CW 7 - CHM 2046 Worksheet 7 Acids and Bases — Concepts...

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Unformatted text preview: CHM 2046 Worksheet 7 Acids and Bases — Concepts and Terms 1- . r - 4—. K Aclds: OLWL H3 0 w“ w . L: ,— Bases. 0/4 1/; LJ git 0‘; A/BReaction: NW“in 4, “30 +— 014 ’ Hub LHLO 1% flu Q. . 9415M denégtafi a . M 4 1- a M. e - Q“ 4L“ Ac'ds: + b6). + 2.0 H {[30 . new?) _ H _ _ ,+ ' Strong ACIdS: Z_ 50L, E «(Qt/(H) gagotw ' e 2.. . c009,:k k c' aid—e1 4 a. . HWOQ ) j 0+ , F-D-r Q¢i \A ‘3 - WeakAclds' I HC’L/ I”; +j;OaIM r P H: ’O , :L __.2 O J HJJDOH/ ;h C 10L! ax w ‘I 3—“ 45a "Hm-(cup) fi’f O pm -I- 1420+ / K0“ .= I! gkhv "2‘ H“ - r" ' I f’OY OdMH-A—c.) £H30+j;|.’3)glolHJ PHI-2(a- Bases: Fmfllflm GLCLchI’wx/s i StiEOIlg—flags: Foym ‘ C, ska-Q m5. 1.. Nay/OLE) '+ H}.O(KL>€-T“"_h SZNae- + QMfiHfiggr‘ 0?wa F0” 0-! M New; [ow] : or1M 17’ M200 Co (HAM MAL OH aufimwf LGWM- - f [mg—n . Wg__lg]§ases: AW“ 1,“; 93%;” DKLO r: NHLf++0HP Kb 5. L g ?\\0 .— _,—)- {W-ZHH'E' Eye 0th NH3, Efijdi’x” I)” (723mm 4%“ HP?“ (“MO A/BReaction: firs; rt, ‘ . O m .4; NW + a “9&4 N3 3. mm when using Bronsted concepts, are properly Mic. (Acids and bases are written W.) Write the NIE for these reactions: (a) HAc(eql.macfis;withMggH(aq)- _ Hflgwfirfi @ OH-Zafl- a 4% {fl 942,0 (b) HCl(aq) reacts with NH3 (aq) I _ r w +ng ":3 NW + H21 \Hi/ 4. Under Bronsted, A & B exist as The conjugate base (CB) of HAO is P‘ C .pj’ The conjugate acid (CB) ofNH3 is N Me Some molecules and ions are amphoteric or amphiprotic, meaning that they can react either as an acid or as a base: )4" x.» HC03' + __OH- —+ C03-2 7+ H20 Laiwa Whig as -. c. A Rack HCO3' + H30+ —> H2CO3 + H20 ’[ (RM; w What else, that we use a lot, is amphoteric? g0 ' l J1 -" Its CA is H7 6 , its CB is @777 5. Writing Net Ionic Equations: Just transfer a proton! ' i it" Why do we prefer to show H+ (aq) as H30+? M “L; J m M0} Java/j mgsi L4” 5‘ EWJCED 6. weak Acid Problem: For 01‘15M HClOz (Ka = 1.1 x 10'2) What are the [...] and pH? ‘ - . M ‘_ K'— q “H I Hero; +HLOUJ —-> {430+ + U%’ T'— : 0.15" O 0 ' I '2“ ' — 155’ C an +yL +31 9:1 «PU-Olin 9'99 {i\ <-- - I /” "V‘- / - 0- 035’ i 33 :5 s 75’ P F’ K x 5; {t/x/O [HC102]= (3-ith [H30+]=[C102-]= 0039/1 pH= We“ 7. Understanding pH — The Mark of Zoro!! ...
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This note was uploaded on 02/14/2012 for the course CHM 2046 taught by Professor Veige/martin during the Spring '07 term at University of Florida.

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CW 7 - CHM 2046 Worksheet 7 Acids and Bases — Concepts...

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