Solutions are homogenous mixtures of two or more substances. As a basis for understanding this concept:
- 6a. Students know the definitions of solute and solvent.
- 6b. Students know how to describe the dissolving process at the molecular level by using the concept of random molecular motion.
- 6c. Students know temperature, pressure, and surface area affect the dissolving process.
- 6d. Students know how to calculate the concentration of a solute in terms of grams per liter, molarity, parts per million, and percent composition.
- 6e. Students know the observable properties of acids, bases, and salt solutions.
- 6f. Students know acids are hydrogen-ion-donating and bases are hydrogen-ion-accepting substances.
- 6g. Students know strong acids and bases fully dissociate and weak acids and bases partially dissociate.
- 6h. Students know how to use the pH scale to characterize acid and base solutions.