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19/07/1991 Cancer Keming Primary 1E 2EE 3A Nan Hua Primary 4F 5G 6G HCI High School Section 1J 2J 3K 4K HCI College Section OG 11 08S63 黄城夜韵2008 - 音响组 (完美升级) 戏剧营2008 - 组长 (玄武) 黄城夜韵2009 - 导督团 (我的爷爷爱吃牛肉面) A2212 T2208 L2103 Archives May 2008 June 2008 July 2008 August 2008 September 2008 October 2008 November 2008 December 2008 January 2009 February 2009 March 2009 April 2009 May 2009 June 2009 July 2009 August 2009 September 2009 October 2009 January 2010 February 2010 March 2010 July 2010 August 2010 September 2010 October 2010 November 2010 December 2010 January 2011 February 2011 Likes being out of camp suitable amounts of training being around the people i like Dislikes getting tekan for no reason :\ rushing to wait, waiting to rush Hopes to commission to ORD soon to live life to its fullest every day People to See PaoPao ShouKee XiaoYao YunHeng YiChen Nic Annie Jason Messages Credits Take a look at this & other blog designs @ Blogskins.com |
Thursday, July 17, 2008 must....resist...temptation to type in [openbrackets]... haha dont want to spoil your eyes with no spacing whatsoever and paragraphing. thanks yuhan and chensi ^^ more calories to add to my collection bwahahaha. word's can't express my gratitude. so i dedicate this short paragraph to chocolate lovers. aw ice cream would melt, wouldn't it? ): and that reminds me my stock of food is getting too much to bear. arrrgh. must not finish it all in one day >.<>.<>.< but anyway, i'll give you a hint here ^^ hope its useful: *slow rate determining step* hydrogen peroxide is responsible for turning KIO3 into I3 (don't ask me how i know or to prove it... i don't know. it just...works. haha) hence, the more hydrogen peroxide you add, the faster the solution changes from colourless to brown to purple. *consuming step* after your I3 has formed a complex with the starch to give a dark blue-black solution, the malonic acid does SOMETHING to make it change back to something else. which isn't I3 so that there isn't a complex formed, and thus the blue black disappears. tada! and this cycle carries on. the KIO3 is reused (i think) so there's really no need to add too much. but the reaction slows down after speeding up halfway through because the malonic acid and hydrogen peroxide gets consumed to form...not hydrogen peroxide and malonic acid ^^ haha i'm not clear on the details but yeah. so technically you go find the ratio yourself through testing (no, there's no free model concentration here. you go find your own ^^) and then you combine it with testing for optimum amount of catalyst and there you have it! you should easily be able to break 15 or more this way. hope it helps ^^ so if it does, buy me a drink (or icecream) (: or tag. and say thank you. hahaha. i have an ego to inflate and arrogance to build! yup. that's about it. and don't go asking for concentrations. (that means you, jason!)[Edit: and tse an too!] where's the fun in that if you didn't do it yourself. haha. and i only broke 20 just for your information. so i'm not all that strong. damn. though i bet i could have done more with additional testing *deceives self once more* haha jy all! its friday tmr! last day of the week~ woohoo! |