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Chemistry Chapter on Solubility

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Questions and Answers

What must occur first for a solute to dissolve in a solvent?

Solvent particles must separate. (correct)
Solute and solvent must mix completely.
The temperature must be increased.
Solute particles must break apart.

What determines whether a solute will dissolve in a solvent?

The mass of the solute and solvent.
The color of the solute.
The strength of attractive forces between solute and solvent particles. (correct)
The volume of the solvent.

When NaCl dissolves in water, what primarily overcomes the attractive forces holding Na+ and Cl- ions in the crystal lattice?

Temperature of the solution.
Pressure applied to the solution.
Attractive forces between water molecules and the ions. (correct)
Viscosity of the water.

What is the general effect of increasing temperature on the solubility of most substances?

<p>Solubility increases. (C)</p> Signup and view all the answers

Which of the following statements about dissolution is incorrect?

<p>All solutes dissolve in solvents when mixed. (C)</p> Signup and view all the answers

Flashcards

Solubility

The ability of a substance (solute) to dissolve in another substance (solvent).

Solute

The substance that dissolves into another substance.

Solvent

The substance that dissolves the solute.

Solution Formation

The process of forming a solution by mixing a solute and a solvent.

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Effect of Temperature on Solubility

Generally, as the temperature increases, the solubility of a substance also increases. However, there are exceptions.