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

ID: 473845 • Letter: A

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, dimethyl sulfoxide, ethanolamine, acetone, and diethylamine. 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: Next, the chemist measures the volume of the unknown liquid as 997. Cm^3 and the mass of the unknown liquid as 1.26 kg.

Explanation / Answer

Density = Mass / Volume

mass = 1.26 Kg = 1260 g

Volume = 997cm^3 = 997ml

Therefore,the density = 1260g/997ml=1.26g/ml

It is not possible to identify the liquid as the measured density is not matching with any one of the given density information.

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