ࡱ> LNK[#` bjbj .....42/lArb0(0000000````A:aD~iDq$sh vq00000q00qz5z5z5000`z50`z5z5X\00 07l.p3[L\r0Ar[v.4*v\v\\00z500000qqX5"000Ar0000).. CHEMISTRY 141 PROBLEM SESSION # 1 McMurry and Fay Chapters 1, 2, 3 & 4 Give the name or formula as required: (NH4)2CrO4chromium(III) acetatePb(ClO3)2iron(II) sulfateNa2SO4potassium sulfiteCa(NO3)2ammonium oxalateK3PO4dichlorine heptoxideLiOHaluminum oxideAgC2H3O2sodium hydrogen sulfateAl(MnO4)3mercury(II) phosphateCuCr2O7hydrocyanic acidBaCO3stannic sulfateCd(CN)2zinc dihydrogen phosphateMgC2O4iodine trichlorideRbClO4cobalt(III) thiocyanateCS2mercury(I) chloride Give an example of the following types of organic molecules Alkyne Alcohol Carboxylic acid A macadamia nut grove has 130 trees per square km. Each tree produces 930 nuts per year and 24 nuts are needed to make a box of chocolate covered macademia nuts which sell for $6.49 per box (cost of production = $2.37/box). How many acres of macademia nut trees must be planted to earn a profit of $150,000 per year. (1 acre = 43,560 ft2) Give the number of protons, electrons, and neutrons in a  EMBED Equation.3 ion. What is the name of this ion? Silicon occurs as three isotopes; 28Si with a mass of 27.9769 amu, comprises 92.2% of the natural abundance and 29Si at 28.9765 amu is 4.67%. The atomic mass of silicon is 28.0855. Identify the third isotope. Perform the following calculation and report your answer with the correct number of significant figures  EMBED Equation.3  Write the a) conventional, b) total ionic and c)net ionic equations for the reactions which occur when the following aqueous solutions are mixed: HBr(aq) + Ca(HSO3)2(aq) ( Fe(NO3)3(aq) + NH3(aq) ( AgNO3(aq) + K3PO4(aq) ( Na2C2O4(aq) + HCl(aq) ( K2CO3(aq) + HCl(aq) ( A solution of 35.00% zinc nitrate has a density of 1.3678 g/cm3. What is the volume of a sample of this solution that contains 25.00 g of zinc nitrate? Determine the oxidation number on each atom in the following reaction and identify the element oxidized, element reduced, oxidizing agent, and reducing agent. PbS(s) + 4 H2O2(aq) ( PbSO4(s) + 2 H2O Balance the following equations using the half-reaction method: HClO(aq) + Mn2+(aq) ( Cl2(g) + MnO4-(aq) (in acid) Sn2+(aq) + NO3-(aq) ( Sn4+(aq) + NO(g) (in acid) MnO4-(aq) + NO2-(aq) ( MnO2(s) + NO3-(aq) (in base) A sample of sodium phosphate dodecahydrate, Na3PO4(12H2O contains 15.0g of sodium. What is the mass of the sample? How many water molecules are in the sample? How many moles of phosphorus are present? What is the mass of oxygen in the sample? A 0.2417 gram sample of a compound known to be composed of C, H, O and Cl only, is burned in oxygen yielding 0.4964 grams of carbon dioxide and 0.0846 grams of water. A separate 0.1696 gram sample of the compound is fused with sodium metal, the products dissolved in water and the chloride