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S 1Cu 1 (2 im) Hon thnh s phn ng sau: KMnO4 Cl2 NaCl Cl2 FeCl2 FeCl3 Fe(NO3)3 Fe(OH)3 Fe2O3Cu 2 (2 im) Nu phng php ha hc nhn bit cc cht kh cha trong cc bnh mt nhn sau: SO2, CO2, H2S, O2 v O3.Cu 3 (2 im) T nguyn liu ban u l mui n, qung pirit, nc, khng kh (iu kin c ). Hy vit phng trnh iu chnatri hiroxit, nc Javen, st (II) sunfat, st (III) sunfat.

Cu 4 (1 im) Cho cn bng ha hc: N2 (k) + 3H2 (k) 2NH3(k) 0H 0.

c. N2(k) + O2(k) 2NO(k) H < 0. d. CO2(k) + H2(k) H2O(k) + CO(k) H > 0.

e. C2H4(k) + H2O(k) C2H5OH(k) H < 0. f. 2NO(k) + O2(k) 2NO2(k) H < 0.

Cn bng ca phn ng sau s chuyn dch v pha no khi:+ Tng nhit ca h. + H p sut ca h . + Tng nng cc cht tham gia phn ng.

Cu 5 (3 im) Cho 12g hn hp hai kim loi Cu, Fe tan hon ton trong H2SO4 c,nng, d thu c 5,6 lt SO2 sn phm kh dunht ktc v dd X. Cho KOH d vo dd X thu c m gam kt ta, nung kt ta ngoi khng kh thu c a gam mt cht rn. Tn% theo khi lng ca mi kim loi trong hn hp? Tnh gi tr ca m v ca a?

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Cu 1 (2 im) Vit phn ng th hin s thay i s oxi ha ca nguyn t: S0S-2S0S+4S+6S+4S0S+6

Cu 2 (2 im) Nu phng php ha hc nhn bit cc cht bt mu trng sau: BaCO3, Na2CO3, NaCl, Na2SO4, CaCl2 v KNO3Cu 3 (2 im) t chy ht 1 g n cht R cn dng lng va l 0,7 lit O2 ( ktc).a/ Hy xc nh n cht R. Vit cng thc phn t v gi tn hp cht to thnh.b/ Trnh by tnh axit v tnh kh ca hp cht . Vit cc phng trnh phn ng minh ho.Cu 4 (1 im)Nn 2mol N2 v 8mol H2 vo bnh kn c th tch 2 lit(cha sn cht xc tc vi th tch khng ng k)v gi chonhit ko i. Khi phn ng trong bnh t ti trng thi cn bng, p sut cc kh trong bnh bng 0,8 ln p sut lc u(khi micho vo bnh, cha xy ra phn ng). Nng ca kh NH3 ti thi im cn bng bng bao nhiu?Cu 5 (3 im) Ho tan 10,54 gam hn hp X gm Cu, Mg , Fe bng mt lng d dd HCl thu c 4,48 lit kh A(ktc) , 2,54 gamcht rn B v dd C. C cn dd C thu c m gam mui.1. Tnh phn trm khi lng kim loi v m.

2. Nu dng H2SO4 c, ngui ha tan hn hp X th thu c bao nhiu lt kh SO2 (ktc)? S 13

Cu 1 (2 im) Hon thnh cc phng trnh phn ng sau:KMnO4 + (A) (B) + (C) + Cl2 + (D) (B) (E) + Cl2(E) + (D) (F) + H2 MnO2 + (A) (C) + Cl2 + (D)Cl2 + (F) (B) + KClO + (D)

Cu 2 (2 im) Bng phng php ha hc nu cch nhn bit cc dd mt nhn sau:Na2SO3, Na2CO3, NaCl, MgSO4, NaNO3.Cu 3 (2 im) Ho tan 6,7g oleum vo H2O thnh 200ml dd H2SO4 ; 10 ml dd ny trung ho va ht 16 ml NaOH 0,5M.

1). Tnh n. 2).Tnh % ca SO3 c trong oleum trn.3).Cn bao nhiu gam oleum c hm lng SO3 nh trn pha vo 100ml dd H2SO4 40% (d = 1,31 g/ml) to ra oleum chm lng SO3 l 10%.

Cu 4 (1 im) Cn bng phn ng CO2 + H2 CO + H2O c thit lp t0C khi nng cc cht trng thi cn bng nh

sau: [CO2] = 0,2 M; [H2] = 0,8 M ; [CO] =0,3 M; [H2O] = 0,3 M. Tnh nng H2, CO2 ban u.Cu 5 (3 im) Ha tan hon ton 5,65 gam hn hp Mg v Zn vo dd HCl 2M thu c 3,36 lt kh (ktc).

a) Tnh phn trm theo khi lng mi kim loi trong hn hp ban u.b) Tnh th tch dd HCl 2M dng.c) Dn ton b kh sinh ra trn i qua ng ng 16 gam CuO, un nng. Tnh khi lng cht rn thu c sau phn ng.

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Cu 1 (2 im): Thc hin nhng bin i ha hc sau bng cch vit nhng PTHH v ghi r iu kin ca phn ng, nu c:(1) (3) (6)

H2SO4 SO3 H2SO4SO2 (4) (7)

FeS2 S SO2(2)

(5) H2SO4 (8) BaSO4

Cu 2 (2 im) Nu phng php nhn bit cc kim loi mu trng sau: Ca, Al, Mg, Fe, AgCu 3 (2 im) 1. Ho tan 33,8 gam oleum H2SO4.nSO3 vo nc, sau cho tc dng vi lng d BaCl2 thy c 93,2 gam kt taXc nh cng thc ng ca oleum.2. Vit cc phng trnh iu ch HCl trong phng th nghim v trong cng nghip.

