Which of the following do you expect to be most water soluble, and why?
Interpretation:
The most soluble compound in water among C10H8 (s), NH2OH (s), C8H8 (l)and CaCO3 (s)needs to be determined.
Concept introduction:
Polarity is a factor which affects for solubility. In most cases, solutes dissolve in solvents which have similar polarity. Therefore, in order to answer this question, polar, moderate polar or nonpolar nature of each compound must be determined.Note that water is a polar solvent.
Answer to Problem 1E
CaCO3 (s)is the most soluble compound in water from the given compounds.
Explanation of Solution
The compound CaCO3 (s) is the only ionic compound among all the given compound.Water is a polar solvent. The dissociation of CaCO3results in the formation ofCa2+and CO32-ions which are stabilized by the alignment of the dipoles of water molecules.
Thus, CaCO3 (s) is the most soluble compound in water.
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Chapter 14 Solutions
GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
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