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AU2017/02-S-Il(A) -6-

(iii) �tom (ii) lo G:>f>.cii""'zrl 25.00 cm3 � 0.20 mol dm� HCI co8G:, 25 °C � c,�mc., tl>6m c,.c.,®t1>.0>:> c=•:ol9<4 � s:>f>.ciiec.:f pH CJ<DG:l (D,tljjz,)C.:, tl>6a:dm. (25 °C � Kw= 1.0 X 10- 14 mof2 dm-6)

............... . . .......................... ................................. ............... .... . . . ....... ......... ......... '

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............ .......................................................................... . ....................................

(� 5.0S)

(b) oOra� � MX(s) me qf>z:lf<Moc.,tl)C) 1.00 mol dm-3 HN03

etc 06®� �=q r::nd 25 °C, o(c:>Bc.,r.o®q8cca!>a1c> �sf!®c> tE:> to6m o,. <9®� qf>t1feaioc., qts� f>cg�zrl �"' !) ot.wt�S s:>f>� oa:>,�. =1,-ta HX(aq) ,ac c,eoc.,t1f �= @c.,:> 1:1>6S.(i) 1)1:0C S:>f>.cii� · oe:>Bm r.o®q8cm:> t.0«cto:> dt.O:,c.,�1:1> gB@c.:,:> 8c.,a:dm .

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(ii) HX(aq) �-�me., �aoot.01e&., wtii 00 cor::neomc., =68zrl � s:>f>6<tc..,lo cnB LX-(aq)J <D41iznc.,r::ndzrlm. (25 °C, MX lo s:>f>:oz:oo �c.,. K

1p<MX> = 3.6 x 10-7 mol2 dm�)

I I I I I I • I' t t Io t 1 1 t • I O o I I IO o I I o I I o I I o I I t I I I I I I Io 10 Io IO O I I I I I I Io I I t o Io I I It I I O IO I I I I O I I I• I I•�

· I I I • I I IO I I I I I I I I I I I• • •. • • • • • • • • • • • • •

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AI.J2017/02-S-Il(A) -7-

(iii) 25 °C' MX@ CoCltdi:n oaQ S:>f>4!mQt'D qi63 DC

(aq)] '1'5>C> (b)(ii) lil e@:, mm �a,c:,c) c:,®:,m ii qe>., ii !,m� ti c.,15) Oa> "'2:; �,:sf om�z,1m.

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················································································.···········································(C� S.OS)

4. (a} C5H

120 q1§= '190 � A, B, C CID D om qid�m:,e "lic!u:n<M:D@ E>alD c@x>d:lz:i, �. A, B e.,ID

C s=� c®:>f>Q&li:n:>e:>Q <t0tsroS.

(i} A, B f:IID C c� Bae., mtii E>,am q�mm.

B, C cm D �8= K,.Cr207 m®m gB@Q:1 � !3c> Bi�im X, Y CID Z c1�. X, Y crs> Z c.,m �eNaBH

4 c®m gB@c.o:, ii�"®m 8ij0E>� B, C CID D @oc) tn1E>i:n o8f>tri:nmc., � CDlt'D,

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q.f§:D � qia,. E ceo F, HBr t.O®i5> g63@c.o3 t11S �D "tD® H m®t63 C,Cc., c.,1�&.

(iii) B, C, D, E, F e.,i:o H @ E>am q�mm.

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(CJ:11§ 4.8 S) (b) oel)tl) � ens g.S@C-'3 q� �= Qetl)ims).

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(i) J, K � � l!o f>� oroc � qiB � �s c,�mm.

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cm> AE,AN,sE·�-Ecte= c,�� ��l!o a"3 1, 2c,roJ ",,, �= � � ��

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* lfl,f>cm!>� 2§3Qz:Dc.o NA

= 6.022 x 1023 mo1-1

necmem-dE>em

gdm � o®4lil:Sf 8� c�mm. (&2f &2f gcdmc.:ia ecM:1 15 ai@m et�.)

5. (a) NaHCO�(s), 100 •ca •� c��r::K) daf CG !)a oeoz:11 g8@c,:,!) f% C9!>.

