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Q1: Well, volume is the reading that you get! Volume of NaOH=28.3ml (if you read it right by following the downward rule!) Q2: Mass of potassium phthalate: 54.71 - 54.07 = 0.64 g n= 0.64/(39.1+1.008*5+12.01*8+16*4)= 3.13388*10^-3 mol Q3: Ratio 1:1 n NaOH=n K phthalate= the above! []= n...

Um, do we have to explain why they use PVC but not HDPE or PS for certain products? I mean PVC is quite good since we can use some additives to change its physical properties slightly but see this, people explain that PVC is hard so it's used for piping but how about PS? It's obviously much more...

You're describing it rather than outlining. Anyway if it costs more marks, we need to write more.

...You'd better know that you can't choose the same text types as those you're studying in class. I plan to choose novels as well but I haven't decided yet. My teacher suggests The Hobbits which is related to The lord of the rings. You can ask your teachers for mmore details...Um, it's a bit...

I think I'll try the 1st one as well... n NaOH: 0.02*0.1=2*10^-3 mol n HCl: 44.3*0.1*10^-3=4.43*10^-3 mol. Na can't be excess because twice n NaOH < HCl which is expected to react with both NH3 to give NH4Cl and some Na salts to give off CO2 or st else. The only way is NH4+ is in excess...

Ouch. I'll try the 2nd one since it looks shorter... Now I'm going to justify that 1.05g precipitate is mostly pure BaSO4. (assuming there's no presence of ions such as Ag or Pb that can lead to the precipitation of AgCl and PbCl2) In the step of dissolving ground fertiliser in de-ionised...

How much does it take? 3 marks? I think: - His choice of pea to carry out is massive vivisection. (reasons include: easy to grow, successive reproduction, up to 7 easily observable characteristics: flower/prod colour, seed shape/colour, height, prod shapes, flowers at the end or in the middle...

It's referred to as waffle and padding by my teacher. It's my reluctant pseudonym as well. I'm seriously crap at essay. OMG.

Gosh is it the decay formula for Maths Ex1? Crap. I haven't touch it.

...You'd better post the question in Industrial chemistry. There's nothing like this in Production of materials and I'm just half way through Chemical Monitoring and Management. Not enough to tell you. hix.

There are a few questions where you need to get examples like but it's quite confusing. I mean, when considering which polymer has the suitable properties to produce certain things, I find their properties are certainly overlapping each other. Should we give just some suggestions that a polymer...

Just grind the cabbage then filter. Boiling it takes heaps of time.

Re: Some orrection needed! 1st question: You're confused. Humphry Davy's definition clearly identifies the basic component of an acid as Hydrogen but not oxygen as Lavoisier's. This is the correction. 2nd question: Common mistake you make in here. According to Bronsted Lowry's definition of...

Hey. I just watched The Diving Bell and the Butterfly. I choose it as a related material as it suits the idea of imaginative journey. (No, we're not focusing on imaginative journey since we study the whole 3 types of journeys) I've got a few notes from my teacher if you want to have a look. It...

Sure, my two tutoring classes are to keep myself highly motivated, otherwise I'd die at school. Of course they are worth it. However, with that many tutoring classes, I have to say you're damn rich, plus your school is damn bad to keep a 'bright' boy like you interested, and your 'good'...

Sometimes those are platitudinous. They hardly gain any of my already lack of motivation. Basically, I just let my work follow the school's schedule. Tho it's boring at times, I find it easier to cope with 'cuz I can always find reasons to procrastinate otherwise. Motivation vs demotivation.

Shipwrecks looks boooooring. I prefer Biochem or Chem of Arts but I'm doing Industrial. We can still change but maybe the majority choose Industrial. A few like Forensic but I'm trying to 'deter' them. lolz

I just finished watching Tomb Raider and now I'm roaming around. lolz. This's shit. I like it. Freedom!

Re: How was your school day? 2008. Oh Com'on, that's not too bad. My Monday and Thurday are each other's copy except for a later start for Monday and I have to stay at school until 3.50 (3.10 is the normal). I don't even have any extra period for Ex2 Maths cuz' the teachers don't have free...

Q. E. D. !