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Most of us are doing lead acid cell because a past HSC question asked about the environmental impacts of a named cell. Dry cell barely has any, and I remember this question being big marks

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The first link has the ANODE and CATHODE wrong.

Sulfur :D Correct! Post questions pls

http://community.boredofstudies.org/17/chemistry/329937/calculation-questions.html

Post some of the hard calculation questions you guys have come across in papers! :D Here's one to start off with - A student carried out an investigation to analyse lawn fertiliser. The student weighed out 1.00 g of fertiliser containing 24.0 % sulfur (S) and dissolved it in water. 100 mL...

ftfy

Quantitative is just AAS. Both metal

<img src="http://latex.codecogs.com/gif.latex?a)&space;(\frac{31}{33})^{3}=&space;0.83(2d.p)&space;\\&space;\\&space;\\&space;c)&space;1-&space;(\frac{31}{33})^{3}=&space;0.17&space;(2&space;d.p)" title="a) (\frac{31}{33})^{3}= 0.83(2d.p) \\ \\ \\ c) 1- (\frac{31}{33})^{3}= 0.17 (2 d.p)" />

All you need to know is - ration of calcium ions to EDTA ions is 1 to 1. All you need to know (for calculation purposes) everything else they give

Your answers are correct plus that fluent writing style you have makes your answers top notch. Legit

Alright State ranker in english, let us feeble english students get some marks in chem :(

All you have to say is a decrease in volume results in an increase in pressure (since inversely proportional). Increase in pressure results in equilbrium shifting to the right (because of 4 to 2 mol ratio of gases) favouring the forward reaction and producing more ammonia (yield)

Thank you :D hahaha I hate when this happens He is going to get 91+ (HSC mark)

I'm worried too! Chem is brutal Yeah i found the paper easy too however it all comes down to marking criteria and how bitchy they want to be.

2 more days! :D

Kurosaki is probably getting happy now.

nahhhhh... I have a feeling the multiple choice, the 8 marker in the core, and the option long response is going to be dodgy

Bump :D