2 NaHC03(s) � N11iC03(s) + C02(g) + "20<8)

NaHC03's) �c,t�c.mf c,68:ie) 5.00dm3 E>m .tsE)mc., 1:DS e,oE>am � eo:>dmc.,tsf qs ma>:, 328 °Cc> daf =dm e,. e,@)qac�E>c.,c> �Sl!l"9 osg NaHC0

3(s) q� g®3eiQtsf mf>'da=f a:>:idmc,c,� 1186E> Be}&. u,:>dm<9d

&>me., 1.ox tC'1Paci)f) � mmm:i e�. a,� "'86!> cnB =n s!>�� o6� �m� !Dz&, 1Dzii ci)f) coc,domc:i c,dmm. 328 °C' RI'= SOOOJ mo1- 1 C9!>.

(i) 328 °C ' c®q8.a,1:11�c> �S�"9 �a u,:,dmec::f lfl,8 "20(8) �e 9®:>-tliQ <t>eimc., c,6mm.

(ii) 328 °C ' 911>r:n e,@)qBm:i,� c«iCD:I KP <t>eimc., c,6 � Kc mdmc., !:l)tjzrlm.(iii) 11mm !)t&cd z:.11dm C(i u,:>dmc,c> 328 •c , C02(g) q®md 9®:ICliQZ:sf t>c,q c,dm e�. m®q8,c,c:,!)c::ie>

m1fl1:11 ��"9 !)a C02(g) � q:io&lc, 8£>mc., H20(g) � q:iolac, @£>me., �m S!) (4) �41iic=f �c.o. �®mafafl)c., � � COz(g) 11>:1 "z()(g) � q:io&!c, 8£>m <t>eimc, z:!ld�m.

(eq'f§ 7.5 S.) (b) 2 NaHC03(s) -+ N&iC03(s) + HzOCI) + C02(g) g8.,� c,S®a, t>mctd8 ��e,c., (AH°) 153� &®

CICifO:J 8c.x>d �c,Bm (I a.,:, m c,®td&, � �mm �=-eic., c,:,®d' c..t�eat ' s, z:!ld'm e,.

eme>o I: hdc.,z:s, qiB 1.0 mol dm-.1 Ha qee S:,!)41i 100.00 cm3 a NaHC03(s) 0.08 mol �c,q c,dm e,.c��� co6@) m>m � 5.0 ·c EW '"':ic.,:, mmm:i e,.

cs, !>m g61i8c-':,!): NaHC03(s) + HCl{aq) -+ Na+(aq) + a-(aq) + "20(1) + C02(g)] eme>o D: � qiB 1.0 mol dm-a HCI qee s:,!)-fli 100.00 cm3 a N32C03's) 0.04 mol �c,q z:!ld'm e,.

c..t� co6® 9111& aae 35 •c i:i}f) �:i mmm:i e,.

[£% €>m ea\�:i!>: N&iC03(s) + 2 HO(aq) -+ 2 Na+(aq) + 2 Ca-(aq) + H20(1) + C02(g)] HO qee �� &1:11 &>m<9d ' t)6Wa c:,c, Q:,61:1):,!) 11>:1 m� S@C9f>ez,,f 4.0 J g-1 K-1 a,:, 1.0 g cm-3c,l), 'ft!Dz:D 8c::i!)d GHi--3 ' comc,z:d � r:ns oe � o6®:i e11> � .Vmc:, ��te& !DzB @E> C�mK1mm.

(i) 9mm I a.,:, D Scxxs!)e ' cnB ea\�:i!>· �•tdS &tk:,:JQC:,z,1 (kJ mol-1 D8m) CD6m'-I z:!)(1mm.

(ii) 911>m (i) � ea>:, Cl>af q(l)QQm a.,:, cmo dcmalllcD E>raczd u,:,6mec.,m,

2 NaHC03(s) -+ NazC03's) + HzO(l) + C02(g) gB�� AH° (5)4Jimc., =><1mm.

(iii) 98.,:i!>z:D m:,c, 6c,t:Sc.,:,c,c,, q®m a,r,fr,ff)c, Q� ' �� �mmtdS CK)mc:,c) e®:>m � �s t,�ll)ffl

z:!ld�.(iv) IJU>z:D -�·,fli:,� @d:,Bg� GHi• 9eo!> e(.ad �m:><Dmm.

(eq4a 7.56.)

