ࡱ> TVMNOPQRS EHbjbj 4N<<8fL-<4444+-------------$ 02LQ-9Q-44-!!!44+-!+-!![+|,4`f+--0-+ 3]  3$, 3,!Q-Q-!- 3< \: Chemistry 115 Name: Date:  Solutions Show calculation setups and answers for all problems. In both your setup and answer show units and follow rules of significant figures. 1. What will be the percent composition by mass of a solution made by dissolving 28.4 grams of sodium acetate (NaC2H3O2) in 125 mL of water (density 1.00g/ml)?   QUOTE    QUOTE    2. How many grams of sucrose (table sugar), C12H22O11, are needed to prepare 211g of syrup that is 35.0% sucrose? msolution = 211 g m/m% = 35.0 % sucrose msolute = ?   3. How many moles of sodium hydroxide, NaOH, are required to prepare 3.00 L of 0.420 M solution? L NaOH solution ( mol NaOH  4. What will be the molarity of a solution if 4.92 grams of magnesium carbonate (MgCO3) are dissolved in water to make 450.0 mL of solution? g MgCO3 ( mol MgCO3  ( M MgCO3 mL soln. ( L soln  5. What volume of a 0.350 M solution of zinc nitrate, Zn(NO3)2 can be prepared from 6.389 g of zinc nitrate? g Zn(NO3)2 ( mol Zn(NO3)2 ( L Zn(NO3)2 soln.  6. How many milliliters of 2.50 M H2SO4 are needed to prepare 500.0 mL of 0.115 M H2SO4? V1 = ? M1 = 2.50 M H2SO4 V2 = 500.0 mL M2 = 0.115 M  7. How many grams of hydrogen chloride are in 45 mL of concentrated (12 M) HCl? mL HCl soln. ( L HCl soln. ( mol HCl ( g HCl  8. An ethanol solution has a density of 0.8724 g/mL and contains 68.00% ethanol (CH3CH2OH) by mass. What is the molarity of this solution? (Challenge question)   QUOTE   If I leave 750 mL of 0.50 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates, what will the new concentration of the sodium chloride solution be? V1 = 750 mL M1 = 0.50 M NaCl V2 = 750 mL 150 mL = 600 mL M2 = ?  Use the equation below to solve the following problems 2 HBr(aq) + Zn(s) ZnBr2(aq) + H2(g) How many milliliters of 0.2493 M HBr would be required to completely react with 25.00 grams of elemental zinc? g Zn ( mol Zn ( mol HBr ( L HBr soln. ( mL HBr soln.  b. How many moles of hydrogen gas will be produced by the reaction of 500.0 mL of 0.4418 M HBr and 35.00 g of elemental zinc? mL HBr soln. ( L HBr soln. ( mol HBr ( mol H2  smaller value ( mol H2 g Zn ( mol Zn ( mol H2   Since 0.1105 mol H2 < 0.5353 mol H2, hydrobromic acid is the limiting reactant and 0.110 mol hydrogen gas is produced. Oxalic acid H2C2O4 is a toxic substance found in spinach leaves The acid can be neutralized by the addition of base H2C2O4 + 2 KOH ( K2C2O4 + 2 H2O What is the molarity of a solution made by dissolving 12.0 g of oxalic acid enough water to make 400 ml of solution? g H2C2O4 ( mol H2C2O4  ( M H2C2O4 mL soln. ( L soln  How many ml of 0.230 M KOH would you need to titrate 25 ml of the oxalic acid solution? mL H2C2O4 soln. ( mmol H2C2O4 (m mol KOH ( mL KOH soln.  