Cu 4 (1 im) Cho phn ng thun nghch xy ra trong bnh kn: CO(k) + H2O(k) CO2(k) + H2(k)

Ban u trong bnh ch c CO v H2O. Khi phn ng t n trng thi cn bng th [CO] = 0,08M; [CO2] = 0,12M v hng s cbng KC = 1. Tnh nng mol ban u ca CO v H2O.Cu 5 (3 im)1. Ho tan hon ton 8,3 gam hn hp X gm Al v Fe trong dd HCl (ly d), thu c 0,25 mol kh H2.Vit cc phng trnh phng xy ra v tnh khi lng mi kim loi trong hn hp X.

Nhng ngy u H 2013 thi th Ha 10 HK2 Trang4/13

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2. Ho tan ht 8,8 gam mt mui sunfua (c dng MS, trong M l kim loi c s oxi ho +2 v +3 trong cc hp cht ho hc) trondd H2SO4 (c. nng, d), thu c 0,45 mol kh SO2.

Vit phng trnh phn ng ho hc xy ra v tm cng thc phn t ca mui sunfua.

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Cu 1 (2 im) Hon thnh cc phng trnh phn ng sau:Mg + H2SO4(c) (A) + (B)+ (C) (B) + (D) S + (C)(A) + (E) (F) + K2SO4 (F) + (H) (A) + (C)(B) + O2 (G) (G) + (C) (H

Cu 2 (2 im) Bng phng php ho hc hy phn bit cc dd sau: NaCl, BaCl2, Na2CO3, Na2SO3Cu 3 (2 im) Hp th hon ton 6,8 gam H2S vo 250 ml dd NaOH 1M. Tnh khi lng mui to thnh sau phn ng.

Cu 4 (1 im) Cho phn ng sau: H2O (k) + CO (k) H2(k) + CO2 (k).

7000C hng s cn bng KC = 1,873. Bit rng hn hp ban u gm: 0,300 mol H2O v 0,300 mol CO trong bnh 10 lt 7000C.Cu 5 (3 im) Hn hp A gm Cu, Fe. Cho m gam A vo dd H2SO4 long d thu c 4,48 lit kh (ktc). Cng m gam A cho vo dH2SO4 c, nng, ly d 10% so lng cn thit c 10,08 lt kh SO2 (ktc). Cc phn ng xy ra hon ton.

a. Vit cc phng trnh phn ng xy rab. Tnh thnh phn % khi lng cc cht trong Ac. Tnh khi lng FeS2 cn thit to ra c lng axit c trn bit qu trnh sn xut hao ht 20%.

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Cu 1 (2 im) Vit phng trnh phn ng v nu hin tng:1. Sc t kh SO2 vo dd KMnO4.

2. Cho mt mu ng vo dd H2SO4 c, nng.3. t kh H2S trong iu kin oxi thiu.

4. Nh vi git dd phenolphtalein vo dd NaOH, ri cho dd HCl n d.Cu 2 (2 im) T mui n, nc, H2SO4 c. Vit cc phng trnh phn ng (ghi iu phn ng nu c) iu ch: Kh Cl2, H2SSO2 , nc Javen, Na2SO4Cu 3 (2 im) Cho 32 g hn hp Fe v FeS tc dng va vi dd HCl 2M. Sau phn ng thu c V lt hn hp kh A (ktc) v dB. Cho hn hp kh A i qua dd Pb(NO3)2 d th thu c 71,7 g kt ta mu en.

1. Tnh khi lng cc cht trong hh ban u.2. Tnh Vdd HCl dng.

Cu 4 (1 im) Cho 2SO2(k) + O2(k) 2SO3(k) + 44 Kcal. Cho bit cn bng ca phn ng chuyn dch theo chiu no khi:

1. Tng nhit ca h.2. Tng nng ca O2 ln gp i .

Cu 5 (3 im) Ho tan hon ton 11,5 gam hn hp Cu, Al, Mg vo dd HCl d, thu c 5,6 lt kh(ktc) v phn khng tan .Chphn khng tan vo H2SO4 c nng, d thu c 2,24 lt kh (ktc).

1. Xc inh khi lng mi kim loi trong hn hp.2. Nhn bit 3 kim loi trn bng phng php ha hc

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Cu 1 (2 im) Vit phng trnh phn ng khi H2SO4 long v H2SO4 c nng tc dng vi cc cht sau: Fe, Cu, FeO, Na2CO3.Cu 2 (2 im) Ch dng thm mt thuc th (khng dng cht ch th mu), hy nhn bit cc dd sau: natri sunfat, axit sunfuric, natcacbonat, axit clohiric.Cu 3 (2 im) t chy hon ton 12,8 g S. Kh sinh ra c hp th ht bi 150 ml dd NaOH 20% (D = 1,28 g/ml). Tm CM, C% ccc cht trong dd thu c sau phn ng.Cu 4 (1 im) Phn ng thun nghch: N2 + O2 2NO.C hng s cn bng 24000C lKcb=35.10-4. Bit lc cn bng, nng ca N2 v O2 ln lt bng 5M v 7M trong bnh kn c dung tch khng i. Nng mol cNO lc cn bng bng bao nhiu?Cu 5 (3 im) Mt hn hp A gm Fe v mt kim loi M ho tr 2.

- Ha tan hon ton 12,1g hn hp A bng H2SO4 long th thu c 4,48lt kh H2(kc).- Ha tan hon ton 12,1g hn hp A bng H2SO4 c nng th thu c 5,6 lt kh SO2(kc).

1. Vit cc phng trnh phn ng c th xy ra.2. Xc nh kim loi M.

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Cu 1 (2 im) Hon thnh s phn ng sau:FeS H2S S Na2S ZnS ZnSO4

SO2 SO3 H2SO4


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Cu 2 (2 im) Mui n b ln tp cht l: Na2SO4, MgCl2, BaCl2, CaSO4. Hy trnh bi phng php ho hc loi b tp cht, thc NaCl tinh khit.Vit phng trnh ho hc.Cu 3 (2 im) 1. Cho 0,015 mol mt loi hp cht oleum vo nc thu c 200 ml dd X. trung ho 100 ml dd X cn dng 20ml dd NaOH 0,15M. Xc nh cng thc oleum v phn trm v khi lng ca nguyn t lu hunh trong oleum trn.