- 10-

6. (a) (i) 961� -=�41i f)i!) r:DE; !)c) �= {jsa,x) Di� �mctm ®m tttS Otcot�a t!l6m.(ii) c,:,®:,zs:,:i,ctc.,m �� � c.r� Dt� �.ar =i>l!>,f>t� flmatm ®m ·lits 01cot�8 aa.a

. "� � Ci=l>mm.cm> 1a= ea� "°s IS):, 4�"' � csamec., qed .Ci.,

(iv) NO+ 02

-+ N02 + 0 c.,m §a= gB@c.,:,Cl'f)&:, c@c., coli�-eictc.,li' E>amctc.,&:, CiS c,c>u,mz:lf 4�mm.

eo1�im o!>Sm cilmOm ·�· m:> DtctE)8m oVb Q}mQm 'IUl)m' ctec:, me =c:Smm.

(v) la�m:> �""me., k, too cbc>:,Stiec.,:18Si::s, co�.eii::s, x, y, t f>m xA + yB -+ zC c.,m 1)8= gl:B@c.,�Ctil:03 @p:, 9=)30:Unc., 8c.,mm.

<cl:H§ 5.t a.>

(b) xA + yB -+ zC c.,m e@@r.:1� =:,ci}• s�iim em eeec.,m c®tsmts, �& o{c;)61c.imf q)S qw:i,cm,c.,r:ndm e�. A� � "'r-.,,!o® �l) Elm qm6 B eeo C t:.,o(k5� �c.:, =o;io� 0t>41imf �ZI �.

�e:io q=d A &, f):i,:>dalc., c�m:, &>:im co�-eil:DQ, K0

= � = 4.0 ct!>.

µ:;r A t:io�c., <6=c:i& o<OBc.,c> �z:s,q z:s,6 c®q8mm:,!)c.,E> �sl®a tf> a:>6m e�. 08c:1 =c:,oc.,c> B C,oc,c.,&!,c., 1Sz:lfCNI041ic.1 (injecting) &�m 9L'i@Qx) �CD t!l6m e�. �e clH:lizsff>c., � q(!)c.,t1) oVaf!>:> <Dmm:> Q�, s, z:s,dm CCi oO'ca-lliflC gB�e OIDl:D Cidl>:i (ftal.

oO'z:lf!Nli =,:,ci)�CD di!c., � o<C&E> �=q �B q:,6h1:1i�.

qo� z:l>e:,c,ctc.,6' o6®:>E>(cm3) =s A e@>:>-t&r.:1 g®:Mllic:o (mol)

(-��) 06®:,f> (cm3) (mol)

(moldm� s-1) I - 100.00 1.00 X 10-2 1.00x 10-2 120 x 10"'5 II 100.00 100.00 1.25 X 10-1 1.00x 10-2 750x 10-5

UI 50.00 50.00 6.25 X 10-2 1.00x lo-2 150 X 10'°'1

mE>aD: I � o�z:lf•.ffoc:1 z:,:,Q)l§3i:s, i::s,e:,c,c., ctzm®t&:> � z:i,dm e�. (i) 'flD&:11 1, n m:i Ill o&if•..We ca"' �e q:,69UD A =ms41iC CDEmc., i::s,dmm.

(ii) A q,ncil(Cec.,m e@�&, ec,s .co:,c.,mm.(iii) B q�ec.,m gin�&, ctoS ctc:,c.,mm.(iv) gB@c.,:xM)&, @sc:i 1§3Q&:l)Q (D41imc., i::s,dmm.(v) ,com III oO'� A �=q t!l6 c®q8a,a,:,f)c.,c:> �sl®cl <tf> cot0'<98m oe z:t:,Q}e3z:, �m

10.00 cm3 o6®:i!)d 11fmf � me, sfi!@c.,:ict!> lpCS.ht:D � CDttn qt>z:lf g,.:s,:xD =e cotB r.? �a�a <Mtqf)/<Hfq Ci=vm.

(ezH! 5.t S.)

(c) X CD:> Y sflc.,me 819.ffoc.,d o6gts41i �= cotS<ttS. �C.:,Q cli411i!sff)c.:,zs, C,t63 CilcO mof>ltl) a,:,dmasmr qe�o 1:.11e:,oc.:i eo®I!> eo8q8afl 41B sf> � X ®� 12 m:i Y ®f:le 2.8 416 �. ·ti� D:ilio &lmc.,3.4 x 104 Pa.�. e®® c� � o.o =e:ioc.:i msm c®� 4161 se � e.,oe&,, x ®� ·l 2 � Y ®� 4.8 f>m !)i:)1 I� �o Bf>mc:, 3.6 x 104 Pa <ID . ..e® G� � X io:, Y &, eoaiedal &.Mic,Bf>m <D-llianc.:i t!l6mm.