QUOTE   Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling some sodium bicarbonate on to the sulfuric acid. The reaction produces sodium sulfate, carbon dioxide and water. H2SO4 (aq) + 2 NaHCO3 (s) ( Na2SO4 (aq) + 2 CO2 (g) + 2 H2O (l) If 35 ml of 6.0 M sulfuric acid is spilled and 50 grams of sodium bicarbonate is added, what is the mass of carbon dioxide gas (g) that is produced? mL H2SO4 soln. ( L H2SO4 soln. ( mol H2SO4 ( mol CO2 ( g CO2  smaller value( g CO2 g NaHCO3 ( mol NaHCO3 ( mol CO2 ( g CO2  QUOTE    QUOTE   Since 18 g CO2 < 26 g CO2, sulfuric acid is the limiting reactant and 18 g CO2 is produced. How many oxygen atoms are in the carbon dioxide produced? g CO2 ( mol CO2 ( mol O ( atom O  What is the limiting reagent and how much reactant remains unreacted? Sulfuric acid is the limiting reactant and there is 0.00 mL left at the end of the reaction. Sodium bicarbonate is the excess reactant, so    QUOTE   are left at the end of the reaction. 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UL[K7ӂJ1^.MsNeKg;cӶ'Sqjf2SpQ-MƏT*#+; j^C&ŔzυBDW O'dL_ @N!NRui^A(Al#BUɔ>ӹ+Jy7:9oG 2uMrMo"!}',&1(^zؼUvrOSu6 1Z׶~'K\*stD!?Ob(S`\m匧:LUerf* L%go!3 S_,eKH2ӡ\o/ _yb닸>RW6{+9PT'Ó Q88Peoˁ~o2M t-( ǥ"KHA5J*qe#pTP~fW`Ve# > (,y+Pᴂ3F搤׌尭*gc8Ʋ=шGݢP94᳢ɜLƮ<7< N =hDmٍg~υ,)+^Ru6ݦ</P4OuTjzpoZUuG \Lm ^ [Aw0d){P3I.rq8MZE~<# {V//nS(TvQ/'߾Y #l:*­=w^.RrF{hӆICWI.>y-pf%), M49r$6dP+ϗL񏢄US[rEݰZy}:r>} -9o-9fD%cآ"EԈ-#JtdRIIFN-pjqFBA; vPˆ7@irjxmRi C 6~X\BrT [mPx.ىO-7U۹dPd'7s\J$'/xbaB~;o )`>1Y14W&kDz$.FK^LF%7xN8מ #5GeZJ7$TD\7:soyr% [@hB5Sr3_%4I-F 3ēb9ͯëXP"DAs=Ye<" .^V xSdiD=R^B}.(C [Ё^|n/ _.CD)۰[Ǧ5]?[F4FGugJA }h=7g V@jKm")6B`9.?l7=ض"9%Ә.QZ_zG))*5E(E0d7*-UBFPt=mMRYMGx).׶ZFk[}IH"򅨳KQ~i%U@YH{탼F}rtP9Cҭc@v (6;yXˆt4LU@csR/Il  ndu@Aԗ$„R׹4kR%[&Bu&6g I+i*FQZ̳se3?M:d]']\;_Qfً\ؤx!<,d9>2̭$@W|@TDpQ*Is?5x7mIENDB`Dd    3 A"s m 123.00 L NaOH soln. ×0.420 mol NaOH1 L NaOH soln.=1.26 mol NaOHb ])C5.rƶc !n])C5.rƶc PNG  IHDRc!G]esRGB pHYs+IDATx^]k: fr+93'3S5B(i6!! O# KQL1-6i0sƕ`㙌.$\1vkDžqh䱊 c8uMӝsӘ3ui/uݺCJAe[~q_ԜqɳF$ R$FwkU=vg:]lB˴I  Ld p<\D:qlvgٵm3MiP;z֍GW^H@@]4߱ٵpk(25t aobq觶?fd'/CD+b)64եvgmF+vU;F ~7?g9whw: 8uS?;Tq=`yS-=/h"Q.mzR;ŹXך/mڛn-Rlk>n~5I7}8Iӻ% n=4b 8cWPO4qf nEq0{uJ di~$C Hp7ߛrKh'h?