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Acids and Bases
Transcript of Acids and Bases
Definition- measurement system used to indicate the concentration of hydrogen ions (H+) in solution:
Sentence: The pH scale ranges from 0-14.
Definition- compound that forms hydrogen ions (H+) in solution.
Sentence- Acids have a pH of 0-6
Defination - compound that produces hydroxide ions (OH-) in solution.
Sentence- Bases have a pH of 8-14
1.Solution: all components are evenly distributed
a. Solute = the substance that is dissolved
b. Solvent = the substance in which the solute dissolves
c. Example: Salt water
2.Suspension: mixtures of water and non-dissolved material
a. Example: blood contains undissolved particles, pudding
3.pH scale: indicates the concentration of H+ ions in solution
a. Ranges from 0-14
b. At pH 7, OH- and H+ ion concentrations are equal
c. Pure water is pH 7 (neutral)
d. pH above 7 is basic (8-14)
e. pH below 7 is acidic (0-6)
a. Weak acids or bases that can react with strong acids and bases to prevent sharp, sudden changes in pH
b. Keeps pH between 6.5 and 7.5
Question of the day: How should a procedure be written?
Objecitve: Students will be able to write, test, and evaluate a procedure.