#teamnosleep

Chemistry SL Paper 3

Hi guys, 

I know we have had separate discussion rooms for Chemistry, but I thought we can talk about Paper 3 specifically here :). How's everyone Paper 3?

Share this post


Link to post
Share on other sites

Posted (edited)

I am higher level, I did Option B, and personally found it quite easy! I didnt sleep the night before just to make sure I knew everything. Though I did find difficulty in answering the question about Thomas' method or something about how to set up the experiment and ensure the reaction mechanism is right. 

Edited by Alex98

Share this post


Link to post
Share on other sites

I did SL chem, option B. I found section B really quite nice, but found Section A Q2 weird and I probably lost quite a few marks there...

Share this post


Link to post
Share on other sites

There is no topic session for HL, so I am writing here. So section A was straightforward although the second question "how to make 1.00dm^3 of sodium hydroxide carefully" question was just confusing. It was only two marks, so I think people wouldn't have found much trouble in section A. I did option B biochem. Whereas paper 3 seemed really tough in speciment with all the really specific details, I think this paper 3 generally focused on the big things like enzymes, hemoglobin. A big disappointed in the fact that they've allocated four marks on writing advantages and disadvantages of biodegradable plastics, but paper 3 was nice. 

Share this post


Link to post
Share on other sites
54 minutes ago, Seung Hun Han said:

There is no topic session for HL, so I am writing here. So section A was straightforward although the second question "how to make 1.00dm^3 of sodium hydroxide carefully" question was just confusing. It was only two marks, so I think people wouldn't have found much trouble in section A. I did option B biochem. Whereas paper 3 seemed really tough in speciment with all the really specific details, I think this paper 3 generally focused on the big things like enzymes, hemoglobin. A big disappointed in the fact that they've allocated four marks on writing advantages and disadvantages of biodegradable plastics, but paper 3 was nice. 

4 marks for advantages and disadvatanges of biodegradable plastics is a lot, especially when a discussion of the advantages and disadvantages is not mentioned in the syllabus.

Share this post


Link to post
Share on other sites
31 minutes ago, Msj Chem said:

4 marks for advantages and disadvatanges of biodegradable plastics is a lot, especially when a discussion of the advantages and disadvantages is not mentioned in the syllabus.

Well said sir. I've used the pearson and oxford book to supplement my knowledge on the option. As far as I know, there are only one advantage and disadvantage mentioned through out those two books. I thought they would probably bring up bioaccumulation and biomagnification but that didn't happen so... 

Share this post


Link to post
Share on other sites

For that question I put: Pros- less carbon footprint, easier to break down with the use of enzymes

                                    Against- Using land to harvest crops for plastic instead of food, Inability to recycle plastics

Share this post


Link to post
Share on other sites

Could any of you give me a run through on the questions that came in Section A Question 1.

Share this post


Link to post
Share on other sites

I did option C energy and found it alright

I was soo happy when there was a question on esterification cos i had studied it all the night before to be sure i knew it perfectly XD

 

1 person likes this

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now