~ͥ6UW!AG~%g<.(R F:p[ .IENDB`?/Dd +    3 A"^ X 124.92 g MgCO3×1 mol MgCO384.31 g MgCO3= 0.0584 mol MgCO3450.0 mL soln.×1000 mL1 L=0.130 M MgCO3 bO56x+-!n#56xPNG  IHDR %sRGB pHYs+ IDATx^[*(srN;i39˙t;s'H4)jDEďFqOkf 6Nu{N<.B2GF?%X+;[u6}VK0s}_c iGRa#{qio? gx7CN15юe}=Epii6֧Vt$ۓpq<Dw6TΟ])=k~:ƃiڮg6 ?rV!qRη50ٞL QmG.hLB g\RΟK)L~ *)Sq-hu3^\[:|oO Eq=9i۾;_Gߞ{罻_77=ԧk噘u]Ӷ'Զk. 1_g5߿izf`RΟK{WgwMT"f>c Ӫ_/hnk`?o'h>;х6<=S_耾4+tbYi]2lb7qeL* e[{̚)R^ĊGv)9j10Kp`Z|٭uog9`}땓mkCH{ /wCn0??7u"dƾ$>-}Rl;vU  C%+P$(3󤮡Qa7lyÀL `}rR{0F}ޱs|8CD$u?%ӡkuj g|m&vs"$>QКHR9Ծ7DuJ|۳ߠ6Pk@ C0:[wV{) M'`w,LP @?Og`I-X3P GtvHF9ԾuyZ'jFA^́+D~xEBl6ϒ$3A}nA:<|gʨ]&8÷[xw *.CxTWpdeQZx$<Ӟ[ʢٗ  Dцt!q$4b)dLR9XÙa싧àn]GHhضU~ߒwNoK+&cJo$n;+hT%ה  jwy3Z9YęqKjʆSl3DɔesXGzˑec7qSfd[QSa\jrvBVt=y SvhU ݕ[CުY,b?+>ėj$}p{)9 &M̺q%I\ʂ(]HXa( yNLh{q[X rҨ y#桢COggMw̴NˤHțP3 O8;y`4?tFT#9ET璅:[ŵF](ȎW0^)%&mI!U߷sC1~f=M1(Nwz SWLt>⃠Ճשd3cԩṅ#`ݞ豷i<:DmTp;(D)7 h 94 H *n\/5O2B3M`F`.8a1zHw^'FȠ b sIiYg`2@4xhe?* $F&ruh'D %"u9=+OR6'Vke9OO})GN&Sx nv'o*Xb*?^| C!1$g ?>Ǟ910<PnW}H(EG')9( Bz45 ȧ[#@Z]?\`- .?- 痱#@k@P10%\1nUHU&1 "u/9M])odPق숽={#7bŁd UZŝAplg$ 910A6ݪ+*/3TDIsP|x~GMW> yx/r3jio4:y<g} ve+!"SmJ$W\Bh4~+`>H5 p7`0%:tRlt94{۔IwmC2 #FPȟ:+fLed@c}N8Cy)(A-t 126.389 g Zn(NO3)2×1 mol Zn(NO3)2189.40 g Zn(NO3)2×1 L Zn(NO3)2 soln.0.350 mol Zn(NO3)2=0.0964 L Zn(NO3)2 soln. b QȟG /R- ]!n QȟG /R-PNG  IHDR !ؕsRGB pHYs+ =IDATx^]k* YΩr=Q37 Pb|$~T*@} 0CѾ ɯ!~'Qe( "Cɿ`K/@'[xo93 Z=DloaNmtu[w 4lN4sl]4fnlTP.ddLaTrGB9Rg߹)Y:w@3tC o]w#ՉE@*h20w#Z/:U;09g^JrT/bQ~QQ%?д'~|q_p S]L d1C< _ ]дu`'CzssCL$;gS•abCdСg1_h?V)Gn#& o7x@!MBESI 7=1ӳ8\a:ɐ g;S T ȋ@z<ۿZwVY cV΁5ymV?k"nCj"@IM*Z$-܂N }nאrv̴)hʻFj]GY @8v]{юsIm脥M_b4 OEVp^(eUq ʊzۈEeス9?%^NjJys؜ nq;a}h"|>R,A`\^%kj !\NhoB*U^ LjpteF!*Y87C|fG! Z&=MƜLKrA`'=?a?t*l]F?ژ#("bUCjJ FQ:ۆḽ[ Hcq@QtX?g"S"VWhyUϫ20ֲ];7@2l>L{?xNACD2~7ݱvh 4Y1ilm![W[Lc'VVw]GYw>՟e9hJ5DK:r v=֌r+ 3_q-iS#305"dbLF#'?8DsCeχ#?8پuQ3V>UZԈnD (mxL JYB`wp't6լeMղSOAk6ŹCؿdX&ӏ;!`q/ȹ^`=\zp& EIMz߳, Ivkg}R蔊o<p(X U"hJg3yʱE竆{u懴XIm0V 0E_Y!K0!E7sϼ%loqa(IKd.1%6/ sN{wxlj~$ -zhLJfV?H۔_!.Sb1?drJ|釤=v-)eT h :jg7,>:˕T?/@@-Yk.:gZ\tkEd]+7wC7d Y׫w#ͩdM=)`[ 6mژo5x(5ML*ֈם%ñ9=е+8e] LR\шH\{ GuOD&r[MCPpʕZaĸ}?5iǨYf) Vw͉Aa[\E(/$!ٛTP)d8R~1tӿs$sV2\ hi%|ѴFJ/8Ɛzr/RZoA*x5ڑ=(UTsI]IlpH ;: o1#ު)dN" D#r1^>" ¸E|B>I =yo+9;0LO/IWUDZ~"<}ʋJx:*eʗN<82`EqVřqx~z\EUplxyrT=. 5K>vP[,nm ̩ 48Rq: o2هRt^s/T{|TR`bC ]j ae  12M1V1=M2V2V1=V2M2M1=500.0 mL0.115 M2.50 M=23.0 mL  bF \ e1" !n \ e1PNG  IHDRw!