BÀI TẬP CACBON

7/24/2019 BI TP CACBON

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BI TP CACBONHP CHT CA CACBONA.L THUYT

I.Tnh cht ca CacbonCu 1:Kim cng, than ch v than v nh hnh l

A. cc ng phn ca cacbon. B. cc ng vca cacbon.C. cc dng th hnh ca cacbon. D. cc hp cht ca cacbon.

Cu 2:Trong cc hp cht v c, cacbon c cc soxi ho lA.4; 0; +2; +4. B.4; 0; +1; +2; +4. C.1; +2; +4. D.4; +2; +4.

Cu 3: Trong tnhin oxi c 3 ng vbn 168O, 178O, 188O cn cacbon c 2 ng vbn 126C, 136C . Slng phn tCO2to thnh tcc ng vtrn l:

A. 12 B. 6 C. 9 D. 18

Cu 4:Cacbon v nh hnh v than ch l hai dng th hnh ca nhau vA. C tnh cht vt l tng tnhauB. u do nguyn tcacbon to nnC. C cu to mng tinh thging nhauD. Chng c tnh cht ho hc khng ging nhau

Cu 5:Pht biu no sau y l ng?

A. Kim cng c cu trc tinh thdng tdin u, than ch c cu trc lp, trong khongcch gia cc lp kh ln.

B. Kim cng c lin kt cng ho trbn, than ch th khng.C. t chy kim cng hay than ch nhit cao u to thnh kh cacboniC.D. Mt nguyn nhn khc.

Cu 6:Than hot tnh c sdng nhiu trong mt nphng c, khu trang y tl do than hottnh c khnng

A. hp thcc kh c. B. hp phcc kh c.C. phn ng vi kh c. D. khcc kh c.

Cu 7:Trong cc phn ng ha hc Cacbon thhin tnh g:

A. Tnh kh B. Tnh oxi haC. Va khva oxi ha D. Khng thhin tnh khv oxi ha.Cu 8:Nung nng trong bnh kn khng c kh tng cp cht rn sau: (1) C + KNO3; (2) Ca + C ; (3)KMnO4+ C ; (4) Al + C; (5) C + KClO3; (6) C + S; (7) C + CuO. Sphn ng oxi ha cacbon l

A. 4. B.5. C.3. D.6.

Cu 9:Cacbon phn ng vi dy no sau y:A. Na2O, NaOH v HCl B. Al, HNO3v KClO3C. Ba(OH)2, Na2CO3v CaCO3 D. NH4Cl, KOH v AgNO3

Cu 10:Tnh oxi ha ca cacbon thhin phn ng no?A. C + O2CO2 B. 3C + 4AlAl4C3

C. C + CuOCu + CO2 D. C + H2OCO + H2Cu 11:Cacbon phn ng c vi nhm cht no sau y

A. Fe2O3, Ca, CO2, H2, HNO3c, H2SO4cB. CO2, Al2O3, Ca, CaO, HNO3c, H2SO4cC. Fe2O3, MgO, CO2, HNO3, H2SO4cD. CO2, H2O, HNO3c, H2SO4c, CaO

Cu 12:Tnh khca C thhin phn ng no sau y

A.0t

2CaO 3C CaC CO B.

0t

2 4C 2H CH

C.0t

2C CO 2CO D.

0t

4 34Al 3C Al C

Cu 13:Tnh oxi ho v tnh khca cacbon cng thhin phn ng no sau yA.

0t

2CaO 3C CaC CO B.

0t

2 4C 2H CH


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C.0t

2C CO 2CO D.

0t

4 34Al 3C Al C

II. Tnh cht ha hc ca cc hp cht Cacbon1.Cacbon oxit (CO)

Cu 14:Kh CO khng khc oxit no sao y nhit cao.A. CuO B. CaO C. PbO D. ZnO

Cu 15: Dn lung kh CO qua hn hp Al2O3, CuO, MgO, Fe2O3(nng) sau khi phn ng xy ra honton thu c cht rn gmA. Al2O3, Cu, Mg, Fe B. Al, Fe, Cu, Mg

C. Al2O3, Cu, MgO, Fe D. Al2O3, Fe2O3, Cu, MgO

Cu 16: Cacbonmono oxit (CO) thng c dng trong vic iu ch kim loi bng phng phpnhit luyn l do:

A. CO c tnh khmnh B. CO c tnh oxi ho mnhC. CO khc cc tp cht D. CO nhhn khng kh

Cu 17:Trong cc phn ng ho hc sau, phn ng no sai?