2. Cho 10,8 gam kim loi M (ha tr III) tc dng ht Cl2 to thnh 53,4 gam mui.Xc nh kim loi M?Cu 4 (1 im) Trong bnh kn th tch 1 lit , t0C c phn ng phn ng thun nghch sau: CO(k) +H2O(h) CO2 + H2 , Kc=1Nu nng ca CO2 v H2 lc cn bng l 2M. Hy tnh nng ban u ca CO v H2O, bit rng nng ban u ca CO b hnH2O l 3MCu 5 (3 im) Cho 12,6 gr hn hp A cha Mg v Al c trn theo t l mol 3:2 tc dng va vi dd H2SO4 c, nng thu kh SO2 (kc).

1. Tnh % khi lng mi kim loi trong hn hp A?2. Tnh VSO2 ( 270 C; 5 atm).3. Cho ton b kh SO2 trn vo 400 ml dd NaOH 2,5 M. Tnh CM cc cht trong dd thu c.

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Cu 1 (2 im) Hon thnh cc phng trnh phn ng sau:1. Cho dd HI tc dng vi dd H2SO4 c. 2. Sc kh Clo vo dd KOH un nng.3. Cho MnO2 tc dng vi HCl c. 4. Sc t t kh SO2 vo nc clo

Cu 2 (2 im) So snh tnh cht ha hc ca axit sunfuric long v axit sunfuric c. Dn ra phng trnh phn ng minh ha.Cu 3 (2 im)

1. Hy xc nh cng thc oleum to thnh khi cho 180g dd H2SO4 98% hp th ht 22,4 lt SO3 (ktc). Tnh % khi lng SOtrong oleum.

2. Cho 300 ml dd H2SO4 98% (D = 1,84 g/cm3). Vy mun pha long th tch H2SO4 trn thnh dd H2SO4 15%.Tnh th tch ncn dng pha longCu 4 (1 im) Mt bnh phn ng c dung tch khng i, cha hn hp kh N2 v H2 vi nng tng ng l 0,3M v 0,7M. sakhi phn ng tng hp NH3 t trng thi cn bng toC, H2 chim 50 % th tch hn hp thu c. Hng s cn bng Kc toC c gitr l bao nhiu?Cu 5 (3 im) Cho 12,6 gr hn hp A cha Mg v Al c trn theo t l mol 3:2 tc dng va vi dd H2SO4 c, nng thu kh SO2 (kc).

1. Tnh % khi lng mi kim loi trong hn hp A? 2. Tnh VSO2 ( 270 C; 5 atm).3. Cho ton b kh SO2 trn vo 400 ml dd NaOH 2,5 M. Tnh CM cc cht trong dd thu c.

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Cu 1 (2 im) Khi cho cht A tc dng vi H2SO4 c, un nng sinh ra cht kh B khng mu. Kh B tan rt nhiu trong nc, tothnh dd axit mnh. Nu cho dd B m c tc dng vi mangan dioxit th sinh ra kh C mu vng nht, mi hc. Khi cho mt munatri tc dng vi kh C trong bnh, li thy xut hin cht rn A ban u. Xc nh tn cc cht A, B, C v vit cc phng trnh phn

ng minh ha ?Cu 2 (2 im) 1. Trong 2 phn ng sau y H2S th hin tnh axit hay tnh baz, tnh oxi ho hay tnh kh? Gii thch?

2NaOH + H2S = Na2S + 2H2O 2FeCl3 + H2S = 2FeCl2 + S +2HCl2. Vit 8 phng trnh phn ng to ra kh clo

Cu 3 (3 im)1. C 185,40g dd HCl 10,00%. Cn ha tan thm vo dd bao nhiu lt kh HCl (ktc) thu c dd axit clohidric 16,57%.2.Nung nng Cu trong khng kh, sau mt thi gian c cht rn A. Ho tan A trong H2SO4 c nng c dd B v kh C. Kh C

tc dng vi dd KOH c dd D. D va tc dng c vi BaCl2 va tc dng c vi NaOH. Cho B tc dng vi dd KOH. Vit cphng trnh phn ng xy ra.Cu 4 (1 im) ha tan ht mt mu km trong dd axit HCl 20oC cn 27 pht. Cng mu km tan trong dd axit ni trn 40oCtrong 3 pht. Hi ha tan ht mu km trong dd ni trn 55oC th cn bao nhiu pht?Cu 5 (2 im). Cho 7,6 g hn hp gm Fe, Mg, Cu vo dd H2SO4 , ngui d th thu c 6,16 lit kh SO2 (kc). Phn khng tan chtc dng vi dd HCl d thu c 1,12 lit kh (kc).Tnh % khi lng hn hp u.

S 21Bi1(1,0): Cho cc dung dch: NaCl, HCl, H2SO4, Na2SO4, Ba(NO3)2 ng trong cc l mt nhn. Hy trnh by phng php ha h nhn bit cc dung dch trn?Bi2(1,0): Cho cc cht: Canxi oxit, axit sufuric c, nc, mui n v MnO2. Hy vit phng trnh ha hc ca phn ng iu chclorua vi t cc cht trn (ghi r iu kin phn ng).Bi3(1,0): C 200 ml H2SO4 98%, khi lng ring l 1,84 g/ml. Ngi ta mun pha long th tch H2SO4 trn thnh dung dch H2SO

40%. Tnh th tch nc cn dng pha long (bit2H O

D = 1 g/ml)

Bi4(2,0): Cho s ca ba phn ng: FeS2 (1) SO2 (2 ) SO3 (3) H2SO4a/ Vit phng trnh ha hc ca cc phn ng biu din s trn (ghi r iu kin).b/ Tnh khi lng FeS2 cn iu ch 50gam dung dch H2SO4 49%.


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c/ Nu hp th ton b kh SO2 to thnh t phn ng (1) bng 300 ml dung dch NaOH 1M th khi lng mui to thnh sau phng bng bao nhiu?

