NAME _ DATE PERIOD 1,.)0 _ _ rt~. Chapter 18 Acids and Bases Test Review Remember to show your work and units. You can take the Chapter 18 Acids and Bases Test in pairs and both of you may bring a 3xS card (front and back) to use as notes. The only thing I will give you will be a Periodic Table. If you choose to take the test in pairs you will complete the same test and receive the same score. Questions #1-10 are TRUE or FALSE.Write True or False on the blank next to each question. 1. Fa J ~ e The name of the process that measures the amount of a solution of known concentration required to react with a measured amount of a solution of unknown concentration is called a neutralization. t..\-nt~Oh 1 2. fa l~e If [OH-] > [W] then the solution will always be acidic. \ 3. YQ\ <;'C Bases react with salts to produce acids and water. \ 4. r:tlIse An electron pair donor is an Arrhenius base. \ 5. \ 6. I 7. -ffUe,., lrUfJ \ 8. 1[1A.e/ \ 9. 1fU& r~1St!- TN e. g~e~ relic} /)J I a c/d.r le-ns btl.{e When a solution has a large Kb value it is said to be composed of a strong base. The equivalence point is reached when the number of moles of Ware greater than :Jt. /Ylo/e"" tf+ The greater the concentration "Dh~ :; j}:: mO)~j 0#- /o~ of buffering molecules or ions in a buffer solution the ---12- Which ofthe Choice. Write A, B, C, or 0 on the blank next to each question. following is the equation that relates pH and pOH? a. pH + pOH = 10 b. pH x pOH = 14 12. A Which of the following ~ pH = -log[W] b. pH = log [W] 13. A Which ofthe ® b. 4JlJ An example of a weak base is an amine. Questions #11-30 are Multiple 11. prt:till(e- Both acids and bases can produce an electrical current. greater the buffer capacity. \ -10 Clt,cis Bases tend to taste bitter and feel slippery. the number of moles of OH- ions. 10. g~I'6 following poH 10- = [OH-] = 10-pH [OH-] c. pH - pOH = 14 OPH + pOH = 14 is the equation used to find pH? c. pH = 10[H+] d. pH = -10[H+] is the equation used to find [OH-]? c. [OH-] d. [OW] = 10poH = 10pH wa·h~y- \ 14.l I'r;Y W'hich of the following is an acid? c. a. Baking soda (6) Soda 15. _\7_ Which \ d. Soap ofthe following is a base? a. Stomach acid c. b. Coffee \ 16. A Which of the following @ Drain cleaner Grapefruit juice @Milk of magnesia (Mylanta) describes a strong acid? Ionizes completely c. Small Ka b. Produces OH- ions d. Large Kb \ 17. -A-In the reaction represented by the equation HCl03 + NH3 ~ NH4++ C103-,the conjugate base of HCI03 is: Q~-e C.01l ~Y)~. tA~~' 0 \/\ ~l<'.e Add G , C103- ~ • 19. ~ 0.2984 b. 0.5133 20. L X 10-6 (!) ~ 'J. M -;vl V t A- ~ 8- What is the OH- concenfration 2.5 X 10-2 M "r.