A. 3CO + Fe2O3o

t 3CO2+ 2Fe B. CO + Cl2 COCl2

C. 3CO + Al2O3o

t

2Al + 3CO2 D. CO + 2NH3o

t

(NH2)2CO + H2OCu 18:Kh CO khng khc cht no sau y:

A. CuO B. CaO C. Al2O3 D. MgO

Cu 19:Cho hn hp gm CuO, MgO, PbO v Al2O3qua than nung nng thu c hn hp rn A.Cht rn A gm:

A. Cu, Al, MgO v Pb B. Pb, Cu, Al v AlC. Cu, Pb, MgO v Al2O3 D. Al, Pb, Mg v CuO

Cu 20:Dn kh CO i qua hn hp CuO, FeO, Fe3O4, Al2O3v MgO, sau phn ng cht rn thu cl:

A. Al v Cu B. Cu, Al v Mg

C. Cu, Fe, Al2O3v MgO D. Cu, Fe, Al v MgOCu 21:Thnh phn chnh ca kh than t l

A.2 2 2

CO,CO ,H ,N B.4 2 2

CH ,CO,CO ,N C.2 2 2

CO,CO ,H ,NO D.2 3 2

CO,CO ,NH ,N

Cu 22:Dn lung kh CO qua hnhp2 3 2 3

Al O ,CuO,MgO,Fe O (nng) sau khi phn ng xy ra hon

ton thu c cht rn lA.

2 3Al O ,Cu,MgO,Fe B. Al,Fe,Cu,Mg

C.2 3

Al O ,Cu,Mg,Fe D.2 3 2 3

Al O ,Fe O ,Cu,MgO

2.Cacbon ioxit (CO2)Cu 23:phn bit kh CO2v SO2ta cn dng dung dch no sau y:

A. Brm B. Ca(OH)2 C. phenolphtalein D. Ba(OH)2Cu 24:Kh lm vn c nc vi trong nhng khng lm nht mu nc brm l:A. CO2 B. SO2 C. H2 D. N2

Cu 25:loi kh CO2c ln trong hn hp CO ta dng phng php no sau y:A. Cho qua dung dch HCl B. Cho qua dung dch H2OC. Cho qua dung dch Ca(OH)2 D. Cho hn hp qua Na2CO3

Cu 26:Thi kh CO2vo dung dch Ca(OH)2d th thu c dung dch chaA. Ca(HCO3)2 B. CaCO3

C. Ca(HCO3)2v CaCO3 D. Ca(OH)2Cu27:Kh CO2khng thdp tt m chy cht no sau y:

A. Mgi B. Cacbon C. Phtpho D. MtanCu 28:Cho cc phn tsau: SO2, CO2, NH3, H2O, HF, FeS2, N2, Cl2. Sphn tphn cc lA. 6. B. 5. C.4. D. 3.


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Cu 29:trong phng th nghim CO2c iu chbng cch:A. nung CaCO3 B. cho CaCO3tc dng HClC. cho C tc dng O2 D. nhit phn Ca(HCO3)2

Cu 30:loi bkhSO2c ln kh CO2c thdng ha cht no sau y:A. dung dch Ca(OH)2 B. CuOC. dung dch Brom D. dung dch NaOH

Cu 31:C 4 lng kh ring bit: O2; H2; Cl2; CO2. Bng cch no sau y nhn bit cc kh trn

A. nc vi trong d B. nc vi trong d; qutm mC. tn m ; qutm m D. qutm m; nc vi trong d

Cu 32:Nc kh khng nng chy m thng hoa nn c dng to mi trng lnh v kh rtthun tin cho vic bo qun thc phm.Nc kh l

A. CO rn B. CO2rn C. H2O rn D. SO2rnCu 33:Hiu ng nh knh l hin tng tri t ang m dn ln do cc bc xc bc sng di trongvng hng ngoi bgili m khng bbc xra ngoi v tr. Kh no di y l nguyn nhn chnhgy ra hiu ng nh knh ?

