rking as a safety inspector finds an unmarked bottle in a lab cabinet. A note on

Question

rking as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cab says the cabinet is used to bottles of acetone, wahydrofuran, carbon tetrachloride, glycerol, and dimethyl sulfoxide 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 0.79 g.cm3 acetone tetrahyd n 0.89 g.cm carbon tetrachloride 1.6 g cm3 1.3 g cm dimethyI sulfoxide .1 gcm glycerol Next, the chemist measures the volume of the unknown liquid as 0.536 L and the mass of the unknown liquid as 477. g late the answer has the correct number of significant Be sure the liquid? If it is possible to identify the liquid, do so glycero

Explanation / Answer

given volume of the sample was 0.536 L
1 L = 1000 cm 3
Thus 0.536 L = 536 cm3

and mass of the sample was 477 g
thus density = mass/volume = 477/536 = 0.88992 gm cm-3

So yes it is possible to identify the liquid
and the liquid is tetrahydrofuran

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