Practical Flashcards
1
Q
How to do a titration
A
Dissolve solute in solvent up to 250Cm3 (known) and shake Put 25cm3 in flask Add a suitable indicator Add Burette drop by drop Repeat until concordant
Rinse pipette/ Burette with solution used
Wash flask with water
2
Q
Common indicators
A
Methyl orange red in acid to yellow alkali
Phenylphaline pink to colourless
3
Q
Calorimetry
A
Reaction done in polystyrene cup with lid
4
Q
Apparatus uncertainty
A
100 X margin of error/ quantity measured
Then add them up
5
Q
Experimental error
A
Real answer-experimental answer/real answer X100
6
Q
If you experimental error is more than apparatus error what does that mean
A
Inaccurate
