Recent content by eddy11

Re: stuffed up my half yearly exams help! Don't waste time comiserating, just work your ass off from now on, its a wake up call. i had a similar thing with maths, first in 3 unit, 22nd in 2 unit, so i just decided i would work really hard to ace the remaining assessments (i knew i could with...

i worked throughout it, it was handy to have a job as it distracted me from the stress as well as giving me money to socialise more and buy a car. I had less work over the trial and external exam period. I had an anxiety attack at work on the weekend before paper 2 because i was stressing, but...

its C, i initially put B but its painfully obvious its C having realised that i forgot to caculate the [H+] and rather just the number of moles of H+ ions.

i thought it was good, really happy, but happier that HSC is over

describe a test to quantitatively measure turbdity

is oxygen probe a good enough test as apposed to winklers method

whats winklers method of titration, i do shipwrecks and ive never heard of it, and yeah, i think i know most of the stuff now, its in long term memory, im excited, but i have a question: Describe the recent discovery of elements

i want a big haber process question, or one about drinking water

technecium-99m is easily incorporated into a range of biological molecules. This means that it can be incorporated into molecules that are accumulated by specific by organs in the body. Thus, specific organs are able to be imaged . Cobalt-60 is not taken up by organs in the body, thus it cannot...

"do u know an easy way 2 learn solubility rules?" write them over and over and over and over and over and over and over again as for variables and reliability, they're important in a round-a-bout-way because when you repeat the experiment to achieve reliability, those same variables must...

i do an environmental chemist, they work at ORICA on Botany bay and conduct tests to determine the effects of the ORICA plant on the environment around the harbour and advise on the safe disposal of contaminated waste that is potentially hazardous to the environment, as well as investigate...

Flow injection analysis is a technology now beginning to be used by various local water authorities to accurately determine the concentration in ppm (ppb for some ions, but not phosphate) of phosphate ions in the water. It works by injecting a reagent into a water sample, the products then flow...

dunno about calorimetry which measures energy, but colourimetry on the other hand... Eutrophication is the enrichment of a water way with excessive nutrients, namlely phospate and nitrate. The soluble nitrate content of a water sample can be determined instrumentally using a colourimeter...

we should know the structure of cellulose and show its a condensation polymer, dont really need to have a good understanding of glucose's structure

i think only one is generally necessary to know well, just be aware of how the different processes produce different chain lengths affecting properties