Question

vocabulary
saturated solution: containing the maximum amount of solute for a given amount of solvent at a constant temperature and pressure
stop and jot

1. how can you tell when an aqueous solution is saturated?

what factors affect dissolution?
a substances rate of dissolution is the speed at which the solute spreads out uniformly into the solvent. we could say it is the rate of dissolving. three main factors affect how fast a solid solute will dissolve in an aqueous solution—temperature, surface area, and agitation.
three main things affect a substances rate of dissolution—temperature, surface area, and agitation.
you may have noticed that warming up a substance speeds up the rate at which a solute dissolves in water. for instance, hot cocoa powder dissolves faster in water if you heat up the water first. this is because temperature affects dissolution rates in an aqueous solution. in the same manner, powdered hummingbird nectar will dissolve more quickly if mixed with warm water than if it is mixed with cooler water. this is not the case with gases mixing with water, however; the solubility of a gas actually decreases as the solvent is warmed.
this has important effects on wildlife living in watery environments near factories. thermal energy in some solutions, like waste from factories, makes the solution release dissolved oxygen more quickly. this decreases the dissolved oxygen available to fish and other underwater animals since the oxygen is released into the atmosphere from the heated water. this is one way that heat and solubility have a direct effect on wildlife.

Explanation:

A saturated solution contains the maximum amount of solute for a given amount of solvent at a constant temperature and pressure. So, when you add more solute to an aqueous solution and it no longer dissolves (the solute remains undissolved at the bottom of the container), the solution is saturated.

Answer:

When you add more solute to an aqueous solution and it no longer dissolves (the solute remains undissolved at the bottom of the container), the solution is saturated.