|sRGB pHYs+IDATx^]Qb* o9rtN_ AQܩ19#ȟ@F`?DӔU#wu>a|62A@#BՆgz~Br sX-zjF5 yONA51-?'gs0<G4׌/4{I|6E_ #hBVWi VU\N*$]w;7vG2Bpg6#ۂ}a,<.\l;O*w: xQfud-)3(YX l )+g%Vf Z1an_%ի.j4G$xQf3ESVOk[gk+.RVG1I޹;r;t(4( !Z0X2Y:J-zhLK1 VUn9P;4\]6*q[#G7ϻNW@ޢ# d 2zIhT%AYu39.^w6PboqNY-yKwjZU>[uquX=vkv=t V{p`;U@\#sNFWT5WJӑZkFKdYaWPWѓ M^1:Z=!|?3 XcmZ~ZꞠmk&Q&V}5ŵJG̏yA=]<>kWU]jQ~Y:(( lsDGal̔KA:3}BŶV{,bX؉4M0;O7gB&+Pr=_+[ {W3"MPKH;z~Lwi׾6h˽Og~>DHFGt~S/VI(bntPB:M"L3vE( ~u ؤ wG#KZSaHg>yd`vp7#ף ?(jк)تլ-_t@8@hk1@M-]!p'Z!;Ǔ zf/Ie>@_Cqr=CpX0ލ[}S3)+qT iLu5i4]y <A4!p~?&ڋXGF2jJb"KG ֘bl0q fbDR?>x ɛp~3U:\&}dY=byT""Ӌ4goT lM4Jgdw (pthԞt_-ޑ'b;\v/мOiy )nEzUK7 0bepLaj}O{Y \aUh 4)- 붘72Ja5e'\fΝ|#Ejj߿CF(>\dO[Fe M26G~ ʣ*`zKl7ⱛtDhSg.ٱy<:5D4;)\tAvܴ^,pfSA t݄ 1245 mL HCl DZ.×1 L1000 mL×12 mol HCl1 L HCl soln.×36.46 g HCl1 mol HCl=20 g HCl b C{QOP#W7!"H l!n C{QOP#W7!"HPNG  IHDR!:hsRGB pHYs+ mIDATx^]mb<vdY49uo6ݼʟ ש:@G@Bg#trtyر1uS*t:*-ǗxKG#Cp1eԚaGj*ǁ!q1q}8{\O KOo0I3S=Mb{5`G˻@jMCjFbOTv%w㣞&5Tt~ ?ԞW;;Zk>Z5^1  q5rv܁y?ֲ !0 @rM2 g)/G(. kڕV pQX$ǁ Z5-Z 0hj=M ޫp}4h !"1>V$?G&'8 ?] *߽Dg4#Vd_ٴ#Ʃ Q@)NHuHB82@=l#0c+J`mOE:l2ވ"*Z%$0s`x1.Tt+[%r\֠U[jt lS.ɃT9זv9.r딮/ Sk][6z+Ty\`M "ʫs'xvKf~$4(0:bxcǁh1ϪgoE,L )&(^J00 lK8O5|!ٺ;Bl%lraJc=IYǂhW-4j~?F*XG#)+ĕMYx%fN49lW0f sJC0|]P⽖L| 9IuIn7at1yw]]^#p,HxCsXМqa6N TYH1թf 57 rUdY;D(r{hh,l~*tyb|\*=Zx+rQS2;Ct~F  QX; 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jXs\"G+"#vgZ3u_cH\QoMwp#B*% UDGd? ~hTN;z%~_<5W2ȌSzJgS7?i{ { C۪œ  U fqVlFAQ<;֐N#pWV^f x, DdB*;YH]"@@(hRO~_[T7͓-|*2I6Zky sYafL]Zn .K?G^>.ѥvD}t~]g E8vhQ3aleOV~ml=rKH^b.8o}w+}u}5(8 wtySQoNJj)Mf!7y~,܂YTSvh#uN]DYڃumG~vxŬb:+yD9j(~;*L/@ܢ#B!gUDo"&?Ms\]p]tuRD^'{ Zozm%0 `tvT `GVw\6Sbb;ﵹLKR~r6^7}A,P:x&:AqIɮ!;WsY:T7rv(] lWMs? 1268.00 g CH3CH2OH 100.00 g soln×1 mol CH3CH2OH46.08 g CH3CH2OH×0.8724 g soln1 mL soln×1000 mL1 L=12.87 M CH3CH2OHb} @mY .!nQ @mPNG  IHDR>sRGB pHYs+ IDATx^]mb, w;N8B›ڊZ!!B߮= @C!Z3OoF~NƘ&#%C׼Eg֎f̗.FoL˯S k_ל/c Ҙ~4" 7P1;$tT(A*zG!3uMϥ7_~h& 2J(V):h a m yEUu}.f5h;$:ePZ%Z"e3di%03PN7,혎 X+|]WޗDкTpDy:lh"w!Cp @r ώ j(ԣɄugG1 ml Ӿrdg AXOuY k܍at8Gw|toioݞsONLl26xȩ9vEzY^)d%rb"X(r7E2c@gm+Ƣ!\% -ʡV3 +ut1?Ea9œ";տ>sG{q,鯮x8Or>^/,41Dz*$1{t"Kf'LZ} N)E{}180w5sN"#~hD?L&daOdDǢ m۝j}aK4r_l? #F۹k l_a+AJraS}Aws[%u#Kq7J&XwH!,>( IBEz/[m$ ioQsKO荛=1)K.k~iT0)&@[ +"UHq8+ĤK.QeןL]nE{z;LČe}k%K 3x mt'ewƾ"t]^.מU4\oԬ_{ඕդg|\ h*KEѢk;pkЪjQ~%b9uF:F\ڡp\C`1h d}Uf[Z醑I.Ż1Qh"X-n;@*,ʱ~Aa5XX +َTB} x2S\<4a[V$^z:h¹=ܔF%^ȸmڹ!.kfgl1pY-B;CRI7͸x[Z4*&gOS zd<SY>?&sX"&XSم&/A|s$z~%STO%cww(e"ve.6+s?