CCJ:H§ 5.t S.)

AU2017/02-S-II<B. C) - 11-

(Cl:Qi§ 3.0 S.)

Br w

C"3C"1CHC"3 C"3C"1CC8zC"1C"3

'A B

C"3C8zC=CH C"3C"1Br .· X y

(i) �f>tg:i, c� X em Y �:> m�8m A em B �6\emc,mf Sc.,E>6 c,a,a8 (5) NIOEd> eme>d CDnilme>fllJ @@Si<9QC z:Dd'is»m ftl)ff �a eomE>mm.

(ii) CfCD,:S, � q1B A eim B eo:i8m z:D6 &f>d' tmlO (5) amer.l> ecziE>0 DiiJ1DW C COo�Q (i)S) egec.,ez:nd'is»m � �a eomf>mm.

C"3� /C"1C"1C"3

II

C"3�C"3

C (Cl:H§ 9.0 S.)

(c) (tt=cJSc! dee4dS!) rn:> NaOH qmd' gin@<.,� <-'m� Sja-; � ·��® m�m r:s,d'8m

c..em- oea

gcdm � c®.fid 8@qdt dOQmm. (�d �tsf gcd�D 8W 1S S>t@m et.&.)

8. (a) )" s:>E>�fa r:s,tc>.ic.,m a,Dd q£loC32 e!).

@ �® =rD:>c,m �® =�rn:> ca:,m cO'a:> Sc z:nd'm ��.

Ccq1§ 3.0 S.)

cCldmf) ecdw

(I) Y fa q£l:, 191:!):>c)eoci:) m� HO � r:s,c:Sm e,. ee eiqB qE>=f�d (I'.)

� P 1 ec6:> IM)m z:D6 s:>f>Ec, qgtd 8zS e}ecm<-' =6ffi c,. r:s,� 01roi8 qE>=lealoc.,d (P 2)

(3) P 2 �:, •Vm =6m c,. 8zS •e:>cf 6115@> �a,:, .cd'mC-' mc>O:>, � d .,.Q.,

SSd z:nd', NH40H/NH4CI � =6m c�. q · oc., <9m ....... lm.

AU2017/02-S•ll C - 12-

qedallom aOda:IE>

pl I. P 1 D dee., �= z:116 8� z:nOOz:n c�.--

n. 111m:11 1 s ��"' c�sg8fl 61&., � �6:J.. �dz:nc., (F 1> !O:J <9Cd•c., (RI) ®m 01:0C 0�s, c,om c�.

� CF1) • C-4@'38 FJ c) a,� HzS04 �= c,dm c� .

Ulla, (RJ) • c12gae oeec.,m R1 �m CK,�:, m�e

NH40H �ml =� e�.• 11moa, KI S:>!)4&Qd �= z:s1dm e�.

pl c�ee �= HN03

&3 P 2 Sf>Ec., c,o �Sc.,S �0 �4&c.,r:if �r:if =om C�-

P3 I. c�e co:,zrls HN03 � P

3 sD4'.liQ m1om e�.--·

II. 11ma, I C::a6eo:lf> om1:1> <ct �=q z:116m e�.

• eo:,ms HCI

• � NH40H

(i) z:s11D:,c.,m a,.D m�mm. (<tedq qf)Ql' am.)(ii) I. P1 , P2 co:, P3 q�

11. 1, 2 co:, 3 C3E>eElt9 flt14&c.,mc> eqDz:n !,<9Cdacmm�m:,mmm.

(ax.s: de:lc=3ts> � ca.d 8r.:imm.)

8Cdw

P1 lo � S04&c., �&.

'3' qDd�

R, Sf>Er.:i �&.

=<c z:11m 01a:>i61 qf>=Hcc.,d

t'IIU> 01a:>iS qf>mf<Hoc.,r:if

� 01miB s:>f>.f&Qr:if (1 c::iE>iem)

_ ,. ,_ .. ____

83d otmtB s:,f>-«&r.,d c2 c:iE>iem>

=m-�dt 01mt61 S:»V-«&r.,d (3�)

(iii) 11mz:n @ @ lo qOt'lkttlo Om z:111�c.,/z:111� q:,881:11 ®:,O:i,ec,1 � qf>tlfatalo •tl)Of)mGtm @m cilS� 01mi�a z:116mm.

