Which pair of compounds will form a solution?
A) Benzene (C6H6) and Hexane (C6H14)
B) Na2SO4 and Benzene
C) NaCl and Hexane
Like dissolves like. Which pair contain both molecules that are non polar or both molecules are polar?
Benzene and hexane
Acd
To determine which pair of compounds will form a solution, we need to understand the concept of "like dissolves like." This principle states that substances with similar intermolecular forces are likely to dissolve in each other. In other words, compounds that have similar polarity and molecular structures are more likely to form a solution.
Let's analyze each pair of compounds:
A) Benzene (C6H6) and Hexane (C6H14):
Both benzene and hexane are nonpolar compounds composed of carbon and hydrogen atoms. These molecules have only weak van der Waals forces between them. Since both compounds have similar molecular structures and nonpolar characteristics, they are likely to form a solution with each other.
B) Na2SO4 and Benzene:
Na2SO4 (sodium sulfate) is an ionic compound composed of sodium (Na+) and sulfate (SO4-2) ions. Benzene, on the other hand, is a nonpolar compound, as mentioned earlier. Ionic compounds like Na2SO4 typically have strong ionic forces between their charged ions. In contrast, benzene only has weak intermolecular forces. Therefore, Na2SO4 is not likely to form a solution with benzene, as the interaction between ionic and nonpolar substances is weak.
C) NaCl and Hexane:
NaCl (sodium chloride) is also an ionic compound, consisting of sodium (Na+) and chloride (Cl-) ions. Hexane, like benzene, is a nonpolar compound. As discussed earlier, ionic compounds have strong ionic forces, while nonpolar compounds have weak intermolecular forces. Consequently, NaCl is not likely to form a solution with hexane due to the dissimilarity in their intermolecular forces.
In summary, the pair of compounds that is likely to form a solution is A) Benzene (C6H6) and Hexane (C6H14).