Q4.
A chemical is soluble in water but insoluble in benzene. As a consequence, benzene
may be used to determine its density. The density of benzene is 0.879/g/L. Calculate the
density of the sample.
(a) Weight of empty flask
(b) Weight of flask + sample
(c) Weight of flask + sample + benzene to fill
(d) Weight of flask + benzene (without sample)
8.862 +0.002 g
10.986 ± 0.002 g
30.086 +0.002 g
29.172 0.002 g

Calculate the percentage error in the density of the sample.