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Cu 1: ( 3 im) Vit PTHH thc hin s chuyn ha sau (ghi y iu kin nu c)MnO2 (1) Cl2 (2 ) HCl (3) H2 (4 ) HBr (5) AgBr

(6) AlCl3

Cu 2: ( 2 im) Trnh by phng php ha hc phn bit 3 dung dch CaCl2, NaNO3, HClng ring bit trong 3 l mt nhn.Cu 3: ( 1 im) Vit PTHH chng minh Br2 c tnh oxi ha yu hn Cl2 nhng mnh hn I2Cu 4: ( 4 im) Ha tan hon ton 8,4 gam st trong 800 ml dung dch HCl. Sau phn ng

thu c dung dch A v kh B.a. Tnh th tch kh thu c ktc?

b. trung ha dung dch A cn dung va 400 ml NaOH 0,25M. Tnh nng ca dung dch HCl dung? (Coi th tch dung dcthay i khng ng k)

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Cu 1 (2 im) Hon thnh chui phn ng sau, ghi r iu kin phn ng (nu c)NaCl Cl2 KClO3 O2

HCl H2S H2SO4 SO2Cu 2 (1,5 im)

a) Vit phng trnh chng minh tnh kh ca cc hidro halogenua tng dn t HF n HI.b) Vit phng trnh chng minh O2 v O3 u c tnh oxi ha nhng O3 c tnh oxi ha mnh hn O2.

Cu 3 (2,5 im) Cho 5,25g hn hp A gm Zn, Cu, Mg ha tan va trong 58,4g dung dch HCl 10% thu c dung dch X v1,28g cht rn khng tan.

a) Tnh phn trm khi lng mi kim loi trong hn hp. (61,91%; 24,38%; 13,71%)b) Tnh nng phn trm cc cht trong dung dch X. (10,93%; 4,58%)c) Tnh th tch dung dch H2SO4 15M cn dng ha tan ht 7,875g hn hp A v th tch kh SO2 (sn phm kh duy nht)

thu c iu kin tiu chun. (20 ml; 3,36 lt)

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Cu 1: (2 im). Hon thnh cc phng trnh ha hc ca cc phn ng sau (ghi r iu kin nu c).a. Fe + Cl2 b. Al + H2SO4 longc. H2S + O2 d d. FeS + H2SO4 c

Cu 2: (2 im). Bng phng php ha hc, nhn bit cc dung dch mt nhn ng ring bit sau (vit cc phng trnh ha hc xra): KCl, Na2S, H2SO4, MgSO4.Cu 3: (3 im). Ha tan hon ton 13,2 gam hn hp A gm Fe v Mg bng 100 gam dd H2SO4 98% d thu c dd B v 9,52 lt khSO2 (ktc).a. Tnh % khi lng mi cht trong hn hp A.b. Tnh C% cc cht trong dd B.c. Dn ton b lng SO2 thu c trn vo 119 gam NaOH 20% thu c dung dch D. Thm vo dung dch D, 200 ml dung dccha Ba(OH)2 0,35M v BaCl2 1M thu c m gam kt ta. Tnh m.

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Cu 1: Thc hin chui phn ng sau (ghi r k nu c):( )

( )

( )

( )

( ) ( ) ( ) ( )

( ) ( ) ( )

9 6

1 2 3 4 5

2 3 2 2 4 4 2 3 3

10 7 8

2 2

Na SO SO H SO CuSO CuCl Cu NO

S H S NaHS Na S

Cu 2: Bng phng php ha hc, hy nhn bit cc l dd mt nhn sau: 2 2 3 2 4 3, , , , .Na S Na SO Na SO NaCl NaNO

Cu 3: T FeS2, nc, khng kh, cc cht xc tc, dng c cn thit c . Vit phng trnh phn ng ha hc iu ch:a. Axit sunfuric b. St (III) sunfat

Cu 4: Cho cn bng ha hc:( ) ( ) ( ) ( )2 2

;r k k k

C H O CO H + + 0H >Cn bng s chuyn dch theo chiu no nu ta thay i cc yu t sau (khng gii thch):a. H p sut chung ca h b. Ly bt H2 ra khi h c. Thm Cvo h c. Tng nhit


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Cu 5: Vit phng trnh phn ng ha hc chng t:a. H2S c tnh kh b. SO2 va c tnh oxi kh, va c tnh ha c. S c tnh oxi ha(mi ch vit 1 phng trnh, cn bng v ghi y s oxi ha)Cu 6: Cho 17,6g hn hp gmFe v Cu tc dng vi lng d H2SO4 98% un nng, thu c 8,96 lt kh SO2(kc)a. Tnh phn trm khi lng mi kim loi trong hn hp ban u?b. Dn ton b lng SO2 thu c trn vo 200 ml dung dch NaOH 3M. Tnh CM cc mui thu c sau phn ng?Cu 7: Hn hp A gm cc chtFe, Cu, Alc chia lm 2 phn bng nhau:

- Phn I: cho tc dng vi dd H2SO4 c, ngui, d thu c 0,448 lt SO2 (kc) v 1,10 g cht rn B- Phn II: cho tc dng vi dd H2SO4 long, d thu c dd C v cht rn D. C cn C thu c 4,94 g mui khanGi tn cc cht trong B, C, D v tnh khi lng hn hp A

S 26Cu 1. (3,0 im)Vit cc phng trnh ha hc ca cc phn ng hon thnh dy chuyn ha sau (ghi r iu kin, nu c):KClO3 O2 SO2 SO3 H2SO4 BaSO4

Na2SO4Cu 2. (3,5 im)a. Bng phng php ha hc, hy nhn bit cc dung dch ng trong cc l mt nhn sau: NaCl, Na2SO4, NaNO3, HCl. (vitphng trnh nu c)b. Vit phng trnh chng minh:

+ Tnh oxi ha Cl2 > Br2 + Tnh oxi ha Br2 > I2 + Tnh oxi ha O3 > O2Cu 3. (1,5 im)Cho 100ml dung dch NaOH 3M tc dng va vi V lt dung dch H2SO4 1M. Sau khi phn ng hon ton tnh:

a. V (ml). b. Nng mol (CM) ca dung dch thu c.Cu 4. (2,0 im)Cho 8,8 gam hn hp A gm (Cu v Fe) tc dng vi dung dch H2SO4 long d. Sau phn ng thu c 2,24 lt kh H2 (ktc). Hy:a. Xc nh khi lng tng kim loi trong hn hp A ban u.b. Tnh thnh phn % theo khi lng trong hn hp ban u.