*QP44vuӖ0Lg*[hcmg^Mk@P'h_ҊE(1!e Q`"ϩ|8*P@B‘d lŒ V%:~yV̩XpL/y D,p"8G_ ;X,P51p9S+Ҋ3sXN[OUeMR(Ͻe_ WU#zj{9gӵ _u) >,˸(=V2ܞjqϸ7<)e1 Ȯ XpsA6-03nLdʒ{ m@!u~'cPǹƮx w  1268.00 g CH3CH2OH 100.00 g soln×1 mol CH3CH2OH46.08 g CH3CH2OH×0.8724 g soln1 mL soln×1000 mL1 L=12.87 M CH3CH2OHb} @mY fJ!nQ @mPNG  IHDR>sRGB pHYs+ IDATx^]mb, w;N8B›ڊZ!!B߮= @C!Z3OoF~NƘ&#%C׼Eg֎f̗.FoL˯S k_ל/c Ҙ~4" 7P1;$tT(A*zG!3uMϥ7_~h& 2J(V):h a m yEUu}.f5h;$:ePZ%Z"e3di%03PN7,혎 X+|]WޗDкTpDy:lh"w!Cp @r ώ j(ԣɄugG1 ml Ӿrdg AXOuY k܍at8Gw|toioݞsONLl26xȩ9vEzY^)d%rb"X(r7E2c@gm+Ƣ!\% -ʡV3 +ut1?Ea9œ";տ>sG{q,鯮x8Or>^/,41Dz*$1{t"Kf'LZ} N)E{}180w5sN"#~hD?L&daOdDǢ m۝j}aK4r_l? #F۹k l_a+AJraS}Aws[%u#Kq7J&XwH!,>( IBEz/[m$ ioQsKO荛=1)K.k~iT0)&@[ +"UHq8+ĤK.QeןL]nE{z;LČe}k%K 3x mt'ewƾ"t]^.מU4\oԬ_{ඕդg|\ h*KEѢk;pkЪjQ~%b9uF:F\ڡp\C`1h d}Uf[Z醑I.Ż1Qh"X-n;@*,ʱ~Aa5XX +َTB} x2S\<4a[V$^z:h¹=ܔF%^ȸmڹ!.kfgl1pY-B;CRI7͸x[Z4*&gOS 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MX4a|5+DU<;W1{Q~ʜ󓵕߬n}usj|W?ch6f`ZO=b&uDu@3b<”Sw2?&r)&"'#49]ͼ&"[Ǽz Mpydob`s"y:!Z!׵"ħD!YO;>:P$5ΒzE`_BcLFHTJ;M9*&_XiM\-؆_Hّ ںW=Duɰbd_|?2r) kF҃oo'7sө|'vŴ^((U1Rm3Qtp dzSs`[p!\ [uZ;/s *謋b5zd.e(X*j_,4wfȀLgȁ_9g8~&{l|@]ma[d1\"S.s_Q,u1*72>숈ڻ.ܳ?차nټCʢ?4Bԍ/ޗQ(ΰ䄷H嶹<].6IIENDB` Dd   3 A"S M 1225.00 g Zn ×1 mol Zn65.38 g Zn×1 L HBr soln.0.2493 mol HBr×1000 mL1 L=3068 mLb /<YN !n /<YNPNG  IHDR$W sRGB pHYs+ zIDATx^][b( ug9I3]NL}Sg;HBW %Я@G#L>/+-56\~}ZФT\bKId(3DShZga@vLH6Čž[ Eׯ<c'>zUjԌ:tKmpEǥfV?a..#fTݚmž[(źWx?W/=0c\,Kv^˭A+s qp>ZBp\vR}ʰX i׷qޭњPb-{b }7y2)ѮwO39T忾}ZSn޻t.!Ϯɳi^# ¡uwF$!X\a"Ftm;/-mYȹ LCMJ!=5^??QlQ+)Ɨit5&5Z)gpj؛5c.38ӟWBW4+C24t9R0>5㜱;𡩹r9U<\n2j.y=h,v\ƍ1TrFq:-*>&2ሄ k-XO^Eǧ8 ')ouG UB GrW.zCKaպr.9X~ͽ*MEhBs T~H[QZcɪ+ʱqv 6=?g|KZ֪<)ӕl2-" Md P1Cya?1{"Rwk:Ǫiȧ}zpRiפ0yK>Ǹr`3JXlZv~n:v+nbI7BƠvD.6da!qߍMm6Uܚn|r}wUkX9tKgr!EfKWfԲߖD]} A+P] xC.CɃ*>{|j,O/JJTmBqJ=[G#8 .NcY&B0Ti;R2aJv {9ɜQoh ~[њ;lC'A!GR pJᣝOYeeF[iV6!'x)y|Ux[%&Tqi{̂,,Evz[M'4sqk"qJ\ChzW3sQۼYH"Ebtrrh R)a- ^Ύ*v-P8hR5_6KiAUc+GQ[:D|z9TwF5f/e?.Ժ 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`4Koy=j,wr ZRīhVT!.$KJzDILDY0:5}]$fUd@@6EJAN1)f^Db7ŭ+m@0@Hs*%;F?\3#0[2~dI?AQVJa)iJ Dfd7+@dؽU0h8ccY23E2qd'\i<>r)<0Jn\9ND8 PA&ϓVD8AfDX>޳ҖRqʦ$!Ұp#Ӏ2(1׷鰒f9/8HʔA4>"F-dݺJ g, B@72K2:S+ZTq8kVz*ܕ)(LO9HɌxԶL6 Rn.B wݓk7xƆlŲDXPk l A6ʃ9As 3KDĒMČE?F@%;P~2Fq V$%3=SZrH>QeQM>Wi YuHdOSb;kh ^ɝ`sƹIP5?ا&f#9?p a(Պ7lKigz̩vvǥEg,1=i&CmLwTZ(Ts9\ Vf$|g"~!{9R!]a)](Gjf9V*S89A C6T!(,ny"Lv{|mB2α3Tl]î)fYaMJ/VΔ݆%!)g=WA27hŕqk4$sm&:DTmS^Œ,I@FB8z2XMi Um}3aTXryM5(ܢQ6`*:ne'=#BѨHǷ[8*F?Sv( 5G$I+$&h09N" Ofr[6[TZ$1L۹G 9~ I#PmSa 2rhOzSʀYwǜqhn?w]F_!\ذ#{;߃d.{IquFq- 1235.00 g Zn×1 mol Zn65.38 g Zn×1 mol H21 mol Zn=0.5353 mol H2b! qjM;#n{ʰs%ʟ˶հԙ尚6͆մ/Ǹ>}ճ/`龰ݽ~躮ҥ<jD^YLN5n߁?