Multiple Choice
Which of the following compounds is expected to be the most soluble in H2O?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following compounds is most likely to dissolve in hexane?
A
CCl_4 (carbon tetrachloride)
B
NaCl (sodium chloride)
C
KNO_3 (potassium nitrate)
D
CH_3OH (methanol)
Verified step by step guidance1
Identify the nature of hexane: hexane is a nonpolar solvent, so it tends to dissolve nonpolar compounds due to 'like dissolves like' principle.
Analyze the polarity of each compound: NaCl and KNO_3 are ionic compounds, which are highly polar and typically dissolve in polar solvents like water, not in nonpolar solvents like hexane.
Consider CH_3OH (methanol): it is a polar molecule with an -OH group capable of hydrogen bonding, so it is more soluble in polar solvents and less likely to dissolve well in hexane.
Examine CCl_4 (carbon tetrachloride): it is a nonpolar molecule because of its symmetrical tetrahedral shape and the similar electronegativities of carbon and chlorine atoms, making it compatible with nonpolar solvents like hexane.
Conclude that CCl_4 is the most likely compound to dissolve in hexane due to its nonpolar nature matching the nonpolar solvent.
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