quantitatively precipitated with silver nitrate to yield 0.1891 grams of AgCl. What is the simplest empirical formula for the compound? Sulfur dichloride reacts with sodium fluoride according to the equation: 3 SCl2(l) + 4 NaF(s) ( SF4(g) + S2Cl2(l) + 4 NaCl(s) If 30.00 g of SCl2 and 20.00 g of NaF react to yield 8.00 g of SF4, what is the percent yield of SF4? A 354 mL aliquot of 0.228 M FeCl3 is mixed with a 652 mL aliquot of 0.410 M KOH. Write the balanced equation for the reaction that occurs and identify any precipitate formed. Determine the mass of the precipitate and the molar concentrations of all ions present after mixing. The volumes of a 20.00 mL pipet, a 50.0 mL graduated cylinder and a 250.0 mL volumetric flask were determined by weighing the amount of water they delivered (pipet and cylinder) or contained (the flask). The pertinent information is given in the table; all volumes are in mL. For each device rate the precision and accuracy as good, fair or poor . The balance used for the measurements was calibrated and thereby known to be accurate. Itemrated volumeRated uncertaintynumber of trialsaverage valuesprecisionaccuracyPipet20.000.03720.460.02Cylinder50.00.2549.80.3vol flask250.00.15250.10.7 Sodium thiosulfate, Na2S2O3, is used as afixer in black-and-white photography. Assume you have a bottle of sodium thiosulfate and want to determine its purity. The thiosulfate ion can be oxidized with I2 to form iodide ions and S4O6-2 ions. Write and balance the redox reaction that takes place. If you use 40.21 mL of a 0.246 M I2 solution to react completely with a 3.232 gram sample of impure Na2S2O3, what is the mass percent or sodium thiosulfate in the sample? nqrstwx' ( ) * + , O P Q R q r s t  ' ( ! 4 5 6 7 ` 4 5 ˼ h6&CJh ]CJEHH*jhw"hw"CJEHUj+J hw"UVjhw"CJU h ]CJH* hw"CJ h\,gCJH* h\,gCJ h ]CJD"2GHnyz{dh$1$Ifl' & Fdh1$$a$ kd$$IflrHV6$Lh @   tfff0$644 lap2fffdh$1$Ifl$@kd $$IflrHV6$Lh @   tfff0$644 lap2fffdh$1$IflnAkd $$IflrHV6$Lh @   tfff0$644 lap2fffdh$1$Iflf@kd$$IflrHV6$Lh @   tfff0$644 lap2fff dh$1$Ifl@ kd$$IflrHV6$Lh @   tfff0$644 lap2fff    " # dh$1$Ifl$@# $ kd$$IflrHV6$Lh @   tfff0$644 lap2fff$ - . / G H dh$1$IflnAH I kd$$IflrHV6$Lh @   tfff0$644 lap2fffI S T U k l dh$1$Iflf@l m kd$$IflrHV6$Lh @   tfff0$644 lap2fffm u v w dh$1$Ifl@ kd$$IflrHV6$Lh @   tfff0$644 lap2fff dh$1$Ifl$@ kd$$IflrHV6$Lh @   tfff0$644 lap2fff dh$1$IflnA kd $$IflrHV6$Lh @   tfff0$644 lap2fff dh$1$Iflf@ kd $$IflrHV6$Lh @   tfff0$644 lap2fff dh$1$Ifl@ kd $$IflrHV6$Lh @   tfff0$644 lap2fff    % & dh$1$Ifl$@& ' ( 1$kd $$IflrHV6$Lh @   tfff0$644 lap2fff( d k l m n v w x y > ? @ ^ _ ` h1$^hgdw" & F1$1$gdw" & Fgdw" & F` 3 4 5 6 7 8 9 : ; TUtuvwxyz & F1$  ^gd! gd! & F 1$gd6&1$ & F1$5 6 ; TUX\ijklprstyzǶ쮪xpdpdpdpV jh6&h6&CJ EHh6&h6&CJ EHH*h6&CJ EHh6&h6&CJ h6&CJ  jh6&h6&CJ h ]CJ EHH*h ]CJ EH h ]CJ h ]h ]OJQJ!j<h!h!EHOJQJU!j-J h!CJOJQJUVjh!OJQJUhw"OJQJh!OJQJ hw"CJ hB-CJ!z h1$^h & F hh1$^h1$gd6& & F1$ LMSTbcdƺƺƬvhUiVhUiVCJ$H*aJ$hUiVhUiVCJ$aJ$hUiVCJ$aJ$h6&CJEHH* h6&CJhUiVh ] jh6&h6&CJ EHh6&h6&CJ EHH*h6&CJ EH jh6&h6&CJ h ]CJ EHh ]CJ EHH* h ]CJ h6&h6&CJ h6&CJ .     