Solutbility and Dissolving

A set of flashcards regarding solubility and dissolving in chemistry.

What factors does the dissolving rate depend on?

1. Rate of collisions between solvent and solute molecules

2. Temperature

3. Size of solute

4. Stirring

How does temperature relate to dissolving rate?

The higher the temperature, the higher the rate

How does surface area (or size) relate to dissolving rate?

The smaller the solute, the faster it dissolves

Recrystallization

When a dissolved solute becomes a solid again

When the rate of dissolving = rate of recrystallizing, what has been reached?

Solubility

Saturated

When solution has max amount of dissolved solute

Unsaturated

When solution has less than max amount of solute that can be dissolved

What makes solubiltiy change for solid and liquid solutes?

The temperature (which varies wildly for diff substances)

What makes solubility change for gases?

Temperature and pressure

How does pressure relate to solubility of a gas

Solubility of gas in a liquid goes up as partial gas pressure above liquid goes up