A. SO2 B. NO C. CO2 D. NO2

Cu 34:Khi xt vkh cacbon ioxit, iu khng nh no sau y khng ng?

A. Cht kh khng mu, khng mi, nng hn khng kh.B. Cht kh chyu gy ra hiu ng nh knh.C. Cht kh khng c, nhng khng duy tr ssng.D. Cht kh dng cha chy, nht l cc m chy kim loi.

Cu 35:C hin tng g xy ra khi nhttti d dung dch NaOH vo dung dch Ba(HCO3)2?A. Khng c hin tng gB. C kt ta trng xut hin khng tan trong NaOH dC. C kt ta trng xut hin trong tan NaOH dD. C si bt kh khng mu thot ra.

Cu 36:Ngi ta c thsdng nc kh (CO2rn) to mi trng lnh v kh trong vic bo

qun thc phm v hoa quti. VA. Nc kh c khnng ht m.B. Nc kh c khnng thng hoa.C. Nc kh c khnng khtrng.D. Nc kh c khnng dho lng.

Cu 37: tch kh CO2ra khi hn hp vi HCl v hi nc, c thcho hn hp ln lc qua:A. NaOH v H2SO4 c B. Na2CO3v P2O5C. H2SO4c v KOH D. NaHCO3v P2O5

Cu 38:Khi iu chCO2(bng HCl v CaCO3) thng c ln hi HCl v hi nc. thu CO2tinhkhit c thcho CO2 ln lt i qua 2 bnh ng cc dung dch

A. NaOH, H2SO4c B. NaHCO3, H2SO4 cC. Na2CO3, CaO D. H2SO4c, Na2CO33.Mui cacbonat (MCO3)Cu 39:Cht no sau y cha CaCO3trong thnh phn ho hc ?

A. lmit B. Cacnalit C. Pirit D. XieritCu 40Thnh phn chnh ca qung lmit l:

A. CaCO3.Na2CO3 B. MgCO3.Na2CO3 C. CaCO3.MgCO3 D. FeCO3.Na2CO3

Cu 41: Cho cc cht sau: (NH4)2CO3, NaHCO3, Al(OH)3, Cr(OH)2, Zn(OH)2, Pb(OH)2, Sn(OH)2,H2O, NaHSO4, Na2HPO4. Scht lng tnh l

A. 8. B. 9. C.7. D.6.

Cu 42:Tng shstrong phng trnh phn ng Ca(HCO3)2+ Ca(OH)2dng phn tv ion rtgn ln lt l

A. 4,5 B. 6,4 C. 6,5 D. 5,6


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Cu 43:Dung dch mui X lm qutm ngsang mu xanh, dung dch Y khng lm i mu qutm.Trn ln dung dch hai mui th thu c kt ta. Dung dch X, Y c thl:

A. NaOH v K2SO4 B. K2CO3v Ba(NO3)2C. KOH v FeCl2 D. Na2CO3v KNO3

Cu 44:Shnh thnh thch nh trong cc hang ng vi l nhphn ng ho hc no sau y?

A. 3 2 2 3 2CaCO CO H O Ca(HCO )

B. 2 2 3 3Ca(OH) Na CO CaCO 2NaOH C.

0t

3 2CaCO CaO CO

D.3 2 3 2 2

Ca(HCO ) CaCO CO H O

Cu 45:Phn ng no sau y khng xy ra

A.0t

3 2CaCO CaO CO B.

0t

3 2MgCO MgO CO

C.0t

3 2 3 2 22NaHCO Na CO CO H O D.

0t

2 3 2 2Na CO Na O CO

Cu 46: Ca(HCO3)2c thtc dng vi tt ccc cht trong dyA. HCl, Cu(NO3)2, Mg(OH)2 B. HCl, BaCO3, KOH

C. HNO3, Na2CO3, Ba(OH)2 D. HNO3, BaCl2, NaOHCu 47:C 5 lmt nhn ng 5 cht bt mu trng: NaCl, Na2CO3, Na2SO4, BaCO3, BaSO4. Chdngnc v kh CO2th scht c thnhn ra c l

A. 2 B. 3 C. 4 D. 5

Cu 48:C 4 lmt nhn ng 4 cht bt sau NH4Cl, NaCl, CaCO3, Na2SO4. C thsdng nhmcht no sau y nhn bit c c4 cht trn?

