noz92 Posted December 30, 2004 Posted December 30, 2004 What are some common chemical compositions for materials used very commonly. An example would be water is [math]H_2O[/math], salt is [math]NaCl[/math]. I'm not asking things like carbon dioxide ([math]CO_2[/math]) because that's not used by the average person (besides in breathing and photosynthesis). And obviously not the ones that I said above.
Gilded Posted December 30, 2004 Posted December 30, 2004 C6H12O6 is fructose. And C12H22O11 is table sugar, which is used in it's plain form. Let's see... gasoline's mostly hydrocarbons with 5 to 12 carbon atoms... and C2H5OH or ethyl alcohol is something especially Finns use very commonly. )
Gilded Posted December 30, 2004 Posted December 30, 2004 I prefer the C2H5OH for ethyl alcohol (not that you couldn't figure out the shape of the molecule with C2H6O though).
budullewraagh Posted December 30, 2004 Posted December 30, 2004 CH3CH2CH3, CH3CH2CH2CH3, CH2OH, NaHCO3, NH4HCO3, C20H25N3O, C21H30O2...actually the last 2 not so much... ... CH3COOH, C6H8O7...do you have enough now or should i continue?
Silencer Posted December 30, 2004 Posted December 30, 2004 C10H14N2 (nicotine), C21H30O2 (tetrahydrocannabinols), C9H13N (close to Adderall and Ritalin)
5614 Posted December 30, 2004 Posted December 30, 2004 health and safety message: please do not confuse H2O with H2SO4
budullewraagh Posted December 30, 2004 Posted December 30, 2004 i beat you to thc silencer ;p good call 5614
jdurg Posted December 30, 2004 Posted December 30, 2004 Don't forget NaOCl, H2S (for those who don't know how to cook eggs properly), Mg(OH)2, CaO, etc. etc.
budullewraagh Posted December 30, 2004 Posted December 30, 2004 ack, good call on the NaOCl. add in Ca(OCl)2 as well. dont talk about H2S:\ Mg(OH)2?? for what? CaO? for what? add MgSO4, Na3PO4, NaOH, HCl, H3PO4, Li, MnO2, KOH, H2SO4, PbSO4, Si
budullewraagh Posted December 30, 2004 Posted December 30, 2004 uh yeah people use that all the time. add NH4NO3 and K2O to the list and in some regions NaClO3, KCl, KNO3
5614 Posted December 30, 2004 Posted December 30, 2004 and in some regions NaClO3, KCl, [b']KNO3[/b] rock on KNO3 !!!!
jdurg Posted December 30, 2004 Posted December 30, 2004 Mg(OH)2, also known as 'Milk Of Magnesia'. (Good old fashioned antacid). CaO is also known as lime which is used to adjust the pH of your lawn.
budullewraagh Posted December 30, 2004 Posted December 30, 2004 oh right! forgot about milk of magnesia. good call. ive never seen quicklime actually
5614 Posted December 30, 2004 Posted December 30, 2004 CaO is also known as lime which is used to adjust the pH of your lawn. just to expand, CaO is an alkali which *opposite of acidifies* your soil, it cannot magically vary your lawn it helps it in one direction only on the pH scale. what is the opposite of acidifying something? alkaly-if-iy-ing something?!?
budullewraagh Posted December 30, 2004 Posted December 30, 2004 oh, and with regard to KNO3, i dislike it. too many kewls are all like "OMGZ IZ GONNA MAKE TEH 1337357 P1P3 B0Mb 3V4!" then they blow up their neighbours' cat or something. then there are the numbskulls who are like "DUDE I WANNA MAKE NITRIC ACID," then they never do or they kill themselves in the process. these generally are the people who obsess over organic peroxides and "francium" which doesnt really exist. to all kewls, i have a few words for you: -ethyl perchlorate -cesium -perxenic anhydride -lithium aluminum hydride
MulderMan Posted December 30, 2004 Posted December 30, 2004 uh yeah people use that all the time. twas my poor attempt at humour, although it would be quite funny if these so called kewls got there hands on it!
budullewraagh Posted December 30, 2004 Posted December 30, 2004 yeah no worries. kewls arent into toxins/poisons. theyre all about explosives:\
MulderMan Posted December 30, 2004 Posted December 30, 2004 im more of a expolsives AND science person...
noz92 Posted December 30, 2004 Author Posted December 30, 2004 Could somebody explain to me what the perentheses mean in the something like[math]Mg(OH)_2[/math], for example? Why is the oxegen and hydrogen in the perenteses?
Rakdos Posted December 30, 2004 Posted December 30, 2004 i think it may be so people dont think its MgOH2
Silencer Posted December 31, 2004 Posted December 31, 2004 Mg(OH)2 is a magnesium atom with two hydroxide (OH) groups (so two oxygen and two hydrogen overall). MgOH2 would be a magnesium with one oxygen and two hydrogens. When the letters are in parentheses it means that the subscript is applied to both atoms. When there is no subscript, 1 is implied. Bud, sorry; didn't realize you got THC already since you had the structural formula.
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