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What should I know about
What should I know about
solutions and their creation?
solutions and their creation?
Solvation and dissociation are ways covalent and ionic substances dissolve.
Three factors (crushing, stirring, and heating) affect the rate at which a solute dissolves in a solvent.
Solution concentrations can be measured by molarity and percent by mass.
Solute can affect the boiling point and freezing point of a solution.
Solubility curves are graphed to determine the relationship between solubility of solutes and temperature.
video resources
video resources
This video looks at what happens when you dissolve ionic and covalent compounds in water. Ionic compounds break apart into the ions that make them up, a process called dissociation, while covalent compounds only break into the molecules, not the individual atoms.
The complex systems of high school dating and chemical reactions may have more in common than you think. This vidoe explores five rules for speeding up chemical reactions in the lab that might just land you a date to a dance!
This video explains how to interpret and read solubility curves. It discusses saturated, unsaturated, and supersaturated solutions.
This video demonstrates how to graph a solubility curve.
This video explains Boiling Point Elevation (use from 0 to 1:30).
This video explains Freezing Point Depression (use from 0 to 1:00).
Just so We're Clear...
Just so We're Clear...
Dissociation occurs in ionic substances, and solvation occurs in ionic and covalent substances.
A solution contains a solute and solvent.
Three factors increase the rate at which a solid solute dissolves in a solvent: agitation, increased temperature, and increasing the surface area of a solute.
“Like dissolves Like” explains why chemically similar substances dissolve in each other.
Solution concentration can be measured by molarity and percent by mass.
Adding a solute to a solution will increase the boiling point and lower the freezing point. The more ions in a solution, the more the temperature is affected.
Solubility curves show saturation and how the temperature of a solution increases as the amount of a solid in the solution increases. As the temperature of a solution increases, the amount of gas in the solution decreases.
*Increase the rate at which a gas solute dissolves into a solvent by increasing the pressure (Henry's Law) and decreasing the temperature.
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