Wonderful job you do. Please, when you finish a titration, do you tap off the remaining acid in the tip of the burette since its not part of the burette calibration. I mean the added burette tip
No! The calibration of the burette typically includes the volume within the entire burette, including the tip. Therefore, any liquid remaining in the tip is part of the total volume dispensed as long as it was initially filled into the burette. You should not tap off or attempt to remove the remaining acid from the tip of the burette after the final reading. The volume that has been read from the burette scale includes the liquid in the tip as part of the burette calibration. Tapping off the remaining liquid would alter the actual volume dispensed, leading to inaccuracies in your titration result
Good morning boss Please 🙏 What re the reagents used in the quantitative analysis between cuso4 and zn(no3)2. Have done it but i want to be sure if am correct 🙏.
If it is volume, answers should be written to 4 significant figure or 2 decimal places such as 20.43 instead of 20.4 because of systematic errors in reading an equipment. If it's any other calculations e.g involving concentration, you limit the significant figure of the final answer to the digit with the fewest significant figure. E.g assuming you want to add 23.456 + 21.1235 + 21.10 = Your final answer should have the same significant figure with the digit with the fewest significant figure (i.e 21.10) Hence, when you add the above to get 65.6795 you should approximate the final answer to 65.78. inorder words you have limited the significant figure in the final answer to the digit in your calculation with the fewest significant figure.
Your methyl orange indicator might be the caused. Try preparing or using a different methyl orange indicator. Watch the video below on how to prepare methyl orange by clicking on the link th-cam.com/video/lKVDzocGHuU/w-d-xo.html
Just watching this boss this is a great work
Weldon sir. Good one
Is it 5ml measuring cylinder or 10ml measuring cylinder
Wonderful job you do.
Please, when you finish a titration, do you tap off the remaining acid in the tip of the burette since its not part of the burette calibration. I mean the added burette tip
No!
The calibration of the burette typically includes the volume within the entire burette, including the tip. Therefore, any liquid remaining in the tip is part of the total volume dispensed as long as it was initially filled into the burette.
You should not tap off or attempt to remove the remaining acid from the tip of the burette after the final reading. The volume that has been read from the burette scale includes the liquid in the tip as part of the burette calibration.
Tapping off the remaining liquid would alter the actual volume dispensed, leading to inaccuracies in your titration result
Good morning boss
Please 🙏 What re the reagents used in the quantitative analysis between cuso4 and zn(no3)2. Have done it but i want to be sure if am correct 🙏.
Do you mean qualitative analysis?
@@ChemEasy_Eko yes sir the qualitative analysis
Good day Sir
During WAEC, we wrote answers in 3 decimal places instead of significant figures. Will it be a problem?
Thanks for your good work
If it is volume, answers should be written to 4 significant figure or 2 decimal places such as 20.43 instead of 20.4 because of systematic errors in reading an equipment.
If it's any other calculations e.g involving concentration, you limit the significant figure of the final answer to the digit with the fewest significant figure.
E.g assuming you want to add
23.456 + 21.1235 + 21.10 =
Your final answer should have the same significant figure with the digit with the fewest significant figure (i.e 21.10)
Hence, when you add the above to get 65.6795 you should approximate the final answer to 65.78. inorder words you have limited the significant figure in the final answer to the digit in your calculation with the fewest significant figure.
And also what could be the reason why I'm having 14. as end point? Should i leave the base to stand for a while??
No, you don't have to
Could be a problem with your reagent or chemicals or method of preparation
@@ChemEasy_Eko i noticed it's from the indicator. I've changed it. Thanks for your response
@preciousogbonna2420 Oh! That's great. You are welcome. Success in advance
Good day
I tried this titration but I didn't get the deep orange colour, the color was the same just lighter
Your methyl orange indicator might be the caused. Try preparing or using a different methyl orange indicator.
Watch the video below on how to prepare methyl orange by clicking on the link
th-cam.com/video/lKVDzocGHuU/w-d-xo.html
Good evening sir weldone sir
Please how many ml is your measuring cylinder used to measure your acid of 3.8
10ml.
But if u have 5ml measuring cylinder I ll advice you use it for more accuracy.
What if I did my titration ND d color does not changed, wat can be wrong with d titration?
So many factors could be responsible for it:
1. Check your indicator
2. Check the solutions concentration
3. Check the purity of the solution
etc