Presentation Transcript
Acids and Bases :Acids and Bases Investigation Three
Neutralization
During this Investigation we will: :During this Investigation we will: Investigate neutralization
Correlate the pH of a solution.
Investigate what occurs in a chemical reaction when one of two reactants is present in a limiting amount
Recall :Recall Neutralization - is a chemical reaction, also called a water forming reaction, in which an acid and a base react and produce a salt and water(H2O).
Reactant - Starting material in a chemical reaction
Recall :Recall What is the relationship between the pH of a solution and the concentration of H+?
The higher the concentration of H+ in a solution, the more acidic the solution is and the lower the pH will be.
Recall :Recall When the pH is low is the concentration of H+ ions low or high?
The lower the pH the higher the concentration of H+ ions.
Recall :Recall How can the concentration of H+ ions be changed?
The Process of reducing the concentration of a solute in solution is usually done simply by mixing in more solvent - Dilution.
Another way to decrease the concentration of H+ ions is to dissolve both an acid and base in water
Chemicals we will work with: :Chemicals we will work with: HCl-Hydrochloric Acid is an acid
Sodium hydroxide - also known as lye is a base.
Way of expressing the strength of acids and bases. :Way of expressing the strength of acids and bases. Under 7 = acid 7 = neutralOver 7 = base
What do you think will happen to the concentration of H+ when the HCl and NaOH react together? :What do you think will happen to the concentration of H+ when the HCl and NaOH react together? When an acid and base are mixed H+ ions from the acids and OH- ions from the base will react to produce water also
The concentration of H+ ions will decrease.