is close to that ot bentane having dehs 0.639/cm 3 12 58 cm 3