A chemist was given four unidentified, wate-insoluble cubes and asked to arrange

Question

A chemist was given four unidentified, wate-insoluble cubes and asked to arrange these substances in order of their increasing density. These cubes were labeled A,B,C, and D. As a reference, the chemist was also given the following liquids, whose densities are given below.

chloroform 1.4832
nitromethane 1.1371
water 0.9982
toluene 0.8669

The chemist added one of the four substances to one of the liquids and observed wether the substance floated or sank. Use the following selected observations to arrange the four unknown substances in order of increasing density.

1)substance A sank in chloroform
2)substance B floated in water but sank in toluene
3)substance C sank in water but floated in chloroform and nitromethane
4)substance D sank in nitromethane but did not sink as rapidly as substance A did in nitromethane

Explanation / Answer

A>1.4832
0.8669<B<0.9982
0.9982<C<1.1371
D<1.1371<A
B, C, D, A

1. B (least dense)
2. C
3. D
4. A(most dense)

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