Multiple Choice
Which of the following statements is true about the solubility of N_2 (g) in CH_3OH (l)?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which process occurs as an ionic salt completely dissolves in solution?
A
The salt reacts with water to form a covalent compound.
B
The ionic lattice breaks apart and individual ions become surrounded by water molecules.
C
The salt precipitates out of solution as a solid.
D
The salt molecules remain intact and disperse evenly throughout the solution.
Verified step by step guidance1
Understand that an ionic salt is composed of a lattice of positively and negatively charged ions held together by ionic bonds.
Recognize that when an ionic salt dissolves in water, the ionic lattice breaks apart due to the interaction with water molecules.
Know that water molecules are polar and surround the individual ions, stabilizing them in solution through a process called hydration or solvation.
Realize that the salt does not form covalent compounds nor does it remain as intact molecules because ionic compounds do not exist as discrete molecules.
Conclude that the correct process is the breaking apart of the ionic lattice and the individual ions becoming surrounded by water molecules.
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