Rate of Dissolving LAB

Front

Is the dissolving of sugar in water a physical change or a chemical change?

Back

Physical change

Front

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

Back

The sugar that was stirred

Front

Which dissolves faster: a sugar cube or an equal amount of loose, granular sugar?

Back

Loose, granular sugar

Front

What is the definition of a solvent?

Back

A substance primarily used for dissolving other substances

Front

Which has more surface area: a sugar cube or an equal amount of loose, granular sugar?

Back

Loose, granular sugar

Front

What factors affect the rate of dissolving?

Back

Temperature, stirring, surface area, and concentration of the solute.

Front

How does temperature affect the rate of dissolving?

Back

Higher temperatures generally increase the rate of dissolving.

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.

Front

Why does loose, granular sugar dissolve faster than a sugar cube?

Back

Loose, granular sugar has a larger surface area exposed to the solvent.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent at a given temperature and pressure.