Interpretation: To determine why gasoline does not dissolve in water.
Concept Introduction: Chemical substances known as polar compounds are bound together through polar covalent bonds. The chemical species known as a "polar compound" may be one that has two or even more atoms bound together through covalent bonds which are polar in character due to the uneven sharing of electrons.
Answer to Problem 42A
Because water is a kind of polar molecule and gasoline is a kind of non-polar molecule. It works based on like dissolve the concept. Gasoline being non-polar does not dissolve in water.
Explanation of Solution
Water and gasoline do not mix or dissolve because water is polar whereas gasoline is non-polar. In other words, because there is no attraction between the molecules of gasoline and those of water, gasoline will not dissolve in water.
Chapter 15 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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