A. Dung dch NaOH, dung dch H2SO4B. Dung dch Ba(OH)2, dung dch HClC. Dung dch KOH, dung dch HClD. Dung dch BaCl2, dung dch HCl

Cu 49:Cp cht cng tn ti trong mt dung dch lA. Ca(HCO3)2v NaHSO4 B. NaHSO4v NaHCO3C. NaHCO3v BaCl2 D. AgNO3v Fe(NO3)2

Cu 50: un si bn dung dch, mi dung dch cha 1 mol mi cht sau: Mg(HCO3)2, Ca(HCO3)2,NaHCO3, v NH4HCO3. Khi phn ng xy ra hon ton, khi lng dung dch gim nhiu nht l

A. Dung dch Mg(HCO3)2 B. Dung dch Ca(HCO3)2C. Dung dch NaHCO3 D. Dung dch NH4HCO3

Cu 51:Hn hp X cha K2O, NH4Cl, KHCO3, BaCl2 smol bng nhau. Cho hn hp X vo nc(d), un nng, thu c dung dch cha

A. KCl, KOH B. KCl C. KCl, KHCO3 D. KCl, KOH, BaCl2

Cu 52:Cho dung dch cha cc ion Na+

, Ca2+

, Mg2+

, Ba2+

, H+

, Cl-

. Phi dng dung dch cht no sauy loi bht cc ion Ca2+, Mg2+, Ba2+, H+ra khi dung dch ban u?A. K2CO3 B. NaOH C. Na2SO4 D. AgNO3

Cu 53: C 4 dung dch: NaOH, H2SO4, HCl, Na2CO3. Chc dng thm mt thuc thno sau yphn bit cc dung dch trn?

A. Dung dch HNO3 B. Dung dch KOHC. Dung dch BaCl2 D. Dung dch NaCl

Cu 54: C ba dung dch ring bit l Ba (NO3)2, Ca(HCO3)2v MgSO4bmt nhn. C thdng thucthno sau y nhn bit c cba dung dch trn?

A. Ba(OH)2 B. H2SO4 C. NaOH D. Na2CO3

Cu 55:Cho cc cht sau Mg, Fe3O4, HCl, Ba(OH)2, CO2. Sphn ng c thxy ra (cc iu kinphn ng coi nh y ) nu cho cc cht tc dng vi nhau tng i mt lA. 10 B. 8 C. 9 D. 6


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Cu 56:Dumg dch X lm qutm ho xanh, dung dch Y lm quha hng. Trn X v Y th thy c kt ta vkh bay ln. X, Y l cp cht no sau y

A. NaOH v KHSO4 B. Na2CO3v BaCl2 C. Na2CO3v FeCl3 D. K2CO3v HClCu 57:Cht X c cc tnh cht sau: (1) tc dng vi dung dch HCl to ra kh lm c nc vi trong,(2) X lm mt mu dung dch Br2, (3) X tc dng vi dung dch Ba(OH)2c thto ra 2 mui. X l

A. NaHCO3 B. NaClO3 C. Na2S D. KHSO3

Cu 58:Cho s sau: CaXYZTCa. Thtcc cht X, Y, Z, T c thl

A. CaO, Ca(OH)2, Ca(HCO3)2, CaCO3B. CaO, CaCO3, Ca(HCO3)2, CaCl2

C. CaCl2, CaCO3, CaO, Ca(HCO3)2

D. CaO, CaCl2, CaCO3, Ca(OH)2

Cu 59:C cc dung dch: (NH4)2CO3, Cu(NO3)2, FeCl3, Fe(NO3)2, AlCl3, NH4Cl. Chdng mt hocht no sau y c thphn bit c cc dung dch trn?

