4.5-4.9 Quiz Flashcards
Excess reagent
The reactant that is not fully consumed
Analyte
The unknown solution in the flask during a titration
If a pH meter is used in a titration where is the equivalence point on the graph?
Right at the pH of 7
On a pH meter graph where would the other compound be an excess reactant?
All the space under the equivalence point
Equivalence point in a titration
- Definition
- Indicator that it has been reached
When the analyte is totally consumed by the reacting species in the titrant
- Color change
End point
When the indicator changes color in a titration
Percent yield formula
Actual(experimental) yield/ Theoretical(calculated) yield times 100
Titrant
What is coming out of the burette(typically KMnO4)
Limiting reagent
The reactant that runs out first
Review 4.5 quiz
What should you always start with in a stoichiometry problem?
Start with a balanced equation
How to find limiting reagent in stoichiometry?
Turn both reactants into moles or grams or something and see whichever one has less and that is the limiting reagent but if they are the same look at the coefficients to help you determine as well
How do you read a pH meter graph of a titration?
Drop a vertical line down to discover the volume
Practice stoichiometry problems
4.5 questions
acid- base reaction
Transfer of one or more hydrogen ions between compounds