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Bi1(1,0): Cho cc dung dch: NaCl, HCl, H2SO4, Na2SO4, Ba(NO3)2 ng trong cc l mt nhn. Hy trnh by phng php ha h nhn bit cc dung dch trn?Bi2(1,0): Cho cc cht: Canxi oxit, axit sufuric c, nc, mui n v MnO2. Hy vit phng trnh ha hc ca phn ng iu chclorua vi t cc cht trn (ghi r iu kin phn ng).Bi3(1,0): C 200 ml H2SO4 98%, khi lng ring l 1,84 g/ml. Ngi ta mun pha long th tch H2SO4 trn thnh dung dch H2SO

40%. Tnh th tch nc cn dng pha long (bit 2H OD = 1 g/ml)Bi4(2,0): Cho s ca ba phn ng: FeS2 (1) SO2 (2 ) SO3 (3) H2SO4

a/ Vit phng trnh ha hc ca cc phn ng biu din s trn (ghi r iu kin).b/ Tnh khi lng FeS2 cn iu ch 50gam dung dch H2SO4 49%.c/ Nu hp th ton b kh SO2 to thnh t phn ng (1) bng 300 ml dung dch NaOH 1M th khi lng mui to thnh sau ph

ng bng bao nhiu?

S 28Bi 1: (2 im) Thc hin chui phng trnh phn ng sau:

KClO3 O2 S SO2 H2SO4 Fe2(SO4)3

H2S H2SO4 CO2Bi 2: (3 im) Cho 28,1 gam hn hp A gm Zn v Ag phn ng va vi dung dch H2SO4 c, nng thu c 4,48 ltkh SO2 ( ktc).a, Vit phng trnh phn ng v tnh % khi lng mi kim loi trong hn hp ban u.b, Dn lng kh SO2 trn qua dung dch Brom d, sau nh tip BaCl2 n d vo dung dch. Tnh khi lng kt ta thuc.c, C mt loi qung pyrit cha 90 % FeS2. iu ch H2SO4 tc dng vi hn hp A th khi lng qung pyrit trnl bao nhiu. Bit hiu sut qu trnh iu ch H2SO4 l 85 %.

S 29Cu 1: (1,5 im) Hon thnh s phn ng sau:

FeS )1( SO2 )2( NaHSO3 )3( Na2SO4 )4( NaCl (5) Cl2 )6( NaClO


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Cu 2: (2,5 im)Ha tan hon ton 11,2 gam hn hp X gm Mg v Cu vo dung dch HCl d thu c 4,48 lt H2 (ktc), dung dch B v rn Y

Ha tan hon ton rn Y vo dung dch H2SO4 c nng d thu c V lt SO2 (ktc). Bit cc phn ng xy ra hon ton.a. Vit phng trnh ha hc xy ra. (0,5 im)b. Tnh thnh phn % khi lng ca mi kim loi trong X (1 im)c. Dn ton b V lt SO2 thu c trn vo 150ml dung dch NaOH 2M. Tnh nng CM ca cc cht c trong dung dc

sau phn ng (1 im)Cu 3: (1,0 im) Dng mt thuc th nhn bit cc dung dch sau: Na2SO4, H2SO4, NaCl, Na2SO3, Ba(OH)2

S 30Bi 1: (2 im) Thc hin chui phng trnh phn ng sau:

KMnO4 Cl2 NaCl HCl AgCl

Clorua vi Cl2 Br2 AlBr3

Bi 2: (3 im) Cho 23,6 gam hn hp A gm Cu v Ag phn ng va vi dung dch H2SO4 c, nng thu c 5,6 lt khSO2 ( ktc).a, Vit phng trnh phn ng v tnh % khi lng mi kim loi trong hn hp ban u.b, Dn lng kh SO2 trn qua dung dch Clo d, sau nh tip BaCl2 n d vo dung dch. Tnh khi lng kt ta thuc.c, C mt loi qung pyrit cha 98% FeS2. iu ch H2SO4 tc dng vi hn hp A th khi lng qung pyrit trnl bao nhiu. Bit hiu sut qu trnh iu ch H2SO4 l 80%.

S 31

Cu 1: (3) Vit phng trnh phn ng hon thnh s bin ho sau (ghi r iu kin, nu c)SO3 SO2 ZnS H2S SO2

H2SO4 H2SO4

Cu 2: (3)Trong phng th nghim c 4 ng nghim mt nhn cha cc dung dch sau: KOH, H2SO4, K2SO4, KNO3.Bng phng php ho hc, em hy ch ra mi ng nghim cha dung dch g?

Cu 3: (4)Cho m (g) st tan va trong 100 gam dung dch axit sunfuric, sau phn ng thu c 2,24 (l) kh hiro ktc.1)Tnh m 2) Tnh nng phn trm ca dung dch axit sunfuric.3) Tnh nng phn trm ca dung dch mui thu c?

S 32Cu 1. Hon thnh cc phng trnh phn ng trong dy chuyn ha sau :

MnO2 (1) Cl2(2)

Br2(3)

H2SO4(4)

Na2SO4(5)

BaSO4

(6) (7)

FeCl3 SO2 (8) Na2SO3Cu 2. 1. Hon thnh cc phng trnh phn ng sau :

a. H2S + SO20(t )

b. H2SO4 + Mg H2S +

c. H2SO4 + Cu SO2 + d. O3 + KI + H2O 2. Vit cc pt phn ng xy ra khi cho dung dch HCl tc dng vi cc cht dd NaOH, CuO, Fe, CaCO3.