(eq-41§ 7.! S.)

(b} c:,zn C038oec.,= (NH.J2S04, NH4N03 e,m g61@c.,:>@8 •ZS):>f)m sfl:i, qe)o� @fl <K,:,c.,:, «>mm:, e�. ct88

t.038c,e� qi<N>��c.,8 ef>.ei �"' � � =«cco:> =me � qiS �i�s �:, mmm:, e�. aom �� 1.00g � dectd sf)4lic., c,o 250.00cm' � �6.1= � qs � c,dm c�. (8'm ergs s:,f>4iic., <9Cm mt��.) � 1

s �E�m so.oo cm3 CKme)c:,=f e@e m36GOZ:D (NaOH) Dt�ecS � co@)aJ. S&,e c,o �md � E>:>mE) 0.10 mol dm-3 HO 30.00 cm3 qsD cof>m e�. '161&> qiS HO c�m &@)c) (A•m�m ��t'DQ �= �:, m�8m) qf>a:u, � 0.10 mol dm-3 NaOH o6@)x) 10.20 cm3 !3c.o.

� 2 S S:,fl.f:li'9Qm 25 .00 cm3 CK'Sl:,c)e,tw Al � " 'ttdoa e@e tlfa:,6Qz:s, Di¥ es� <c �q c,o 819-«&co oaf m><Sa:s> e�. ��110t4 � 8JQaE> O.lOmol.dm-a HCI 30.00cm3 �c> c.,Oa:s, c�. �660 qi.S HO c�:iStn BtS@>D (A•m:»ddm8m �tsGil=c �= �:, m63em> qoau, f;l 0.10 mol dm-a NaOH o6f):,f) 15.00cm3 &. (CIIQ: SO®d cfil<c38 co:>& �m 1 =m 2 �sto � �@ � 'its c,&a:, c,oa,, e�.)

Ci) @c.,:,Si�s 1 &3 �110t4 � � io�mz:n. (ii) @�<H)s 2 ta �� � � i:o�mm.

(iii) @��S 1 ca> 2 lo � s, Om eS@a,:, C'i!0:1 qBz,:, de.,:,c.,�m mh641i 8c.omm.(iv) c:,a:s, c.,38ooec4 qiB (NHJ

2S04 =m NH4N03

G)t,) a.,J �= eooe9Q:k>� mmcJ galma,c:, 11>4&mc.,t116mtn. CH= 1, N = 14, O = 16, S = 32)

(er:;� 7.!S.)

AU201'1/02-S-Il C

9. (a) ca:,c, (imfE):i qiBI m>:>t18r:n @al:,!)e ccr:nmm.I. !)dodm � eWe:i�mc.,

II. =tdS� �!) ��:mc.o

ID. �b i§W�mQ

- 13 -

IV. e,d8sg6d c,Se �lll�mc;., (edctsm ,a®c.,)(i) c)Zllf c)Zllf @c:l:iE>e� � a,:,!)c, r:ndm q:>demr:n ,v:c C.,«ta:>zrl r:nC:Smm.

(ii) q!:>CD:C mtm!lC � �t9 � C'cll>m �zrl � c)d @c:,� � !>m gS@c.,:, '-'fim!> � �63z:s,�64.li Saimm.

(iii) oa,c, c)Zllf c)af � C.,fia:>3 9ec:Jdm -:o @t,@zrl '-'fil:Ozrl r:ndmm:

!,6oom �. =idSaie =:>@S!), �6co:, co:, ec:!Aa&sf c,SecCe� 7.5S.)

(b) � !)c.,m er>3G:lmc., (OlD), <t<D:f8c., �@® (GW) too q9e E>tS (AR) �� , c,o � �m 9'):lmo:i6e,6z::, <Dtc>g •!>. Otoe> �d.Om gotm o6=6c., C!O �e> �de!:>m CD1Dg eo:, e9am0 c.,.

(i) m,:,cilm e!O m�zrl £>,a 06� @c,xsf®m Elm Dt�«Dtlt de.,:,c.,�m £>,a 0�r:11Zllf <!tV.I. tD:i@zrl £),ac., c9am� oeoc c)af c)af �Ea �m cx>Blm 9cJ:,m q:,r:i,:,d � @t@m =«c10m

r:i,dzrlm:£):,a«-m:fe<td, �==E>e, oe�Ea. oea!) �.

