Please enable JavaScript.
Coggle requires JavaScript to display documents.
Acid concentration - Coggle Diagram
Acid concentration
Titration Method
Acid-Base Reaction
Strong Base-Weak Acid, preferable
Indicators for when all the acid has reacted
Controlled Factors
Concentration of aqueous Base solution is similar if not identical each time
This ensures the potential error from adding to much Base solution remains the same each time
Amount of aqueous acidic solution
This minimises the impact of any potential random error by making the likelihood of adding too much basic solution the same each time
Indicator used
This ensures the moment when the indicator shows change from acidic to basic is the same each time.
Speed at which the base is added to the acid
This means if slightly too much Base is added it will be the same amount each time, this way one test wont have an extra drop of base while the other has an extra ml
Uncontrolled Factors
Temperatures
Movement
Accuracy of measuring equipment
Required research :
What is the acid in lemon juice?
Citric Acid (C6H8O7)
Weak Base
Theoretical acid concentration of Lemon Juice
.328m/L
Potential Bases
Sodium Carbonate
Weak Base
Potassium Hydroxide
Strong Acid
Potential Indicators
Methyl red
Phenolpthalein
Methyl Orange
pH 8.2-10
Turns pink in base, clear in acid
pH3.2-4.4
pH 4.8 -6