A. Dung dch NH3 B. Dung dch NaOH dC. Dung dch Na2SO4 D. Dung dch Ba(OH)2d

B. CC DNG TON

I. Khoxit kim loi bng COCu 60: Trong qu trnh sn xut gang, xy ra phn ng Fe2O3(r) + 3CO(k)2Fe(r) + 3CO2(k), H >0. Ngi tc dng cc bin php (1) Tng nhit phn ng; (2) Dng cht xc tc; (3) Gim nhit

phn ng; (4) Tng p sut chung ca h. Yu tgip tng hiu sut ca phn ng trn lA. (1) B. (3) C. (1) (2) D. (2), (3), (4)

Cu 61:Khhon ton 17,6gam hn hp X gm Fe, FeO, Fe2O3cn 2,24 lt CO (ktc). Khi lngst thu c l

A. 5,6 gam B. 6,72 gam C. 16,0 gam D. 11,2 gam.

Cu 62: kh hon ton hnhp FeO,CuO cn 4,48 lt H2(kc).Nu cng kh hon ton hnhp bng CO th lng CO2thu c khi cho qua dd nc vi trong d to ra bao nhiu gam kt ta?

A. 1,0g B. 2,0g C. 20g D. 10gCu 63:Kh 32g Fe2O3bng kh CO d,sn phm kh thu c cho vo bnh ng nc vi trong dthu c a gam kt ta.Gi tr ca a l

A. 60g B. 50g C. 40g D. 30g

Cu 64:Cho kh CO i qua m gam Fe2O3nung nng th thu c 10,68 gam cht rn A v kh B. Choton bkh B hp thvo 350ml dung dch Ca(OH)20,1M th thy to ra 3,0 gam kt ta. Gi trca ml

A. 11,16 B. 11,64 hoc 11,96 C. 11,64 D. 11,16 hoc11,32Cu 65:Dn 1 lung CO d qua ng ng m gam hn hp X gm Fe2O3v CuO nung nng thu ccht rn Y; kh ra khi ng c dn vo bnh ng dung dch Ca(OH)2d, thu c 40 gam kt ta.

Ho tan cht rn Y trong dung dch HCl d thy c 4,48 lt kh bay ra (ktc). Gi tr ca m lA. 24 B. 16 C. 32 D. 12

Cu 66:Cho hi nc i qua than nng c hn hp kh X gm CO2; CO v H2. Ton blng khX va khht 48 gam Fe2O3thnh Fe v thu c 10,8 gam H2O. Phn trm thtch CO2trong X l

A. 28,571% B. 14,286% C. 13,235% D. 16,135%

Cu 67: Cho mt lung kh CO i qua ng s cha m gam Fe2O3nung nng. Sau mt thi gian thuc 10,44 gam cht rn X gm Fe, FeO, Fe2O3v Fe3O4 . Ha tan ht X trong dung dch HNO3cnng c 4,368 lt NO2(sn phm khduy nht ktc). Gi trm l

A. 12 B. 24 C. 10,8 D. 16

Cu 68: Cho dng kh CO i qua ng scha 0,12 mol hn hp gm FeO v Fe2O3nung nng, phn

ng to ra 0,138 mol CO2. Hn hp cht rn cn li trong ng nng 14,352 gam gm bn cht. Ho tanht hn hp bn cht ny vo dung dch HNO3d c V lt kh NO (sn phm khduy nht). Gi trca V (ktc) l


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A. 0,224 B. 0,672 C. 2,285 D. 6,854

Cu 69: Cho 4,48 lt CO (ktc) tc dng vi FeO nhit cao. Sau phn ng thu c cht rn A ckhi lng b hn 1,6 gam so vi khi lng FeO ban u. Khi lng Fe thu c v % thtch CO2trong hn hp kh sau phn ng ln lt l

A. 5,6 gam; 40% B. 2,8 gam; 25% C. 5,6 gam; 50% D. 11,2 gam; 60%

Cu 70: Cho 4,48 lt CO (ktc) tti qua sng snung nng ng 8 gam mt oxit st n khi phnng xy ra hon ton. Kh thu c sau phn ng c tkhi so vi hiro bng 20. Cng thc ca oxit st

v phn trm thtch ca kh CO2trong hn hp kh sau phn ng lA. FeO; 75% B. Fe2O3; 75% C. Fe2O3; 65% D. Fe3O4; 65%

Cu 71: Dng CO khhon ton 2,88 gam hn hp X gm Fe, FeO, Fe2O3thu c 2,24 gam chtrn. Mt khc, ho tan 2,88 gam X cn dng va vi 100ml dung dch HCl. Kt thc th nghimthu c 224 ml kh (ktc). Nng mol ca dung dch HCl l