[` ڻn>+B];pL„wNX@Iy]w pOxt BЕby!hMg`p8@ZW^WIYv:irkŌ:%߽U_7ql sJS4)JRqj崴J /Ń&:uA9j+kK| } ܉S,?w\yMO~Ƽ\OF;ca,}=\A/Ob!ê|Pl߸(|u f ` 4ϟǃ;Wv9|>3w?6mJj xh߻W/0g TeVVN&CskHP^%~<'Wj\3NEn3S<ȫW̖h-|խ g6 x șкJʵuOоϤ"Jme,}}=t[͚l^Zz* K669a/"sy$8xKbp>"iSlm5"(|&!xrӥ#iϏ>fH/klџppgmR|D&;\"NU)#~PBon=w.]c9czw]{1@Y|%`$y >yvZ9pw47;.PkGt|Oؽ`a]d9R{)*LunfQc[ڼ'/`pcDat.Fbt `i YoozJCE or:8IǮ(-R:Y6&@zLlVR{aj^|yt^P=mqhErE#mr X{w~gB5|\A9uUY+LUԎI"vu~j3Y TЫB_)Ϝ1JɤgJsKq|0%vSkLlFtwn}' Hve\(-jQbji|T7mpF`a"xBF!GN0A>ɬڵ4ڲ[WVюM>zѲѱ'0#',-;ٵog>2xR 1212.0 g H2C2O4×1 mol H2C2O490.04 g H2C2O4= 0.133 mol H2C2O4400 mL×1000 mL1 L=0.333 M H2C2O4b 09wE7P !n 09wE7PPNG  IHDR$ʏ5sRGB pHYs+ WIDATx^]ibMr.]N.v'9 1߿K{ @C!0 MJ"}܇Bg%"c˵o'S3X8#ZS,*8Q.G&ϫR(!0u %jH'ВLD"YUS=|tKՊdPIF%gl23T)SҋVL;RXz"SǦoA'2ic]XZP,ƬoUB oD{ÞKj•[$ss:y/paGS!h 4&#{QG݉,",$K 'A*H;ӉvR2w--]!Y׾-6&Wd|־]] TVlxp4Vk38;H*8UNlj|&-I&Whąj z孍̯͑3le6gh0NO7.5#_1PڰxPYEMNlNJ;uw07,철٬*xnp7Rbn-ܵ;Bݩ NT~?s_n_'9~}uYM૚\e#Uܩw\xwBf\bf(7uw*Y XzvPT/>[MH/L+e'x6 ?fHg&_L:3 %l%/ljcޑC?5&$ m6H\e }5^s6-vT.CfU/ڴ xLrmۿ;1yMh X6lBTcfLz+KuG5V%͔FEkߩ.T(WLwRߝG)`p8l] P^TRGAkf97u5-4FrlEhO f!AA(BL-I-7~|)84!/R\g(vR&͎#mN6{P`.ժ^$XdW!$"I&4HHM4>y)@aR\WsϺ6m9*2U¾lE6ń79@J@[2:.Tѯ27>.8[5?7py,ŖH4h FyE"O\}@c^ *Pea挤 n.>Nݦ [N}}Qd%*Ca/=.!h # E`2E棭֝.~{ӴQGo`|= iu");2O&ugg}%WiyV+ܹ+Ӧd?\U#y%8rgdOhxrP1'Zowsu W#Deb͂ⲌWn h 솊rE)ǪDR";̞`Jv;7(E| u*eVm˄S[K{Deb878{VlDo c5(M64F;r(0;u<2v 㻌yf9AxCxQD{\]m2l!((xBGZO)X[Up,<ajWR9Kq^ǎ=}PfʅC^b*ŠGF.:GU ^}foʓXI߹j/،g.) !Rrau2P2Z4@C`_}}QwGE\opt㽂H?Unh5RNK8 m.rjq>/OI`T LS5< 3M "м ުh4C?f IENDB`Z=Dd 1  3 A"0 0 1225 mL H2C2O4 DZ.×0.333 mmol H2C2O41 mL H2C2O4 soln×2 mmol KOH1 mmol H2C2O4×1 mL KOH soln.0.230 mmol KOH= 72 mL KOH soln.b y֍',˝V̶4t iY!n y֍',˝V̶4tPNG  IHDR"`sRGB pHYs+ [IDATx^] v( qg9uOH @qi{&HB`4>9\_aNW(:U_}uCp,ҍ-|>x^Oo; oHB=(!i:J0;^%L XU;M .a͌D+0uJw񾎇ȓ=ayvg }`Of_iLȯa1(Q x:H2iǞIg1cP XT8:`d}>fyړPog*q1Np?e|Y-4e4vGDЄd1^&/h~Dy *lV 2f+e˺]y+$EqC)r1]~ORw/oMλn/K ovy?lC'܉4.Xn}&cPz~|}x=] "[]%`6..@zre9IK{ jzh n4=``5WDĢnc܂".tEݹVLM,ބ|vsYDLLN@Za\bzz'̬l^%]tBoQR r jX@;U%$Nbgw<֙;~H '\P4t mY Q #W'܇.p[,K-]Ulu+NcCgHQol6MF(a:=46+TgGZFK=r?OS* m EDE4cfje҂ocl"(?iFr3 k{`A[\N"z0m{G`bDSA `) 8hK} $Փ;PCua9.h@GFZA0ϒGk:]q7C$ESએrfW-\J3>"L@Ic$/IHI+5:UC]>U|W$m(:Zc9bW:3{qIߴL`f6 خdI07] '` pvd+&k,`J#Av9aw=>cffSƏ$_ K)x:14PǘU0aMC6=t3Rr 2JL̒sJ>HELQ5p=N/ 􏺗)*D a}1Lx)BUrz|lIL5bV&) iW4g|bLG}̞<5Oc[ mB#mXYϑ}k(/pϳj>]ȩ-MG BB|K{4CW1A  Mv+#mG ᩘNf*ge=`NM ]&ͣvϕu(dTRݪ4msSB?C"CTKNV?fz2{4r;Iuj3hyW% 1G/rV0rۮѺ zu`+uNL@xP=dU]dpT%yrL{n!N^bhސeg4IQy `"͔:9fRc 9* {z"ەA{=,Z=-̄nY[|^gXZ|]wQ plx.M~Lu1v?dP~li 7pƺK| 9'⺉LQ8z?pw |Eң8 I[pGI_PlVQ4<1 54Ό=i OpEY'CT0 44MUk:54'ZYU@^@!uT 0RIENDB`Z=Dd 1  3 A"0 0 1225 mL H2C2O4 DZ.