Cu 3: a) Phn bit cc dng dch sau bng phng php ha hc: HCl; H2SO4; NaCl; NaNO3.b) Nu hin tng v vit phng trnh phn ng cho th nghim sau: Dn t t n d kh SO2 vo dung dch nc brom.

Cu 4: Cho 11,2g bt Fe tc dng vi 4,8g bt lu hunh, un nng (khng c khng kh) th thu c hn hp rn A. Tnh khi lng

tng cht trong hn hp A.Cu 5: Cho 20,8g hn hp X gm Mg v Fe2O3 tc dng v vi 500ml dung dch H2SO4 long th thu c 4,48 lt kh (ktc).

a. Tnh % khi lng cc cht trong hn hp X.b. Tnh nng mol ca dung dch H2SO4 dng.

Cu 6. Xt h cn bng sau trong mt bnh kn:C(r) + H2O(k) CO(k) + H2(k) ,H> O

Cn bng s dch chuyn theo chiu no nu ta thay i mt trong cc iu kin sau:a.tng nhit . b.thm lng hi nc vo. c.tng p sut chung ca h. d. dng cht xc tc .

S 33Cu 1: Axit H2SO4 c nng tc dng c vi nhng cht no sau y:Cu, P, NaNO3, Al, FeO, dd KMnO4, dd S, CaO, Ba(OH)2KOH. Vit phng trnh phn ng nu c.Cu 2: Bng phng php ho hc hy trnh by phng php nhn bit cc dung dch ring bit sau:


5

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K2S, K2SO3, K2SO4.Cu 3: Ho tan hon ton hn hp Mg v MgS, tc dng ht vi dung dch H2SO4 long d thu c 2,464 lt hn hp kh Y(ktcCho hn hp kh Y trn i qua dung dch Pb(NO3)2 th thu c 23,9 gam kt ta mu en.

a, Tnh th tch mi kh trong hn hp Y.b, Tnh khi lng mi cht trong hn hp u.

Cu 4: Hon thnh cc phn ng theo s sau : FeS2 SO2 SO3 H2SO4 CuSO4 CuCu 5 : Bng phng php ha hc Nhn bit cc dung dch mt nhn sau: HCl, NaCl, NaOH, CuSO4Cu 6 : Bi ton Cho 12,8g SO2 vo 250ml dung dch NaOH 1M. Vit phng trnh ho hc ca phn ng ?Tnh khi lng mui tothnh sau phn ng ?

S 34

Cu 1. Hon thnh s phn ng sau:FeS H2S SO2 KHSO3 K2SO3 KOH KClO3 Cl2 CaOCl2 CaCO3 CaBr2 AgBr Br2Cu 2. Hy nhn bit cc dung dch sau ch bng mt thuc th duy nht : MgCl2, Ba(NO3)2, K2CO3, NaCl, H2SO4Cu 3. Nu hin tng v gii thch khi cho:a. a ra nh sng ng nghim ng dung dch bc clorua c nh thm t git dung dch qu tm ?b. Dn kh H2S qua dung dch KMnO4 v H2SO4 ?Cu 4. Chia 15,57 gam hn hp X ( gm Al, Fe v Ag ) thnh hai phn bng nhau.Phn I: Tc dng va vi H2SO4 long d to ra 3,528 lt H2 ( ktc ) v 3,24 gam cht rn.Phn II: Tc dng va vi m gam dung dch H2SO4 98% c nng thu c V lt kh SO2 ( ktc )a. Tnh % khi lng cc cht trong X ?b. Tnh m v V ?

c. Tnh khi lng qung pirit ( cha 85% FeS2 cn li l tp cht tr ) cn dng iu ch lng H2SO4 trn bithiu sut ca c qu trnh l 80 % ?

S 35Cu 1: ( 2 im) Vit phng trnh ha hc ca cc phn ng sau ( ghi r iu kin , nu c):

a- F2 + NaOH c. H2O2 + KMnO4 + H2SO4 b- FeO + H2SO4 (c, nng) d. K 2Cr2O7 + HCl

Cu 2: (2 im) Nhn bit cc dung dch HCl, AgNO3, NaOH, Na2SO4, Ba(OH)2 bng phng php ha hcCu 3: (3 im)

a- Mui amoni hidrocacbonat nu ng trong chai h s dn dn bay hi ht. Nu y kn chai v np thm CO2 vo thmui ny c bo qun tt.Vn dng nguyn l Le Chatelier gii thch.

b- Phi ng nghim cha bc clorua ngoi nh sng. Nh tip vo vi git qu tm. Hin tng g xy ra, gii thch v vitphng trnh minh ha.

c- Cho kh clo i qua dung dch natri bromua, ta thy dung dch c mu vng. Tip tc cho kh clo i qua, ta thy dung dch

mt mu. Ly vi git dung dch sau th nghim nh ln giy qu tm th giy qu ha . Hy gii thch cc hin tngv vit cc phng trnh ha hc.

Cu 4: (3 im)Ha tan hon ton 1,44g kim loi ha tr 2 bng 250ml dung dch H2SO4 0,3M (axit long). Sau phn ng phi dng h

60ml dung dch NaOH 0,5M trung ha ht axit d. nh khi lng mol nguyn t v tn kim loi. Ha tan mt lng kimloi nh trn trong 149,07g axit sunfuric c , nng, th thy thot ra kh c mi trng thi. Tnh nng % ca dung dchmui thu c sau phn ng

S 36Cu 1: Hon thnh s chuyn ho sau ( ghi iu kin nu c ) (2im)

HCl FeCl2 FeCl3MnO2 Cl2

H2SO4

SO2

SO3

Na2SO4Cu 2: Nu hin tng v gii thch bng phng trnh cc trng hp sau : (2im)a. Cho giy qu tm t vo bnh cha kh clo.b. Cho kh H2S lin tc n d vo dung dch KMnO4/H2SO4.