ST $1$a$gdUiV & F h1$^1$gd6&1$gd6& & F1$gd6&h1$^hdeklrs~ "2;FGHSTU[\ablmnt~;C̷̷̷̰̰̰̰̰̰̰ҢҢҢҗhkj jh ] h ]H*h ]5CJ H* h ]CJ H* jh ]CJ mHnHu h ]CJ H* h ]CJ h ]hUiV jhUiVhUiVCJ$aJ$hUiVhUiVCJ$aJ$hUiVhUiVCJ$H*aJ$:<=>?@ABC~dh1$1$ & F h1$^1$gdUiV)*+,-WXYZ[\3456789: & F1$1$ & F1$gd7SE & F1$:;<=>?<=>?h1$^h$1$a$ & F1$1$9:LMmncdeg!zĹĖĖďďďĖĉ hCJH* hCJ h ]>*CJ h ]5CJ hkjCJ hN,CJhN,hN,hN,CJH*aJhN,hN,CJaJ h ]CJ h]H* h]h]h ]h]h]h]CJ jh]h]CJ h]CJH* h]CJ2?@ABCDEFGHIJKLcdef !&3 $($1$Ifa$ `01$]`^`0 & F1$1$gdkj1$gdN, & F1$gdN,1$3EVdfpy $($1$Ifa$yzkd$$IfTlִ &J %5j80    4 laTz ($1$If $($1$Ifa$kd$$IfTl0ִ &J %5j80    4 laT ($1$If $($1$Ifa$kd$$IfTl0ִ &J %5j80    4 laT ($1$If $($1$Ifa$kd$$IfTl0ִ &J %5j80    4 laTgd$gd & Fgd1$12uvwxyz h ]CJ hCJH* hCJH*hhCJH* hCJ h$CJ,&P/ =!"#$%  $$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ / pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff$$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ pfff $$If!vh5L5h 55@ 5#vL#vh #v#v@ #v:Vl  tfff$65L5h 55@ 5/ / pfff<Dd l|b  c $A? ?3"`?2:i13,Ũ]mbD`!Z:i13,Ũ]m `0(xcdd``fed``baV d,FYzP1n:B@?b /030sC0&dT20$ͤ KXB2sSRs:V~. _ˏqUsi#/ ƕ0ȉ>+ol>& Ma`8@${2Іf.#5w#Ƚ  !"#$%&'()*+,-./0123456789:;<=>?@ABDEFGHIJSMPQRXYTUVWZ]^_`abcdefghijklmnopqrstuvwxyz{|}~Root Entry F`7lOData CWordDocument.ObjectPool+7l`7l_1251093433 F+7l+7lOle CompObjfObjInfo  FMicrosoft Equation 3.0 DS Equation Equation.39q=4 , 3499 Tc +3 FMicrosoft Equation 3.0 DS EqEquation Native Y_1251093787 F+7l+7lOle CompObj fuation Equation.39qOȭ 4.476+(3.44)(5.6223)+5.666(4.3)(710 2 )+(6.53110 "3 )(34.11)(3.842"0.0054)ObjInfo Equation Native  k1Table\SwSummaryInformation(!\P,8xa&#RpeqIj.C \E.- cDd b  c $A? ?3"`?2͈ ҾܐI_1۽؀Ń#L w7y#zc'3r칉 1R7ۭE\c^\h߆'1[~aT6>h_ZQ6ɣUc!#4avl(E("w3Ca4(~Y6jϓFK~R\PϾeQa^SIU.*>K\HBů )V qWEv%. .p dAR skj:e%!n(n&Fڋ!;J*l%FVe2#c8rΚI /68gu mV8C\ܩn-G= puM`)5gu+|'|ʓ^¡>㑀Ljίqem.i&^fj NN;LwqՆQ4OѠ $$If!vh55555j58555#v5#v#v#vj#v8#v#v:V l055555j58554T$$If!vh55555j58555#v5#v#v#vj#v8#v#v:V l0055555j58554T$$If!vh55555j58555#v5#v#v#vj#v8#v#v:V l0055555j58554T$$If!vh55555j58555#v5#v#v#vj#v8#v#v:V l0055555j58554TOh+'0 (4 T ` l x CHEMISTRY 141 PROBLEM SESSION$Cary R. Willard / Dzung T. Nguyen Normal.dotGCCCD2Microsoft Office Word@@4)Z@z+/l@z+/lDocumentSummaryInformation88CompObjq՜.+,0 hp  GCCCD"  CHEMISTRY 141 PROBLEM SESSION Title  FMicrosoft Office Word Document MSWordDocWord.Document.89q8@8 Normal_HmH sH tH DAD Default Paragraph FontVi@V  Table Normal :V 44 la (k(No List `T@` Block Text% `01$]`^`0 CJOJQJ:B: Body Text CJOJQJ@@ Header  ! CJOJQJH"H \,g Balloon TextCJOJQJ^JaJj3j \,g Table Grid7:V0@C B- Table Elegant_:V0j ;B*`Jph"2GHnyz{   "#$-./GHISTUklmuvw   %&'(dklmnvwxy>?