Chem103F07T2 - Chem 103 Exam 2D m Nov 1 2007 Kramer Name...

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Unformatted text preview: Chem 103 Exam 2D m Nov. 1, 2007 Kramer Name Kg“? Lab Section __ 1(13) Place the cor ect answer in the space at the left ’4] k4 ’7 e l. A hydrocarbon that contains NO C to C double or triple bonds is called an I C ”1?”! 2. An organic compound with the general formula R — O -— H is called an 50/“ if 3. The concentration unit molality is defined as moles of kg; 50/V3kj‘ 4 per ' 5,1,.” l e [,ng/ (@5- A solute that completely dissociates into ions when it is dissolved in water is know as a . )W’Vl W1! pie 6. A solute that does not ionize when it is dissolved in water is known as a €292; é fl r ”)1“ 7. In a metathesis reaction, the ions that do not take part in the net ionic equation are known as . W864. fins/1 E it»... 8. The metathesis reaction of an acid and base to produce a salt and water is . specifically known as a reaction. ”(aid/fl ha. 9. The half reaction in which electrons are lost is known as alan 2 4 reaction. { X / 0 ‘ 10. The value owa at 25°C is o/u. 11. A is a substance that dissolves in a liquid to make a solution. $5.“. {4" 2. What is the oxidation number of chlorine in the chlorate ion? 0503 .. f a 7 4.4 5/0 13. What is the [1130*] is the pH=8.34 54;; M," m: [1(16) Place the letter of the correct answer in the space at the left. 1. Which of the following does NOT contain a C to 0 double bond? 6 A. ether B. ester C. ketone D. carboxylic acid E. aldehyde :- 2. Which of the following could be a cycloalkane? ___4‘______ A. C4Hlo B. CI—IchOH C. C2H4 D. C3H4 E. Call“) 3 3. Which of the following will NOT cause a metathesis reaction to occur? A. formation of a gas B. formation of a strong electrolyte C. formation of H20 D. formation of a precipitate E. formation of a weak electrolyte Name 247 Lab Section 2 4. Which of the following solutions contains the greatest number of ions? A. 400.0 mL of0.10 M NaCl ( «In/9X a.) a . 08’ B. 300.0mLof0.10MCaClg (, 32m)! 2) J ,of C. 200.0 mL of0.10 M FeC13 (, 2,) (d) {.W : .' 0&- D. 200.0mLof0.10MKBr (2)50“) ~ ,0‘/ B. 800.0 mi. of0.10Msucrose (“5-) m) n) .g .08’ 5. Which of the following is a strong acid? A. HCNO B. I-IClO4 C. HCiO D. HBrO E. HNOz 6. The interaction between solute particles and water molecules, which helps cause salts to dissolve is known as: A. polarization B. hydration C. dispersion I). conduction E. coagulation 7. Which of the following would be INSOLUBLE in water? A. sodium sulfide B. potassium phosphate C. barium hydroxide D. caicium nitrate B. All are soluble t/ 8. In the reaction: C(s) + 02(g) 9130919; the carbon is? A. The oxidizing agent B. reduced C. the electron acceptor D. the reducing agent E. none of these 9. In the Bronsted .. Lowry system a base is: A. a proton donor B. produce 0H ‘ C. gains electron D. a proton acceptor E. loses electrons 10. Which of the