A. 0,5M B. 1,0M C. 1,5M D.2,0M

Cu 72:Khi cho CO (d) qua ng snung nng ng hn hp X gm Al2O3, MgO, Fe3O4, CuO thuc cht rn Y. Cho Y vo dung dch NaOH d, khuy k. Sau phn ng (giscc phn ng xy rahon ton) cn li cht rn Z. Hn hp Z gm

A. MgO, Fe3O4 B. Mg, Fe, Cu C. MgO, Fe, Cu D. Mg, Al, Fe, Cu

II.Dng ton CO2tc dng vi dung dch kim

DNG1:2CO

OH

nCho n

n

mui

Cu 73: Hp th hon ton 2,24 lt CO2(kc)vo dd nc vi trong c cha 0,25 mol Ca(OH)2.Snphm mui thu c sau phn ng gm:

A- Ch c CaCO3 B- Ch c Ca(HCO3)2C- C CaCO3v Ca(HCO3)2 D- Khng c c 2 cht CaCO3v Ca(HCO3)2

Cu 74:Sc 1,12 lt CO2(kc) vo 200ml dd Ba(OH)20,2M khi lng kt ta thu c lA. 78,8g B. 98,5g C. 5,91g D. 19,7g

Cu 75:Cho 5,6 lt CO2(kc) i qua 164ml dd NaOH 20%(d = 1,22g/ml) thu c dd X.C cn dd Xth thu c bao nhiu gam cht rn:

A. 26,5g B. 15,5gC. 46,5g D. 31g

DNG2:2

3

Ca(OH)

2

CaCO

nCho nCO

n

Cu 76:Hp th hon ton V lt CO2(kc) vo dd nc vi trong c cha 0,05 mol Ca(OH)2thu c2g kt ta.Gi tr ca V l:

A. 0,448 lt B. 1,792 lt C. 1,680 lt D. A hoc B ngCu 77:Sc V ltCO2(kc) vo 4 lt dd Ba(OH)20,02 M c 9,85g kt ta. Gi tr ln nht ca V l

A. 3,696. B. 2,24. C. 1,12. D. 2,464.

Cu 78:Hp th V lt CO2(kc) vo 200ml Ca(OH)2x mol/l nc vi trong thu c 10g kt ta. Khilng dd sau p gim 3,4g so vi khilng dd ban u. Gi tr ca V v x l

A. 3,36 v 2,5. B. 4,48 v 1,25. C. 3,36 v 0,625. D. 4,48 v 2,5.Cu 79:Sc V lt CO2(kc) vo 100ml dd Ba(OH)2c pH = 14 to thnh 3,94g kt ta.V c gi tr l

A. 0,448 lt B. 1,792 lt C. 0,75 lt D. A hoc B

Cu 80:Sc V lt CO2(kc) vo dd Ba(OH)2thu c 9,85g kt ta.Lc b kt ta ri cho dd H2SO4dvo nc lc thu thm 1,65g kt ta na.Gi tr ca V l

A. 11,2 lt v 2,24lt B. 3,36 lt C. 3,36 lt v 1,12 lt D. 1,12 lt v 1,437 lt


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DNG3:2

3

CO

2

CaCO

nCho nCa(OH)

n

Cu 81:Hp th hon ton 2,688 lt kh CO2(kc) vo 2,5 lt dd Ba(OH)2nng a mol/lt,thu c15,76g kt ta .Gi tr ca a l

A. 0,032 B. 0.048 C. 0,06 D. 0,04

Cu 82:Cho 2,24 lt kh CO2(kc) tc dng va vi 200ml dd Ca(OH)2sinh ra 8 gam kt ta trng.Nng mol/lt ca dd Ca(OH)2lA. 0,55M B. 0,5M C. 0,45M D. 0,65M

Cu83:Cho 0,3mol CO2vo Vml dd Ba(OH)20,9M, thu c m gam kt ta v dd cha 19,425g mtmui cacbonat. V l:

A. 255ml. B. 250ml. C. 252ml. D. 522ml.

DNG 4: CO2TC DNG VI HN HP BAZCu 84:Cho 0,02mol CO2vo 100ml dd Ba(OH)20,12M v NaOH 0,06M thu c m gam kt ta. Gitr ca m l

A. 3,940. B. 1,182. C. 2,364. D. 1,970.

Cu 85:Cho 0,03mol CO2vo 1 lt dd gm NaOH 0,025M v Ca(OH)20,0125M thu c x gam kt

ta. x lA. 2,00. B. 0,75. C. 1,00. D. 1,25.