@^_`3456789:;TUtuvwxyz     ST     < = > ? @ A B C ~  ) * + , - W X Y Z [ \ 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M < = > ? @ A B C D E F G H I J K L cdef !&3EVdfpyz0@0@0@0 0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0 0 0(@0@0@0 0(@0@0@0 0(@0@0@0 0@0@0@0@0@0 0@0@0@0@0@0 0@0@0@0@0@0@0@0@0 0@0@0@0@0 0@0 0@0@0@0@0@0@0 0@0@0@0@0@0@0 0@0@0@0@0@0@0 0@0@0@0@0@0@0 0@0@0@0@0@0@0@0@0 0@0@0@0@0@0@0@0@0@0@0@0@0@0 0@0@0@0 0 @0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0 0  0 @0@0@0@0 0 @0@0@0@0 0 @0@0@0@0@0 0  0 @0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0 0 @0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0@0 0 @0@0@0 0@0@0@0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0 @0@0@0 0@0@0@0@0@05 d.026A # $ H I l m & ( ` z :?3yz !"#$%&'()*+,-/1345789:;<=>?@ 46::")  dj( 7UXY[moTWfh   # % I K V X o q  Va 7Y] K O 33333333333332Hn  "$GIkm  %djnuy 7  : ! 7#~z~1P[:(3Ɩ#jmڎVp"ƦOaJ<YƖP e'p_- \2- [.g0%"1S>1,w3b[5> -:p(; ";P[\aB\AmBu/qC lL؟:MP[_\RF l`NUۄzQU""eN`, 3N Jb7VacF iZ/ipS:s P}u/4q  hh^h`.hh^h`o(.hh^h`.^`.xxx^x`x()^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.hh^h`p@ ^`p___________________.@(^@`(.^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.88^8`o(.hh^h`.^`.88^8`)^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `. >^`>o(.hh^h`.^`.xxx^x`x()^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.0^`0o(.88^8`o(.hh^h`.hh^h`o() 0^`0o(.hh^h`.^`.88^8`)^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.88^8`o()h ^`hH.h ^`hH.h pLp^p`LhH.h @ @ ^@ `hH.h ^`hH.h L^`LhH.h ^`hH.h ^`hH.h PLP^P`LhH.88^8`o(.hh^h`.hh^h`o(.hh^h`o()h ^`hH.h ^`hH.h pLp^p`LhH.h @ @ ^@ `hH.h ^`hH.h L^`LhH.h ^`hH.h ^`hH.h PLP^P`LhH.hh^h`o(.hh^h`.p@ ^`p___________________.@(^@`(.^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.hh^h`o(. 0^`0o(.hh^h`o(.@ ^` __________________. hh^h`1^`.88^8`)^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.hh^h`.^`.88^8`)^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `. 0^`0o(.hh^h`.^`.88^8`)^`()^`()pp^p`()  ^ `.@ @ ^@ `.  ^ `.0^`0o(.hh^h`o()h ^`hH.h ^`hH.h pLp^p`LhH.h @ @ ^@ `hH.h ^`hH.h L^`LhH.h ^`hH.h ^`hH.h PLP^P`LhH.hh^h`o()#_-qC(;/ipPac";:M~z_\R[.g01\aBl`NUN JbS:sV e' -:"1"eN`"izQU#jm4q\2-O1,w3lL:(3Y[5P}mB##                  u]N,B-7SEUiV ]\,gkj^-6&J$!w" ynyz{   "#$-./GHISTUklmuvw   %&'@K L de !&3EVdfpyz@HP Officejet 5600 seriesNe03:winspoolHP Officejet 5600 seriesHP Officejet 5600 series!@h߀ odBeRLdWINWORDdHBeںں\\30-220-44958\HP Officejet 5600 series,LocalOnly,DrvConvertHP Officejet 5600 series!@h߀ odBeRLdWINWORDdHBeںں\\30-220-44958\HP Officejet 5600 series,LocalOnly,DrvConvertTVP@UnknownGz Times New Roman5Symbol3& z Arial;Wingdings9New York5& zaTahoma"hbfbf^bf " " 4d2QHP?6&2CHEMISTRY 141 PROBLEM SESSION!Cary R. Willard / Dzung T. NguyenGCCCD#                           ! "