II. mSgom E>�Ea �CK>:fe<td qiBI N2 E>:JSE> ci,Elttf !)® tbe0 985:1tfE � S£, Om�m MD� �S�m CCceDM r:ndzrlm,

Ill. z:s,:i@m €>�� d�s �!)m mi:oa,:i@ Om c,:=:id � e'ctom z::,dmm. (ii) qee !)iS qiBI !)®c;> (i3C.,m) Om E>:,a<IC!>:feC9<4 �ts) mSgdm q£>o'\} ecJ:im Co(!tc.,:fm � CD�tm,).

� dc.,:,c.,m e� q�m eM mo� DtS deco q:,SSm, r:nd•m � �a ct0�tsfm.(iii) �tom c«cl:!l)zrl ed ed o:16co6t1> m1c>goa (OLD, GW, AR) (i3"'r:n Om 1:11�8r:n @c.,:it:>S ai;m IJ&maS

i:o,m:>CDmm. eS® ed at r:n3'18r:i, @c.,30Sc., ®@m D:isg�c.,c) �(i:>intedm at dc.,:,c.,�m, co��CDc.:lz:sf@t@m i:opn3CDzrl2'l,

(iv) dec.,c> e:11:!1) oe,c> � e:10� � !)®a eo1c,Sk., sq q�8m �:,c.,r:11 vm ecJ3m =� �B"'CD�:>l!>mm. 19®® mol9Q:JCD oe0D 11>3 oeoc> qiqd Dm ®�CD c.,9g)mQ£) q�coe4 �afVmm.

(v) 8•e>:i�de S(00 Dt� �£)mEl m3(!)6i:i, ODz» qc,sD:c @ctOtd BO® �IS)m '-'fiCDM o36e6r:n 9o1mqemm c)r:i,r:nc) e:11eSc,, el:11 �:,c.,mcf!>c.,Zllf �td!>S. c)® c,:,6c,61:S) 9cdmc., CD�ffl:><!HDm q,a®Dt51 <9CemOCD6= oom c,c,sD:c @it0t6 BO® q� o:i6c6c, gcdmc.,c> �:,c.,r:n o•m et!)� �a C!C&c.:im CICca:>Mtndmm.

(cqi§ 7.5 S.) 10. (a) (i) TIC� '-'2n e:i �- ott0tS c:imc.:,B. de�� � A eo:1 B m9 TiCl3 Ea c.,oemc., � !)<Nf• �d e:ite9(i8.

A e,a, B Q'i} "10 CD:> er Sl!>m c,£>� c,lllc>c,8c.:, d:c:,®Bcod �C) aae0�0e� C,o(Dm C,o�CD. c,!:), A io:, B e!>m r:n6 d�e od� eoeBI �.f&c.:, r:ndm e,. oeom c,«cinm @0:iS@e!>s a:,:,!)c, r:n6 C,oeQ:fCD cv,crocf &f�.«,Q r:ndm e,.

Am !lac,faem A� 020 mol dm-3 9f)41ii0Bm 50.00 cm3 c> Dt�g6 AgN03(aq} � t:S)� t,e> i:ntnt:S) ttt<B®��c.:i, � �:>€>:is � ott0t8 qDZllfHoc=f �&. c,E>d<Moc.o CKl�o, c,mr:1> c,!)g !:)c, (�c.,c, cir:i,zrlQc.,tsf et<f@m �t) t&z::,mcJc.:, 4.305 8 &. BS, �,�a.em B � 0.30 mol dm-3 9f)4Jic.,Bzrl 50.00 cm3 D f)i!)gd AgNOiaq) � tDS !)c) A e &;Sc,(!194Ji,9d ' ete-'9 a, Cf� ® CtS&, qE>deaioc., ��:,, c,mr:n �Cl !)c) (�c.:,c, dr:nmOc.otsf et�m �di) e'IS"l§ edr:1>zsfoc.o � 4.305 g !)c.,, (H = 1, 0 = 16, a = 35.5, Ti = 48, Ag = 108) 1. A eoo B e , 00.0�c.,ee ctee=<9Qd�= !)zn:i:,:ie,c., Sc.,mm.

