Chemical Analysis Flashcards
What pH level is neutral?
pH 7
What pH level are acids?
Below pH 7
What pH level are alkalis?
Above pH 7
What is an indicator?
A chemical that changes colour in different pH levels
What numbers does the pH scale go from and to?
1-14
Is strong and weak the same as concentrated and dilute?
No
What is titration?
An analytical technique to determine the concentration of ions in a solution
What equipment is used during the titration technique?
Pipette and buriette
Name 6 different types of indicator
Universal, phenolphthalein, red cabbage, methyl orange, bromothymol blue, pH paper
Why is chemical analysis important?
It monitors our environment to ensure that it remains healthy and safe
What is qualitive analysis?
Determines which chemicals may be in a sample
What is quantitive analysis?
Finds out how much there is of a certain chemical
Examples of qualitative analysis?
Flame testing, chromatography, precipitation
Examples of quantitave analysis?
Titrations, precipitation, gravimetric analysis
What can chromatography be used for?
Food safety and testing drugs
