Rate of Dissolving LAB

Front

What is the definition of a solvent?

Back

A substance primarily used for dissolving other substances.

Front

What is the definition of a solute?

Back

A substance that is dissolved in a solution.

Front

Identify the solute(s) and solvent(s) in a glass of lemonade.

Back

Solute: Sugar and Lemon juice, Solvent: Water.

Front

Which dissolves faster: a sugar cube or loose, granular sugar?

Back

Loose, granular sugar.

Front

Which dissolves faster: sugar left alone in water or sugar that is stirred in water?

Back

The sugar that was stirred.

Front

What factors affect the rate of dissolving?

Back

Temperature, surface area, stirring, and concentration.

Front

How does temperature affect the rate of dissolving?

Back

Higher temperatures generally increase the rate of dissolving.

Front

What is saturation in a solution?

Back

The point at which no more solute can dissolve in the solvent.

Front

What is a supersaturated solution?

Back

A solution that contains more solute than can normally dissolve at a given temperature.

Front

What is the role of stirring in the dissolving process?

Back

Stirring increases the interaction between solute and solvent, speeding up the dissolving process.