School
of Nursing and Academic Division of Midwifery
RLO: Acids, Alkalis and Bases: Further Application: Resources
Resources
| Title/link | Description |
|---|---|
| Acids, Alkalis and Bases: An Introduction | This RLO gently introduces students to the pH scale, the concept of indirect measurement and molecule dissocation into ions. It explains why pure water is netural (ph 7), why acids have a low pH value, and why alkalis and bases have a high pH value. |
Glossary
- Acid - any substance that donates H+ ions; A solution that contains more H+ than OH- ions
- Base - any substance that removes free H+ from a solution
- Alkali - any substance that donates OH- ions into a solution; A solution that contains more OH- than H+ ions.
- pH - The concentration of hydrogen ions (H+) in a solution.
- Acidic - a solution containing excess H+ ions; a solution with a pH less than 7.
- Alkaline - a solution containing fewer H+ than OH- ions; a solution with a pH greater than 7.
- Neutral - a solution where there are exactly the same number of H+ and OH- ions.
- Dissociation - molecules in solution break apart into ions and then re-form again
- Buffer - a molecule that can both accept H+ and donate that H+ ions
- Denaturation - alteration of a molecule's shape and structure leading to loss of function following rearrangement of its atoms.
- Neutralisation - combination of an acid and an alkali to form a salt and water.
- Salt - a molecule formed by the combination of an acid without its free H+ ions and an alkali without its OH- ions.