Bubbles in buret experimental error

AI Thread Summary
When bubbles are not removed from a buret before a titration, the presence of these bubbles can lead to inaccurate measurements of the titrant volume. If bubbles remain in the buret, they can cause the measured volume of titrant to be higher than the actual volume dispensed, resulting in an overestimation of the analyte concentration and mass. Conversely, if bubbles move down with the titrant, they may not affect the volume measurement as significantly. The discussion highlights the importance of ensuring that bubbles are addressed properly to avoid skewed results in titration experiments.
i_love_science
Messages
80
Reaction score
2
When bubbles are not removed from a buret before a titration, the measured volume of titrant used is more than the actual volume used. Then the analyte concentration will be greater than the actual concentration, and the mass of the analyte will be greater as well.

Instead, it will actually lead to low results. Could anyone explain why, and where my reasoning went wrong? Thanks.
 
Chemistry news on Phys.org
It actually depends on what happens to the bubbles - whether they go up (or stay in place when the titrant levels passes them, which is effectively the same), or go down with the titrant.

I saw them do both.
 
Reply
  • Like
Likes jim mcnamara and symbolipoint

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Thread 'Why does having 8 valence electrons make an element inert?'

I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
View full post »

Thread 'Resists for etching Aluminium with NaOH'

I'm trying to find a cheap DIY method to etch holes of various shapes through 0.3mm Aluminium sheet using 5-10% Sodium Hydroxide. The idea is to apply a resist to the Aluminium then selectively ablate it off using a diode laser cutter and then dissolve away the Aluminium using Sodium Hydroxide. By cheap I mean resists costing say £20 in small quantities. The Internet has suggested various resists to try including... Enamel paint (only survived seconds in the NaOH!) Acrylic paint (only...
View full post »

Similar threads

Titration error affecting the PH of the endpoint
Replies
23
Views
5K
Thinking hard about errors in titration
Replies
2
Views
43K
Can Na2PdCl4 be used as a substitute for PdCl2 in electroless copper plating?
Replies
1
Views
3K
I Concentrated arcs in bubble chamber photos
Replies
2
Views
2K
Error by a factor of 10 in peroxide/permanganate titration
Replies
2
Views
3K
Chemistry Comparing methods of computing pH at equivalence point in titration
Replies
4
Views
1K
Best Method of Analyzing Experimental Percent Error
Replies
2
Views
3K
Uncertainty Error and Significant Figures in this Force Tables Lab
Replies
4
Views
2K
Autocatalytic reaction and S-shaped curve
Replies
6
Views
3K
A couple of questions of acetic acid
Replies
3
Views
4K

Hot Threads

Recent Insights

Back
Top