-..I JJt \/0 ~ 22. ~ . . pair 23. Ctt1J Glo3- JJlJ.J} ~ Ltl-30tJ J 0 'r~ M 0.460 M d. 0.620 M [O.OO'ls7l-) -A- A chemical ftr/ c. 8.9 x 1O-2M d.1.0xl0-1M . se aac; (9 d. reaction can theoretically J Dl}-::;-}t/ h fo :::: [oU-.... ];::- /,, ){)_pO)t 20 ~ H3Q++ F-, a conjugate acid-base In the reaction represented by the equation H~t IS: "-I" of a solution whose pH is 12.40? a. HF and H20 b. F- and H30+ \ 7.6 X 10-5 Qt\ O"luiJ b.4.4xl0-2M \ pH~ -}/)8 J' I \}610 J AI\} x 10.1 M? 3 of a solution whose pH is 4.12? c. 6.4 X 10-5 M [t+-'~Pf)~ M J ;t1,4"'k:::,MO VB 21. ~ is 5.03 IfV' r- What is the molarity of an NaOH solution if 4.37 mL is titrated by 22.2 mL of 0.0904 M HN03? h~t a. 0.230 M b. 0.355 M \ NH4+ c. 1.542 d. 5.031 What is the hydronium ion concentration a. 4.4 x 10-8 M b. 5.1 \ C. b. NH3 d. HCI03 What is the pH of a solution whose hydronium ion concentration , 18. ~ \ 1 ~uv COli .•• Pu.. i((~ COIU~. 'bfX~e }ti/,' H30+ and H20 HF and H30+ H-zp r'" I~:~o+ produce 137.5 g of product, but in actuality 112.9 g are produced. What is the percent yield for this reaction? <!) 82.1% c. 24.6 % d. 17.9% b. 62.0 % \ 24. R Which of the following is NOT a diatomic molecule? a. Fluorine b. Nitrogen \ , 25. ~ c. Bromine ®Boron il \\ 1;){1-"'-Z. O-z,)'Y'L,N1.Je.,'1-) The substances produced when KOH(aq) neutralizes HCI(aq) are: ~ a. HCIO(aq) and KH(aq) )L--r(S1\~hO(l) and KCI(aq) v7b. KH20+(aq) and Cllaq) 26. D;crlOJ)1ivC ~ _D_ Which of the following is chlorous acid? a. HCIO -h'l fDC,h/orOIilS QU L!9 HCI02 -(,~\(}nJLtS d Q(';a d. H30+(aq) and KCI(aq) C. HCI03 - d. HCI04 - VtV'Lh\b(,"6 en l., ri L (1U J a« d <- \ 27. --12- /l~Y Two members ofa conjugate acid-base pair differ by a: a. Water molecule c. q) Proton b. Hydroxide ion \ 28. ~ i» Which of the following is a polyprotic acid? Sulfuric acid \ 29. IL \t,,SO,,, b. Hydrobromic --A- What c. ~B( acid d. Ammonia + 3NH4CI c. b. 3NH4Fe + CbOH 30. L Hydroiodic acid 3NH4CI + 3FeOH ~~ = = c. Kw [OH-][H20] Kw [W][OH-] ~ ~ Questions #31-40 are Short Answer. Answer each question as completely -d 31. What are the 6 st ong basesi fD "'40\-\ S I U~ (Yy.,o~ pO+().S~d)P1 (JroX' G;CtA.lOl+}z ~} l$A 32. What is the hydroxide ion concentration pH-+pD.fI--14 pO}}:::. ?O~~ )4- p 11 c. D# (f) e hyJ(7))(ide3 \2.l,o.u rub \Jju~ ~yJrox.;de of a solut~ as possible. U\... ~~~ .•.,\ (I.()x/D'1) 0,0,<10 J -II/ -:., J 0 X ,I) ~yJ roxide ctlki\t~ yd-rox.,-de cesil) »1 bA( H-1 M (o-»-) Yo)(,cl-t that has a p1-1of 8.570? [Dtr)::. 5,~"3 .-(p LO\\-}-:.1,1'lX)D \{)_pO\} [G}rJ ~ JO/5.~5 IV' ? 0 ).f- -;- ) "/.,, q,;-1 0 33. What is the hydronium ion concentration pll- +pDH z: /'1 pH-::; J'I- P oil- P i+~ 14h 34 . Write tea .... b 1-11 ' of a solution that has a pOH of 4.120? pl!~ 9, gg »:". fHsD"-J::: l?d·IOnization .. /I) ~ . equation an d acid i ~ . t . f it . id aCI Ionization constan expression or m nc aCI . H-3 o " rdfJ) -i: ;V03- (/1'(;) O+~O.fJ[pl?]-] It: _ [HAlOs] 35. What is the molarity of a nitric acid solution if 43.33 mL of 0.1 M KOH solution is needed to neutralize 20.00 mL of the acid solution? AA fAmtloh IY'A ~,A~\]~ ---- \}A ftl}c\)" :;..M~"R rJ\ =. ((),\M)LD .D~?'33~) !V1A=: ./ b V A t- 00 ~ L, '"J M~~ -:.