×0.333 mmol H2C2O41 mL H2C2O4 soln×2 mmol KOH1 mmol H2C2O4×1 mL KOH soln.0.230 mmol KOH= 72 mL KOH soln.b y֍',˝V̶4t Ö!n y֍',˝V̶4tPNG  IHDR"`sRGB pHYs+ [IDATx^] v( qg9uOH @qi{&HB`4>9\_aNW(:U_}uCp,ҍ-|>x^Oo; oHB=(!i:J0;^%L XU;M .a͌D+0uJw񾎇ȓ=ayvg }`Of_iLȯa1(Q x:H2iǞIg1cP XT8:`d}>fyړPog*q1Np?e|Y-4e4vGDЄd1^&/h~Dy *lV 2f+e˺]y+$EqC)r1]~ORw/oMλn/K ovy?lC'܉4.Xn}&cPz~|}x=] "[]%`6..@zre9IK{ jzh n4=``5WDĢnc܂".tEݹVLM,ބ|vsYDLLN@Za\bzz'̬l^%]tBoQR r jX@;U%$Nbgw<֙;~H '\P4t mY Q #W'܇.p[,K-]Ulu+NcCgHQol6MF(a:=46+TgGZFK=r?OS* m EDE4cfje҂ocl"(?iFr3 k{`A[\N"z0m{G`bDSA `) 8hK} $Փ;PCua9.h@GFZA0ϒGk:]q7C$ESએrfW-\J3>"L@Ic$/IHI+5:UC]>U|W$m(:Zc9bW:3{qIߴL`f6 خdI07] '` pvd+&k,`J#Av9aw=>cffSƏ$_ K)x:14PǘU0aMC6=t3Rr 2JL̒sJ>HELQ5p=N/ 􏺗)*D a}1Lx)BUrz|lIL5bV&) iW4g|bLG}̞<5Oc[ mB#mXYϑ}k(/pϳj>]ȩ-MG BB|K{4CW1A  Mv+#mG ᩘNf*ge=`NM ]&ͣvϕu(dTRݪ4msSB?C"CTKNV?fz2{4r;Iuj3hyW% 1G/rV0rۮѺ zu`+uNL@xP=dU]dpT%yrL{n!N^bhސeg4IQy `"͔:9fRc 9* {z"ەA{=,Z=-̄nY[|^gXZ|]wQ plx.M~Lu1v?dP~li 7pƺK| 9'⺉LQ8z?pw |Eң8 I[pGI_PlVQ4<1 54Ό=i OpEY'CT0 44MUk:54'ZYU@^@!uT 0RIENDB`?Dd f w3  3 A"2 þ2 1235 mL H2SO4 DZ.×1 L1000 mL×6.0 mol H2SO4 1 L H2SO4 soln.=0.21 mol H2SO4×2 mol CO21 mol H2SO4×44.01 g CO21 mol CO2=18 g CO2b TtFV8 !n TtFV8PNG  IHDR){)sRGB pHYs+ IDATx^]ib: 8!: 9Nar>yaLIiIlY?Y |w4PEzW!߈Zj:WoEkpϏ}o?|Θ;xv.xz\X8(awj>=hd(`!KΖc~ k'*Z}贈|ݹ<~4e)e]"3}A J\.Ϯ@ab\Y5ed\1>EZd?=gc|Cƅg1Qw>3{"OFi [к-o Ta/#u)UeFxW{\LDQHz粀~ udL9+oIhe=L0zVSy.5m0Q9FS^Yi:٘`^ If7̾< T>2.mt.< >DZ$B) ̇t8O9U y:˝VFK哳3o!"@G:w|iXBLKKUʝx jJ=:4ɯsA0O=K>աܳƹ<.ՍkϷ!gɤ(=&$3"iyH1^7M}G&93oׯ/QEP_dM{)݊u$%b,,3y5/'x_Bȗf$8UmY+k&Lpȑ2e1 k +CRt7k_AZ,ZI*\MD#O#+sڒ»={fE+N8UsfNH4@ _ONn,QuT[:DLǩ,EH+@b*@R񤀺(2^xylMY  Ԕ# lc}X{DYcP =C¬.u,;q CK^|ag讯M0:M'⭎T5&cwcZ G"Xv;*x?VK& H# (ǛyǢiϥyb(n^R{N_U:roӪHmԓ)c}0L/2Iվm?m)'gNסsF bg8&Qo= Ўsl6J)}Os/LՅ+`C,bBB;~) $LzTv5Sp%{ w5o8Z!%et(UOg4~R|͜bu@K]ʟQ$ H5jK,zqeT}@=)LY'_*=Rպl}E+^nr=z ߱"VɄCpТXтMքǜ^Th*5d}j/nIﱮ @]YnX?/-تǏyc Jm\,^d]~HZ{vPb6 lx}CBdA@ ) KGv81<8PaQ67gD밻NL`x#6tnG']ALSTJ$e' қ>6{Kvl #Ġi{7ճ ^u$cwDxØS]] x`P5Sv#6|ҡJeHh*wםcpG>o@N4 x5 +"XWF{G בw0;*/Vȯjnhhx] יIENDB`?Dd f w3  3 A"2 þ2 1235 mL H2SO4 DZ.×1 L1000 mL×6.0 mol H2SO4 1 L H2SO4 soln.=0.21 mol H2SO4×2 mol CO21 mol H2SO4×44.01 g CO21 mol CO2=18 g CO2b TtFV8 "!n TtFV8PNG  IHDR){)sRGB pHYs+ IDATx^]ib: 8!: 9Nar>yaLIiIlY?Y |w4PEzW!߈Zj:WoEkpϏ}o?|Θ;xv.xz\X8(awj>=hd(`!KΖc~ k'*Z}贈|ݹ<~4e)e]"3}A J\.Ϯ@ab\Y5ed\1>EZd?=gc|Cƅg1Qw>3{"OFi [к-o Ta/#u)UeFxW{\LDQHz粀~ udL9+oIhe=L0zVSy.5m0Q9FS^Yi:٘`^ If7̾< T>2.mt.