Pick an appropriate solvent from table to dissolve each of the following substan
ID: 560017 • Letter: P
Question
Pick an appropriate solvent from table to dissolve each of the following substances.
A. motor oil (nonpolar). Express your answer as a chemical formula. If there is more than one answer, separate them by a comma.
B. sugar (polar). Express your answer as a chemical formula. If there is more than one answer, separate them by a comma.
C. lard (nonpolar). Express your answer as a chemical formula. If there is more than one answer, separate them by a comma.
D. potassium chloride (ionic). Express your answer as a chemical formula. If there is more than one answer, separate them by a comma.
Common Polar Solvents Common Nonpolar Solvents water(H2O) hexane
(C6H12) acetone
(CH3COCH3) diethyl ether
(CH3CH2OCH2CH3) methyl alcohol
(CH3OH) toluene
(C7H8)
Explanation / Answer
according to "like dissolve like" principle
polar compounds dissolve in polar solvents
non-polar compounds dissolve in non-polar solvents
A.
motor oil is non-polar compound dissolves in C6H14, C4H10O, C7H8
B.
sugar is polar so dissolves in H2O.
c.
lard is non-polar so dissolves in C6H14, C4H10O, C7H8
d.
KCl is dissolved in water