Cu 3: Ch dng thm mt cht th hy nhn bit cc l mt nhn ng cc dung dch sau:Na2SO4 , H2SO4, NaCl, BaCl2, (2im)

Cu 4: Cho m gam hn hp A gm Mg v Cu tc dng vi dung dch HCl d thu c 2,24lt kh khng mu ( kc) . Cng lng hhp trn em ho tan trong dung dch H2SO4 c,d thu c 4,48lt kh SO2 ( kc )

a.Xc nh khi lng mi kim loi trong hn hp ban u ? ( 2im)b.Dn lng SO2 trn i qua 300ml dung dch NaOH 1M thu c dung dch B. Xc nh nng mol/l cc cht c trondung dch B ( V = const ) ( 1im )c.Xt phn ng : 2 SO2(K) + O2(K) 2 SO3(K) H < 0. thu lng kh SO3 ti u , v l thuyt ta c thdng nhng bin php no ? ( 1im )


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S 37

Cu 1: (3 im)Ha tan hon ton 1,44g kim loi ha tr 2 bng 250ml dung dch H2SO4 0,3M (axitlong). Sau phn ng phi dnght 60ml dung dch NaOH 0,5M trung ha ht axit d. nh khi lng mol nguyn t v tn kim loi. Ha tan mt lng kim lonh trn trong 149,07g axit sunfuric c , nng, th thy thot ra kh c mi trng thi. Tnh nng % ca dung dch mui thu csau phn ng.Cu 2: Cho t t 2,24 lt (ktc) kh Cl2 vo 100ml dd hn hp gm NaF 1M , NaBr 1M v NaI 1,5M. Ly dd.Cu 3: Ha tan hon ton 36,8 gam hn hp X gm Fe, Fe3O4 v CuO trong dd HCl d thu c dd A v 2,24 lt kh H2 (ktc). Dnkh H2S d vo dd A thu c 12,8 gam kt ta. Nu cho hn hp X trn tc dng vi axit H2SO4 c, nng, d th to ra V lt kh

SO2 (sn phm kh duy nht v o ktc). Cc p/ xy ra hon ton.Vit cc phng trnh ha hc ca cc p/ xy ra v xc nh cht kh, cht oxi ha trong cc p/ .Tnh gi tr ca VCu 4: Cho t t 2,24 lt (ktc) kh Cl2 vo 100ml dd hn hp gm NaF 1M , NaBr 2M v NaI 1M. Ly dd mui sau p/ hon ton chtc dng vi dd AgNO3 d ta thu c m (g) kt ta. Bit cc p/ xy ra hon ton, hy

S 38Cu 1: (3 im)Ha tan hon ton 1,44g kim loi ha tr 2 bng 250ml dung dch H2SO4 0,3M (axitlong). Sau phn ng phi dnght 60ml dung dch NaOH 0,5M trung ha ht axit d. nh khi lng mol nguyn t v tn kim loi. Ha tan mt lng kim lonh trn trong 149,07g axit sunfuric c , nng, th thy thot ra kh c mi trng thi. Tnh nng % ca dung dch mui thu csau phn ng.Cu 2: Cho t t 2,24 lt (ktc) kh Cl2 vo 100ml dd hn hp gm NaF 1M , NaBr 1M v NaI 1,5M. Ly dd.Cu 3: Ha tan hon ton 36,8 gam hn hp X gm Fe, Fe3O4 v CuO trong dd HCl d thu c dd A v 2,24 lt kh H2 (ktc). Dnkh H2S d vo dd A thu c 12,8 gam kt ta. Nu cho hn hp X trn tc dng vi axit H2SO4 c, nng, d th to ra V lt kh

SO2 (sn phm kh duy nht v o ktc). Cc p/ xy ra hon ton.Vit cc phng trnh ha hc ca cc p/ xy ra v xc nh cht kh, cht oxi ha trong cc p/ .Tnh gi tr ca VCu 4: Cho t t 2,24 lt (ktc) kh Cl2 vo 100ml dd hn hp gm NaF 1M , NaBr 2M v NaI 1M. Ly dd mui sau p/ hon ton chtc dng vi dd AgNO3 d ta thu c m (g) kt ta. Bit cc p/ xy ra hon ton, hy

S 39Cu 1. Dn 5,6 lt SO2 ktc vo 800ml dung dch NaOH 0,5M c dung dch X.a. Vit cc phng trnh phn ng c th xy ra b. Tnh khi lng ca tng cht tan trong X.Cu 2. Ho tan hon ton 17,6g hn hp X gm Cu v Fe vo H2SO4 c, nng thu c 8,96 lt SO2 ktc( sn phm kh duy nht).

a. Vit phng trnh phn ng xy ra b. Tnh % khi lng tng kim loi trong XCu 3. Cho 50g hn hp gm FeO, Fe3O4 v Fe2O3 tc dng vi dung dch H2SO4 long d. c dung dch Y. C cn dung dch Yc 38g FeSO4 v mg Fe2(SO4)3.

a. Vit phng trnh phn ng xy ra b. Tnh m

Cu 4: Cho 1,5 hn hp Al, Mg vo dung dch HCl d thu c 1,68 lt kh (ktc).a. Vit cc phng trnh phn ng xy ra. b. Tnh phn trm khi lng mi kim loi.Cu 5: Hon thnh chui p : FeS2SO2SO3H2SO4Na2SO4NaCl NaNO3.Cu 6 : C 4 l mt nhn ng 4 dung dch sau: HCl, NaNO3, NaCl. Bng phng php ha hc hy nhn bit 4 dung dch trn.

S 40

Bi 1 Ho tan hon ton m gam hn hp gm FeO, Fe2O3, Fe3O4 bng dung dch H2SO4 c, nng, d thu c 448ml kh SO2 ktc v 32g mui sunfat khan. Vit cc phng trnh phn ng xy ra v tnh m.