following is the weakest acid? A. H2303 B. H28803 C. 1'12304 D. 1'128604 E. HC104 11. Which of the following is NOT a conjugate acid/base pair? A. H2300 H804 H B. HSO4 ” ISO4 “ 2 C. HClO4/0103 ' D. HNOz/NOz _ E. H3PO4/H2PO4 _ A. HSOg_ B. I-lSeng C. HSO4C D.HSeO4" E. Ci04' 13. What is the pH of a 0.10 M Ba(OH)2 solution? A. 1.00 B. 2.00 C. 0.70 D. 13.00 E. 13.30 14. Which of the following would be soluble in water? A. CuCl B. AgCl C. PbBl‘z D. Hg2C12 E. Agl 3 ,. if D D 2 & $7 12. Which of the following is the strongest base? 5/ 15 . Which of the foliowing could be used to remove barium ions from solution? A. hydroxide ion B. nitrate ion C. carbonate ion D. chloride ion E. perchlorate ion ° fl D Name 7/‘fi Lab Section lfl 16. What is the oxidation number of Cr in the dichromate ion? a '1‘ a? A. +14 B. +12 C. +7 D. +6 E. +3 111(14) Use the following compound bank to answer the questions. NHz CH3 0}! A. Q B. Q C. Q 9, GO E.CH3C1 if F. CO G. H. CH3"—‘ CHzfi‘C WO————H O O I. (:HCl3 J. “‘3" CH?“ C __ 0 fl” CH2"— C”: K. H ......_ C "“ H o O 0 ll ll 11 OH P.CH2C12 R. (CHSCHmNH s. CHG“CH—‘C”a l T. ”a“ "m" C “"“ ””2 V. CH3C1 Place the letter from the bank above in the space at the lefi 5 1. An aldehyde “Em 8. Naphthalene £2 2. Acetone N 9. Acetic Acid /-1 J 3. An ester 3 10. A secondary amine Z 4. Methylene Chloride 5 11. An alcohol /“ Egg, 5. An ether A", MSW 6K / 12. Urea L 6. An amide [i 13. Phenol /3 7. Aniline f 14. Chloroform Namem 7/3? Lab Section IV(15) What is the be common name where appropriate) for each of the following. I adore — 5"" érmo iv/um‘ "may”... [gen @j—bfmg ”5.1.4 [orb #0!!!” e " I y” I>—cn2—— cua 67% 1/ czdatoroeane pr ch/oprrzpmag/ car/104m. E. V(6) 15.27 mL of 0.1 13 M NaOH was used to neutralize 25.00 g of Vinegar. What is the mass percent of acetic acid in vinegar? (MW Acetic acid = 60.06) NaOH(aq) + CH3C00H(aq) 6-9 NaCHg,COz(aq) + H200) 5 644‘.” y Wyn/gay 2. m»! 055603114 —-=> 3 (LA/sen” W Wat/J} ”VI-W: MMMW (ma/m M) {éJ/3M} =- 0. (Jo/3...? émmMW Wm” ”fidwjfidflyj/émflé ) .7. “/0994? 3 a x fpv “Z0 M‘s-LS W «A. Ans. 0’ 61/ 5’ 2) Name___ 7% $7 Lab Section VI(6) What is the molality of a 0.123M HCl solution when the density of the solution is 1.030 lmL? HCl = 36.06 g MRI/C! C/g/‘aaa 5’4"” ”7V5!“ :: ”3 “21m W. K; mm W- 5”“ (/zsr-fi.) ”MMA) flaw; : /flj£’j.5’"g’\- We a.123W//¢/ “"1737“ ' ”A. %%W {”’/2-3’””P”“) 34%;) :- 4/5 6053/7/56 20;”??? m Mel? xogr-‘t. 3%03/0303'6f‘6k ~549/JJ32‘9’Q’ = wffit aalzo we VII(10) A KOH solution has a molarity of 3.16 M and a molality of 3.21 m. (MW KOI—I = 56.1) A.(6) What is the density of the solution? ”1,55 5% 3 741 u? KW : H33Jt9mHKm4 )m. 3.2: d 737/ Adr—g,‘ 139K; {vita 3.2)wmm-I 3,11.quth =x:/. W371, 5A.: /é/.5Tomes-4« --s '“-_________,,__..,.-——---v I wk ' y A 5% W I As c/= #060153 :: A/éfifl-y/mL was meta Wis/40, m.“ (m4 ma; .3» s . a 53.; 2 Zia/265:" X 73‘) mM 2 - J 3(4) What is the mass percent of KOH in the solution? £014 014 ”#55 70" h: /Mm:/i_7k 3‘!” 