Exam (elaborations)
Breath paper AS Chemistry H032_01 (100%)Verified Solutions 2024.
- Institution
- A+ Depth Chemistry Paper H032_02 Solutions 2024
Breath paper AS Chemistry H032_01 (100%)Verified Solutions 2024.
[Show more]
Seller
Follow
Content preview
Breath paper AS Chemistry H032/01(100%)Verified Solutions 2024
Describe how HCl is removed from the waste gases produced - ANS-HCl gas is passed
through alkali (carbonate)
what do the experimental results tell you about the carbon-halogen bond enthalpies -
ANS-bond enthalpy decreases down group 7
c-cl>c-br>c-i
How could the student modify their experiment so that it could be completed in less time
- ANS-heat test tubes in a water bath
general formula for an alkyl group - ANS-CnH2n+1
Compound H can be prepared in an elimination reaction by heating compound J with an
acid catalyst
A student carries out this preparation using 7.65g of compound J.
The student obtains 2.05g of compound H
write and equation for this reaction using molecular formulae.
calculate percentage yield of compound H
c6h10
c6h12o - ANS-C6H10
72+10=82 mr
mol= 2.05/82=0.025
C6H12O
84+16=100 mr
mol= 7.65/100= 0.0765mol
0.025/0.0765 x100 = 32.7%
Europium reacts with dilute sulphuric acid, forming a solution of europium sulphate and
hydrogen gas
a chemist reacts 0.608g of europium with an excess of H2SO4(aq) and collects 144cm3
of hydrogen gas at room temperature and pressure
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 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 denicetho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.16. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now