Bi 2 Trong mt bnh kn cha hn hp kh gm SO2 v O2 c t khi so vi hiro l 24, sau khi un nng vi cht xc tc thchhp v a v nhit ban u th thu c mt hn hp kh mi c t khi so vi hiro l 30.a). Tnh thnh phn phn trm theo th tch ca cc hn hp kh trc v sau phn ng.b). Tnh hiu sut ca phn ng.Bi 3 Vit cc phng trnh phn ng nhit phn cc cht sau: KMnO4; KClO3 (xc tc MnO2); HgO v H2O2.Bi 4 Trong cc hp cht i vi oxi v hiro th nguyn t X u c ho tr cao nht bng nhau. Trong hp cht ca X vi hiro thX chim 75% khi lng. Xc nh v tr ca X trong bng tun hon.

Bi 5 Ch c dng mt thuc th thch hp, hy trnh by phng php ho hc nhn bit cc l mt nhn ng cc kh sau:Cl2; NH3; HCl v O2.

Bi 6 Trong cng nghip amoniac c tng hp theo phng trnh phn ng sau: N2 + 3H2

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a). Vit cc phng trnh phn ng xy ra.b). Tnh m v V, bit khi lng ring ca dung dch HCl 7,3% l d = 1,25g/ml.

Xin thy hy dy cho con ti

(Trch th ca Tng thng M Abraham Lincoln gi thy hiu trng ngi trng ni con trai ng theo hc.)Con ti s phi hc tt c nhng iu ny, rng khng phi tt c mi ngi u cng bng, tt c mi ngi u chn tht.

Nhng xin thy hy dy cho chu bit c mi mt k v li ta gp trn ng ph th u s c mt con ngi chnh trc; c mmt chnh tr gia ch k, ta s c mt nh lnh o tn tm. Bi hc ny s mt nhiu thi gian, ti bit; nhng xin thy hy dy chochu bit rng mt ng la kim c do cng sc lao ng ca mnh b ra cn qu gi hn nhiu so vi nm la nht c trn h

ph...Xin thy dy cho chu bit cch chp nhn tht bi v cch tn hng nim vui chin thng.Xin hy dy chu trnh xa s k.Xin dy chu bit c b quyt ca nim vui chin thng thm lng. Dy cho chu bit c rng nhng k hay bt nt ng

khc nht li l nhng k d b nh bi nht...Xin hy gip chu nhn thy th gii k diu ca sch... nhng cng cho chu c thi gian lng l suy t v s b n

mun thu ca cuc sng: n chim tung cnh trn bu tri, n ong bay ln trong nh nng v nhng bng hoa n ngt bn i xanXin gip chu c nim tin vo kin ring ca bn thn, d tt c mi ngi xung quanh u cho rng kin hon ton sa

lm...Xin hy dy cho chu bit cch i x du dng vi nhng ngi ha nh v cng rn vi nhng k th bo. Xin to cho ch

sc mnh khng chy theo m ng khi tt c mi ngi u ch bit chy theo thi th.Xin hy dy cho chu bit phi lng nghe tt c mi ngi nhng cng xin thy dy cho chu bit cn phi sng lc nhng g

nghe c qua mt tm li chn l chu ch n nhn nhng g tt p...

Xin hy dy cho chu bit cch mm ci khi bun b, xin hy dy chu bit rng khng c s xu h trong nhng git ncmt.

Xin hy dy cho chu bit ch giu nhng k ym th v cn trng trc s ngt ngo y cm by.Xin hy dy cho chu rng c th bn c bp v tr tu cho ngi ra gi cao nht, nhng khng bao gi cho php ai ra gi mu

tri tim v tm hn mnh...Xin hy dy cho chu ngonh tai lm ng trc mt m ng ang go tht... v ng thng ngi bo v nhng g chu ch

l ng...Xin hy i x du dng vi chu nhng ng vut ve nung chiu chu bi v ch c s th thch ca la mi ti luyn nn

c nhng thanh st cng rn.Xin hy dy cho chu bit rng chu phi lun c nim tin tuyt i vo bn thn, bi v khi chu s lun c nim tin tuy

i vo nhn loi.y qu l mt yu cu qu ln, ti bit, tha thy. Nhng xin thy c gng ht sc mnh, nu c vy, con trai ti qu tht

l mt cu b hnh phc v may mn.

Tnh bn v tnh yu

Tnh bn l khi bn chi vi mt ngi nhng bn li thy no nhit chng km g mt cuc lin hoan.Tnh yu l khi bn i do gia ph ng ngi nhng li cm thy nh ch c 2 ngi.

Tnh bn l khi cch xa, cuc sng ca bn vn nh khi ngi gn.Tnh yu l khi cch xa, cuc sng ca bn khng h nh c, d bn vn "cm thy" ngi lun bn bn.

Tnh bn l khi bn hy vng ngi lm c nhng iu tt nht.Tnh yu l khi bn thn bn c gng mang n cho ngi nhng iu tt nht.

Tnh bn l khi bn "khng nh" bn s c gng bn cnh ngi khi ngi cn.Tnh yu l khi bn sn sng b tt c bn cnh ngi .

Tnh bn c th tn ti d khng c tnh yu trong .Nhng tnh yu khng th tn ti nu khng c tnh bn trong .

Hoa hng tng m

Anh dng li tim bn hoa gi hoa tng m qua ng bu in. M anh sng cch ch anh khong 300km. Khi bc ra khi xe,anh thy mt b gi ang ng khc bn va h. Anh n v hi n sao li khc.- Chu mun mua mt hoa hng tng m chu - n nc n - nhng chu ch c 75 xu trong khi gi mt hoa hng n 2 la.Anh mm ci v ni vi n:


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- n y, ch s mua cho chu.Anh lin mua hoa cho c b v t mt b hng gi cho m anh. Xong xui, anh hi c b c cn i nh xe v nh khng. N vuimng nhn anh v tr li:- D, ch cho chu i nh n nh m chu.Ri n ch ng cho anh n mt ngha trang, ni c mt phn m va mi p. N ch ngi m v ni:- y l nh ca m chu.Ni xong, n n cn t nhnh hoa hng ln m.Tc th, anh quay li tim bn hoa, hy b dch v gi hoa va ri v mua mt b hng tht p. Sut m , anh li mt mch300km v nh m anh trao tn tay b b hoa.

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40 de hoa 10 tu luan Hk2