3/6724 76) //J'v-Jacs Ans. [575 Z) VIII(4) 236 mL of water was added to 378 mL of 7.45 M HCl solution. Assume the volumes are additive, what is the concentration of the new solution? M1» Xswu mmb tan/mt. VIM! “it/WM; (3}3m9(¥.4fi’fii ’ ML: 4-56Z0 Ans. . 57' M (6/51)“) ”2. Name /’7 Lab Section IX(6) Write the net ionic equation for each of the following. A. the reaction of lead(II)nitrate and cesium bromide 75(W3 “A? 735 372 ,1 CS. W3 B. the reaction Iff acetic am and potassium hydroxide €143,651?” «wk/m Jr Kc/Jacim4—IJLQ C. the reacotin f calciniuacetate and lithium phosphate ('4 53% 6' 0?) 4- Li P04 /__,_.__._fi______‘__\\ 4- 2 —- 5 D X(6) Balance the following reac on in ass: Ni+ so.—2 —> Ni(OH)2+ s . .. 3M —=, juz“zwé'v “ 3 [/VI‘ ‘37 NI‘H’aZe be) 8130001)“? 50¢“; *""’ .5 +- 4/40695m " “$74014“, 2% 54111104.:gm Jyl‘*gl'4a}5osfz_§ 3W1. +~S+M' grago iii/M50 ' ”Us/093M m awe-2W" 02. 3A1; +509'La4/4 0 43M"? 5+ am! "' The species oxidized is 1/!- The number of electrons exchanged in the reactiou is é XI(8) For each of the following: A. Identify the acid and base in the reactants and B. Identify the acid — base conjugate pairs. 6) 1. NH3 + HN02 é") NHH +N02' A. The acid is 150‘”) gm The base is UH g B. The conjugate acid ~ base pairs are: AM; Z Ml. g" 4W ND: " Name é £4} __ _ Lab Section XI(continued) @1003‘2 +HS 6-9 HC03 +S’ A. The acid lS //5 The base is 6&5 A B. The conjugate acid — base pairs are: " 2' {xi/1:0: L5 2" XII(6) A 0.16 M weak acid 15 0.028% ionized. What' IS the K. of this acid? Mia’s/a0 1...— Ag off/4 o g M1 I M, c»! 4.1 ' 4- C 1-34 1! K // .(aflt/{Ffi/o s)(z/4{J)x/a ) Eda»; r 1‘ 4-” WI»; 5/4. - ewé’ ~8” _ .1 x’ =/.2,3"":tw yo/mryf: :X/I'D a? LIX/a . 05002.? :35.“ x: 9’4fi’xr0 :f/J:'.?Z_D11A“S‘~ XIII(6) What 13 the pH ofa045M solution 01111111111119 K534 3 1:10—10 . “J 3711/1112 -f-/-/2CJ fi/vwnz/M/ ,1. p; " K 3 EflA‘AWT-i E37,! ~ I “I 14;: J j o #5 X x ,5 D , 14:3) ; X) C, — Y 6/. 3 7w .- 0 (7/5” 7“ K x C' '4‘» “'g I X33143? two" =56” . yams—4.476, Pia/3H" 4M“ Ans. Z 1 fig XIV(5) Determine if each of the following are acidic, basic, or neutral w A. potassium acetate b fl $ 1 'c :5 8 “’4 Egg? ‘ B. barium chloride )1? M 7‘7’9v0 5.5 5/5, ,_. C. methylammonium nitrate Q a}! c C %®:< .5 D (3611500011 éfl/(i W Zia J , E. diethylamine b 193) C ” 1, as! Name 7/2“] Lab Section XV(5) Use the activity series listed to the predict the products of the following reactions. Write NR if there is no reaction. (names or symbols 0K) . - - - 1. magnesium and sodium ion 8* ”K, M 5‘ Na." 2. go (1 fiilver ion -) fl 2 215+ ”—"m‘ "—‘” 3. barium ion and ferrous ion *9 N 2 {2—4. F #2. —‘—“}W"——’“— 4. zgé‘runinum andesil‘verion-B> 449 #— 5 L ’4’ ”‘7- WM 5. plumbous 1on and cobalt —) 7V3 C4» POINTS PAGE 1 g (a PAGE 2 g x} , PAGE 3 /5 PAGE 4 a? / PAGE 5 a? 0 PAGE 6 / 0 PAGE 7 I? l / PAGE 8 5 TOTAL 126 ...
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