Interview
Chemistry ATP Analysis
- Course
- Institution
Chemistry ATP Analysis by Vasumitra Gajbhiye
[Show more]
Seller
Follow
regipro
Content preview
⚗Chemistry ATP Analysis by
Vasumitra Gajbhiye
How to check if a liquid is water?
Check boiling point = 100 or melting point = 0
Why it is important to immediately put a bung in the conical flask in an experiment
where gas is produced?
minimize gas loss/ escape before bung is replaced
State the advantage of measuring the volume of gas collected every 10 seconds
rather than every 20 seconds
more points / data so
better / smoother graph / curve / line
Why condensers are used?
To cool the vapour. So that the gas condense into a liquid
Which flask is used in distillation?
Distillation/ round bottom flask
How to keep the temperature of a apparatus constant?
Use water bath
How to prevent escape of gas when magnesium is added to sulfuric acid?
partitioned container, suspend magnesium on thread,
If colour of litmus paper is red what is the pH?
1
Why the flask is rinsed with distilled water?
Chemistry ATP Analysis by Vasumitra Gajbhiye 1
, clean it.
remove residue and impurities from previous experiments
What are some errors and improvements in titration experiment?
errors
any two from:
• using measuring cylinder
• missing endpoint / misjudging colour change
• not repeating
improvements
any two from:
• use pipette (in place of measuring cylinder)
• add more slowly
• repeat (and find mean)
Why would carrying out the experiment in a polystyrene cup rather than a boiling
tube
improve the accuracy of the results?
Better insulator so reduce heat loss even more
What is advantage of measuring cylinder?
convenient / easy / quick to use;
What is disadvantage of measuring cylinder?
Inaccurate measurement.
Why should we warm solution containing sodium hydroxide carefully?
sodium hydroxide is hazardous / irritant / caustic;
boiling causes mixture to spit / blow-out;
What will happen if a gas continues to enter a closed conical flask with a liquid
inside it?
Liquid will be pushed out of flask.
Suggest why the experiments were done in a polystyrene cup rather than a glass
beaker.
Polystyrene cup is a insulator, so reduce heat loss.
Chemistry ATP Analysis by Vasumitra Gajbhiye 2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller regipro. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.38. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now