Edexcel A Level Chemistry (Paper 3)
Study online at https://quizlet.com/_aezt1c
1. what can heat help a solid dissolve
do?
2. why should the volumetric to ensure a uniform concentration
flask be shaken when mak-
ing a standard solution?
3. why is a volumetric pipette smaller uncertainty
more accurate than a mea-
suring cylinder?
4. if the burette isn't rinsed dilute the concentration leading to a larger titre
with the substance that will
be put in it, residual water
might have what effect?
5. what is the problem with small drops of liquid may fall from the funnel leading to a lower
leaving the funnel in the bu- titre volume
rette?
6. why is it okay to rinse with it doesn't add any extra mols of reagents
distilled water in a titration?
7. what can you do to de- decrease sensitivity uncertainty by using a greater resolution or
crease apparatus uncertain- increase the size of the measurement
ties?
8. how would you reduce % make the titre a larger volume by increasing conc and vol of the
uncertainty in a burette? substance in the conical flask or decreasing the conc of the sub-
stance in the burette
9. use a balance that measures to more decimal places
1/4
Study online at https://quizlet.com/_aezt1c
1. what can heat help a solid dissolve
do?
2. why should the volumetric to ensure a uniform concentration
flask be shaken when mak-
ing a standard solution?
3. why is a volumetric pipette smaller uncertainty
more accurate than a mea-
suring cylinder?
4. if the burette isn't rinsed dilute the concentration leading to a larger titre
with the substance that will
be put in it, residual water
might have what effect?
5. what is the problem with small drops of liquid may fall from the funnel leading to a lower
leaving the funnel in the bu- titre volume
rette?
6. why is it okay to rinse with it doesn't add any extra mols of reagents
distilled water in a titration?
7. what can you do to de- decrease sensitivity uncertainty by using a greater resolution or
crease apparatus uncertain- increase the size of the measurement
ties?
8. how would you reduce % make the titre a larger volume by increasing conc and vol of the
uncertainty in a burette? substance in the conical flask or decreasing the conc of the sub-
stance in the burette
9. use a balance that measures to more decimal places
1/4