< >DZ$B) ̇t8O9U y:˝VFK哳3o!"@G:w|iXBLKKUʝx jJ=:4ɯsA0O=K>աܳƹ<.ՍkϷ!gɤ(=&$3"iyH1^7M}G&93oׯ/QEP_dM{)݊u$%b,,3y5/'x_Bȗf$8UmY+k&Lpȑ2e1 k +CRt7k_AZ,ZI*\MD#O#+sڒ»={fE+N8UsfNH4@ _ONn,QuT[:DLǩ,EH+@b*@R񤀺(2^xylMY  Ԕ# lc}X{DYcP =C¬.u,;q CK^|ag讯M0:M'⭎T5&cwcZ G"Xv;*x?VK& H# (ǛyǢiϥyb(n^R{N_U:roӪHmԓ)c}0L/2Iվm?m)'gNסsF bg8&Qo= Ўsl6J)}Os/LՅ+`C,bBB;~) $LzTv5Sp%{ w5o8Z!%et(UOg4~R|͜bu@K]ʟQ$ H5jK,zqeT}@=)LY'_*=Rպl}E+^nr=z ߱"VɄCpТXтMքǜ^Th*5d}j/nIﱮ @]YnX?/-تǏyc Jm\,^d]~HZ{vPb6 lx}CBdA@ ) KGv81<8PaQ67gD밻NL`x#6tnG']ALSTJ$e' қ>6{Kvl #Ġi{7ճ ^u$cwDxØS]] x`P5Sv#6|ҡJeHh*wםcpG>o@N4 x5 +"XWF{G בw0;*/Vȯjnhhx] יIENDB`q5Dd (  3 A"I( C( 1250 g NaHCO3×1 mol NaHCO384.02 g NaHCO3=0.60 mol NaHCO3×2 mol CO22 mol NaHCO3 ×44.01 g CO21 mol CO2=26 g CO2b #d`Mr 'R!nj #d`MPNG  IHDRZsRGB pHYs+ IDATx^]a: gq~qBi8uz$ɗl@j,O-ԫJJJJJXSq(hbg1J%pCmtbZε~zۛ{!d$~+T؟41еAA,(9R%%[9[Ņa BU_ilIl*+yAZdH&p:t7NN`PTVj/UsΆ k )lyoX%wmEa "snþӃ?4Mmq 7 jr^~mJ]f\e'_^ţ4 ǯj?i_Cix}醳vtudx5ۍ j54B|}|#;tM{[\*to&0? c[:-~`ж 5,=Jh}`yye_]5<,g٦r XH!d&WEU4|zYAE9gg~Ps/)ɟDdD+XȅqJT֎Ēib^ed͙mJJIѭ0 (BtXpc[ZXjSnhU)΀h&}hSDC N8BdUL`Y[boQmgW} Xa咝EY\Hd0'JԱ.|As{~-"r)bV"36?)f`ʘWcs-GNŌeu323&UЮ ( [b֤r~NZ"-='m7,l=K:i'jb=AP 8bz Út5u=ھ5{dR΃Liz5\Սk6[+p za QlId lxUhVFn;;Q 8vcKPU\(4n`NTkYU|NA؎CC @5ZJ-aU;S[Amz\qאrP+=|e½ yB;oNl"a%φYcV$}*;̆~aǟ$,>0´389mVX,y雤5@k,4 n<躌1)n͝2+ #\4cC[D\JC#hARA38_Wx{)aϱSAG<ϜÜ=T޼Upx:)2s 3gvЩfyI h+ ZĦ%PAϳe意 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w9:˩nv9MBڪgF'|V   x +((((PC@mOnnDݙ&)~nufJŒZˤ{,yށW#%\(1[}_9Ѷ8MKu|m2,bNj ϫ*sů{SO)]uNY'pI@~Z_*F42}anD:WgK7h;e ~I ^w Kirs´Ia =|48D3a4Y;3gNe,P[;q{a:ܑYm{G0bUhLL;9SN> Sl A2q1X#v tj36qlE5"S^V[;O՗R2/l 0vp%Dx拗uuT@>%0؋<=y"檽BZikC,}9Ω*o/ ñtv{c"rV|RT[ a˅DЯR1V8nHƠ @H|\S7< #_85x7b[۶] m|Χ`%8eQ=S=uZO^uny\}q;O`P b]4ՈB*dOhݡH2ȼmfNj _u]r!I|?6+p U7D"~JqYK/U@c=]"Th{ʒmCgjH^5Mtx2e<$LLކ'@V"^۪)o{nD3J(Nᆒ)0_oY8-s>6]YX,O *aIENDB` Dd b  3 A"$  120.18 mol NaHCO3×84.02 g NaHCO31 mol NaHCO3=15 g NaHCO3IJ1<>&ؼ Y(!n<>&ؼ PNG  IHDR>jLtVsRGB pHYs+IDATx^\mb0 fq w8G$Mۤ-]/~4OY߾zUTlFow<GXsa~d{ʲԇ/@֫\NDʩke躮m&Zgz2ma"]44 HFp >96Zĝ}µC6!FeQtٶ$7`.; Hhqv~DM佞<02P$f92=bluєXIN G;zzeYRN Trn So)iz ^|T?A{Ycf}N&i{|h,c]%2<8 laED4 !¨4ҍyrHk/%zb}/&98=BM~B&Wn2ՐK3E Ta׊=oeKiEVv\|({l^m87*骊`+|X&@#pbk@}-ڥCW`#aܛ?]n!5nZJ4wm"AS0UiXF!wI۩ RM Y HhB +?eq$P^%)yҫXT5K8~U\62UJRZAO+vhtͨW3(]898sK^0W2{mw W(w2@$_~;aXCJY~_j}sHL`~ETcN_a_JaQл+ֆXΤe= WRY|xyQ/c](Qi9[.^%{IzR8]jA=BA/Jԩ+!b~rՄ6p=ZYl3Dݥ;;?>L(S5)˘KyXf Dm#Olp$@zjG89IV@|$NzN&Q~rvkzs2)뽦}8 pB%01pWQ6c`{M:2á^rp> 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