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QUIZ - Keg DJ B 35112 Chapter 16 and 1 Review W l(4 pts...

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Unformatted text preview: Keg DJ B 35112 Chapter 16 and 1? Review W l. (4 pts] Which of the following is not a STRONG Arrhenius acid? a. Perchloric acid {H0104} h. Sulfuric acid [H2804] c. Hydrochloric acid (HUI) d. Nitric acid [HN03J .ulfurous acid [H2303] 2. (4 pts}3. Which of the following can act as a Bronsted—Lowry base, but not as a Bronsted- Lem}? acid? a. H1304} 1:. H20 3. (4 pts)l4. 1|iiihlch of the following indieatonfis) would be most suitable for the titration of acetic acid {pKa = 4.?4] with NaUH? .romothymol hlue [transition range pH 6 to 8) 1:}. methyl red (transition range pH 4 to 6.3) _ _ A henolphthalein [transition range pH 8.3 to 1 i) WET cfihfixfl” . all of the above ere-”“H'hm "‘ e. none of the above 4. {4 pts) Calculate the pH of a 0.0005 M solution ofNa0H. 5. {d pts)3i]. Consider a {lit} M solution of H1403, a weak acid with Ka = 4.5 x 10“. Calculate the pH of the solution. a" 91+ Mr ' . "I, i “IRE-T ii '— '>. ' g g i: Slug (I h [P c ‘i ‘ KL . .4 x .. .oea 4%; ““3” s. {5 pts} Calculate pH efa sum}: M surmisfumaofl m H w; f:_ffi:_.._._ ...... k ......... D '1 Ci?" “i ' -,>c" __ H _. ‘55, tr. .1, ,x \. 2+“ X7” Xgiflflefi 5% ‘ ML 1'" 11%im'5' as,» 3.5 ma'ai '1 X124 pts) List the halide exyaeids (HDX where X= F Cl_ Br, I} In erder of Increasing acidic strength Explain your answer I AHLLHF Page shimsm 9+ 114; vasuw fl-Nm Tbth‘tfin‘fifii: % .3.” (6 pts} A 13. Ififl M NaOH solution is used to titrate Sill] roL offllfl'fl M HCL. Calculate the pH of the solution after 35.0 mL of titrant has been added. [Pi-3 ‘* wk Fm“) ‘“ (Usinag 5: GED? or) +335”: at) " ,oi‘lia know ... has; .— lflffl pts) A UJUU M Nafll-I solution is used to titrate MILD mL of o.1oo M Acetic Acid, “in CH3CDDH (Ka = 1.3 x lfl'fi). Calculate the pH of the solution at the equivalence point. F.— 1- ..J'" 'l I favrifir .44"; KG - PJ‘- 6% . Nd} ... Siffgrgh'h ”HF—"T __- . i a or; i “3‘ r. _ Li“. ..5. 5 ._ E".Uoflqa§' Law} N. -- i I " Polk. «r-flwihfienflii tagfiri‘fi 'X \ ... ..-......,., , IL (.35. 3 “5! i H" “H " “7‘: “3'93 ‘rlEL'ii 5.0 lotto pts] A buffer solution is ooso Min acetic acid (Ka :13 x “5—5) and don] M in findium . acetate. Calculate the pH of the solution. It Mm pts} Calculate the pH after {11 moles of solid NaGH is added to Sflfl mL of a buffer that is GAD M in lactic acid and 0.15 M in sodium lactate. {FLa for lactic acid = 1.3 x 104.) . [wk-IE kin-{315‘ ——-—-_-—-F'- a .. “a. pa: -J.a(:aw;‘t) t Laid~§9 *9 ant “b.2245 * ES H!" .16" (5 pts) Sketch the general shape of a Ill M HCL titration of a 30 mL aqueous solution ofll2 M NH] [pl-I vs. rnL oftitrate}. Identifyr the equivalence point in terms of approximate pH and mLs of titrate. i1) 147 (4 pts} Write the eoltthiIit}:r product constant (Km) expression for the slightjgrr soluble PhClg salt. ,6 MY. (8 pts} The solubility ongCI in pure water is 1.3 x 13'5 M at 25 “C. Calculate the solubility of AgCl in e CLUE M NaCl solution at the same temperature. #0 )‘i’i‘fifl pts) a student mixes lac mL eras x to3 M AgND; with tan mL of as x in-2 M NaBrflg. If the K31, of AgBrOa = as x to“, will a precipitate fonn‘i’ Explain your answer. mun wisp 'Dfi-MfiAJ ET AL EMT-rs at z Cd‘s-3 a 215 war?» gonna-3‘3 '- 1'” M9“; G 1... L? If ytaiaal [I ,l'fi'. (8 pts] A 2510 mL sample of boiler water was titrated with flflflfil} M HngUfl; until 1 endpoint which required 12 mL oftitrant. This reaction is described by the net ionic equation: Playtime} + zertaq} _,. che a] Determine the molarity of chloride ions in the sample. .r Gad-1’2. L. ; FflQ'S-D M 'I- a hp ’14,”;- M P?) P" I? “Nile- (all L 1.1315?! iww' 9'3 we r 11 yrgp“: we; is‘ a”; l 2 ”3% Yfflpgm 5"." I 13} Express the chloride ion concentration in parts per million {ppm}. " ' ‘ . or. #51- a." L..- L. L. ,..-a-""'—--—--+.-w.-n—.| 1. \ [£332. ??M 1" flfim ...
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