- D..OLD L- A - D I 01.-b l> I 0.1 M q pts, "ts ~ Li3,-; ~ J., L -:.0, 0~S~) L MA: D, & t l ;Vl )0 [J.}3()tJ 7-L~Zx/D- [If. ot] _ /0 ~q.g( ance #}J6 tllf;) t: ~O 3 Q -- \ .t O~ .•• Which of the following is the equation for the ion product constant for water? = x, = \ N\+-J (ba.(e.) d. 3FeCI3 + NH40H a. Kw [H20] b. [H20][W] \ rrJ: are the products of this double replacement chemical reaction? FeCI3+ 3NH40H ~ <!)Fe(OHh \ Hydronium ion ,Nl 36. Complete the following table. Show your work! \ [OH-] [W] [oW;) :;.10' 1.53 x 10-9 M pH 0 s.n ?H-~ - )V I.tra pH ~ /L-J - pou4.12 x 10-2 pH~ 1t. 61 M (0-»-]:::; IO-'CJ '~x10- Is it acidic, basic, or neutral? P-i- P »- gQ~i G »o~-:-~. 1<& fO#-~-!J1[Ofr] '? D -; \."1P, BLL~ "J,5 11 3.75 ", y() pH-~'l1-S. 4j~ PIf =- 2'. S-S[P1l1 5. 5£'XIO-llIJ AD\~\(; -;.\~.be; fo?!:] -= /0 -5.'15' 1Jl~=1.<lZx/O~ 10 fV-» ~ ,,, ...'!,.1~ 1 f~~J: I.7!x iD~ roW] ~s: [wtJ.:: /o-ll·~~ y()tr~ ~)+-;.. ~.~-Z IOU:] :; h.~ I 'AIO-6)1f [JI-rJ.; 10- n.s I Dfi] ~ 2. 'Ibx/o -13A1 [jf-+] = /D -~. 7~ pOH fbasi0 5.45 7 37. Acid and Base Models. Complete the following table with the definition for each of the models \ for acids and bases. The first one has been completed for you. Acid Definition Model Arrhenius Bronsted-Lowry Lewis Base Definition Wproducer OH- producer frotol"\ (h~ ~ro~t.,jcm).cl\)Y\o( \,ro\b" (~iUro6!";011) OLltr-or tl-t~n fa;r D..aepto;- ~ )et,-hoh po.~r dOhtJr 38. Le Chatelier's Principle Review. Complete the following table by writing left, right, or none for \ the equilibrium shift, and decreases, increases, or remains the same for the concentrations each reactant and product. 1, yno \ 2H2(g) + Stress Add 02 Remove H2 Add H2O Decrease pressure JAlf~(1).. tt')\e~A d.S " tempera 1t1ure Increase Equilibrium Shift ~'~~ L~ l£J~\ l~K\ ltK> 0 l"0 \ 8~ 0-) (g) ~ 2H20(1) + Heat [H2] x x ::r:-hL(elt~e( -rhU~QJeS ShLrtLl ~)(o\,h€ f)'Y\; G [02] Dee rett(e5::> ses tn(;(eLl\ e 5 of [H2O] :rh(,rtlL~ei. DeL(ttL~eS X ::r::n «e tl {e S ;tn.l-reo..~e~ \lttfeiA.le; -tnlf't£L~eS S 1) eL(tCL~e,s 39. Stoichiometry Review. Determine the mass of sodium chloride that's produced when 88.63 g of chlorine gas (Clz)reacts with sodium. C\1- to) t'2-Na. CD ---}- \ MolarhJOJS C}z -;:: 2 (3E;;'Is-. /",./)-=70,{-\ Mo lar i'I1tlJ( JJa..U -;;~1.qq ~~o ~t.(p 5'1 CJ2, 1m CIz o 70. q~ Liz b/ • 1-1-- 3~ 'l--- rhO l N 2 Na 61 a) &'1»,,1 '-I~(J/hD/ ~ 5/5',¥tf;-//kO / «t , ,I)no \ 01. 0', LJI/ 8 IV a. (,/ ) rno IAlItGI ." 1~h, II }:t No- C I V 40. Naming Review. Complete the following table. \ Compound Name COp pe r (j:t) Su l+tt.Je Compound Formula CUS04 CIAz+- 50LJ2- Is it ionic, molecular, or an acid? -:r:on ,'V Potassium nitrate ~+- /JDi Silicon trioxide ft AJO] j:D 11" 0 S ,'°3 ;v1o /.ecu fa r N04 ~;:ho8tn t-Q,~xide Sulfuric acid \+z,SO~ p/Jo )ectJ la» AL,cl
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