A chemist working as a safety inspector finds an unmarked bottle in a lab cabine

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 chloroform, ethanolamine, glycerol, pentane, and acetone. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: Next, the chemist measures the volume of the unknown liquid as 0.660 L and the mass of the unknown liquid as 672. g. Calculate the density of the liquid. Round your answer to 3 significant digits. g-cm^-3 Given the data above, is it possible to identify the liquid? yes no If it is possible to identify the liquid, do so. chloroform ethanolamine glycerol pentane acetone

Explanation / Answer

a)
mass = 672 g
volume = 0.660 L = 660 mL = 660 cm^3

density = mass/volume
=672/660
= 1.0 g/cm^3

b)
yes

c)
ethanolamine

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