II. A eoo Be £)�in qec:f1Dmc., r:Ddmm.III. A a,:, Be IUPAC ml> i9Nimm.

AU2017/02-S-II C - 14-

(ii) X, Y too Z c.,� M(Il) �:Sa, qc.,m@c.,� Co(DC) C:OoeQ� �. C,&.,c;) mac., c:o®c>qde:,=36 d:i,:,8Sc.,m qim.

(b)

X C�:>Sm COo<9C.m>C.,i!it Y � d8c., �41i,c.,t!K) Ba�(aq) �d =s !)e) D. 49ef>e 4s:>c):i, e, OtfDtSqf>mtic,c.,mf et<9&. o{!c., s:>� , z qc.,tn qm=f eci:> �s •

. omm � q1S etSc1qC9!)� e,e � c»m:fd:> m�8m X, Y m:, Z � f>Btn s,a .(!c.:,mm.

K+. NH3, CN"", sot

Ag

= -_ -_ -_ -_ - -�-..... -=-+---1---Ka (1.0 mol dor1)

Pt

AgCl(s)

filtnm dto ce>co<l'm eozrlf>:, qiS � !)�cf dc:,c.,� <Kn:Sac.,d t:l:Wi:> qim.

omm �m c:ooc.,:, qim.

Ag(s), AgCl(s)' I Cr(aq)

Hg(l) I H8J�(s) I Cr(aq)

E° = 0.22V

E° = 027V

Ci) fll!llm •=-� @dSCDCSei 4tso sS@c.,:,E:> a0mm.

(ii) 'i'a,a, � @dS=dcli qtso eS@0:,c) Bc.omm.

(iii) •=• eS@c.,:>c) (N):)£)mmmm ..

(iv) � qiS E° q(Dc.,c.,m �� � � <D:>®tD Ea)ec.o <D41imc., z:.,,dmm.

(v) filtnm !)r.,az:if 6t.,:,c.,6lm, -=-� coe®m ('!!m �04!itc.o <9<i!rlm.

(� 7.5S.)

(vi) � � d� �� � <D:>®1:1> @cc., � qc.,m �.., ®m �· �? �SiqcS ='c!ll:> �!>/� �mfE>mm.

(vii) 0=:f•�mO.lOA� Q:,d:,f)d !)in:>!) 60= r:s,:,ec=J qs � eci:> mz,J !)e> Ag(s) +AgCl(s) mmc.r.,� �� <K>m= (!)41imc., t!ldmm.

(viii) �!l)C) (vii) � c:):,6:,f) eci:> <Dz:sf oe s:>!>41i�� z:sbe:JdS6:> qc.,m =mselic., q®d !)c.:, !lltli ti?

(C">td<!t!) �c.,. F = 96,SOOC mo1-1, Cl = 35.5, Ag = 108)(ez:141! 1.s a.>

***

AU2017;02-S-II C

1

2

3

4

5

6

7

,---

B

3

LI

11

Na

19

K

37

Rb

55

Cs

87

Fr

4

Be

12

Mir

20

Ca

38

Sr

56

Ba

88

Ra

21 22

Sc Tl

39 40

y Zr

La- 72

Lu Bf

Ac- 104

Lr Rf

57· 58

La Ce

89 90

Ac Tb

-15-

23 24 25 26 27

V Cr Mn Fe Co

41 42 43 44 4S

Nb Mo Tc Ru Rh

73 74 15 76 77

Ta w Re Os Ir

105 106 107 108 l()IJ

Db S1 Bb Rs Mt

S9 60 61 62 63

Pr Nd Pm Sm Eu

91 92 93 94 95

Pa u Np Pu Am

2

Be

5 6 7 8 . 9 10

B C N 0 F Ne

13 14 ts 16 17 18

Al Si p s Cl 'Ar

28 29 30 31 32 33 34 35 36

NI Cu Zn Ga Ge As Se Br Kr

46 47 48 49 so St S2 53 54

Pd A1I. Cd In Sn ,Sb Te I Xe

78 79 80 81 82 83 84 85 86

Pt Au Ila TI Pb Bl Po At Rn

110 111 112 113

Uan Una Uab Uat ...

64 6S 66 .67 68 69 70 71

Gd Tb Dy Bo Er Tm Yb La

96 en 98 99 100 101 102 103

Cm Bk Cf Es Fm Md No Lr