Cu 86:Cho a mol CO2 hp th vo dd cha 0,2mol NaOH v 0,15 mol Ba(OH)2thu c 23,64g ktta. a l

A. 0,12. B. 0,38. C. 0,36. D. 0,12 hoc 0,38.Cu 87:Sc V lt CO2(ktc) vo 200ml dd hnhp KOH 0,5M v Ba(OH)20,375M thu c 11,82gkt ta. Gi tr ca V l

A. 1,344l lt B. 4,256 ltC. 1,344l lt hoc 4,256 lt D. 8,512 lt

Cu 88: Cho 0,2688 lt CO2(kc) hp th hon ton bi 200ml dd NaOH 0,1M v Ca(OH) 20,001M.Tng khi lng ccmui thu c l

A. 2,16g B. 1,06g C. 1,26g D. 2,004g

III..Mui CO32-

DNG 1: HCl TC DNG VI MUI CACBONNATCu 89:Cho m gam hn hp mui cacbonat tc dng ht vi dd HCl thu c 6,72 lt kh CO2(kc) v32,3g mui clorua.Gi tr ca m l:

A. 27g B. 28g C. 29g D. 30g

Cu 90:Cho 3,45g hn hp mui natri cacbonat v kali cacbonat tc dng ht vi dd HCl thu c V ltCO2(kc) v 3,12g mui clorua.Gi tr ca V l :

A. 6,72 lt B. 3,36 lt C. 0,67 lt D. 0,672 lt

Cu 91:Cho 80 ml dd HCl 1M vo dd cha 0,04mol Na2CO3v 0,02mol K2CO3. Th tch kh CO2(kc) sinh lA. 1,344 lit. B. 0,672 lit. C. 0,896lit. D. 2,24lit.

Cu 92:Cho 0,15mol hn hp NaHCO3v MgCO3tc dng ht vi dd HCl.Kh thot ra c dn vodd Ca(OH)2d thu c b gam kt ta.Gitr ca b l

A. 5g B. 15g C. 25g D. 35g

Cu 93:Cho 7g h n hp 2 mui cacbonat ca kim loi ho tr II tc dng vi dd HCl thy thot ra V ltkh (kc).Dung dch c cn thu c 9,2g mui khan.Gi tr ca V l

A. 4,48 lt B. 3,48 lt C. 4,84 lt D. Kt qu khc

DNG 2: HCl TC DNG T T VI CACBONAT

Cu 94: (H A 2007). Cho ttdung dch cha a mol HCl vo dung dch cha b mol Na2CO3ng thikhuy u, thu c V lt kh (ktc) v dung dch X. Khi cho d nc vi trong vo dung dch X thyc xut hin kt ta. Biu thc lin hgia V vi a, b l:


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A. V = 22,4(a b). B. V = 11,2(a b). C. V = 22,4(a + b). D. V = 11,2(a + b).Cu 95: Thm t t tng git dung dch cha 0,05 mol HCl vo dung dch cha 0,06 mol K2CO3. Thtch kh CO2(ktc)thu c l:

A. 1,344 lt B. 0,560 lt C. 0,000 lt D. 1,120 lt

Cu 96:Thm t t mt dd HCl 0,5M vo dd X cha a mol NaHCO3v b mol Na2CO3. Khi thm 0,3ltdd HCl th bt u si bt kh. Khi thm 0,7lt dd HCl th ht si bt. a v b l

A. 0,05mol v 0,15mol. B. 0,20mol v 0,18mol. C. 0,15mol v 0,12mol. D. 0,08mol v 0,15mol

Cu 97:Dd X cha 0,6mol NaHCO3v 0,3mol Na2CO3. Cho t t dd cha 0,8mol HCl vo dd X cdd Y v x mol kh. Cho t t nc vi trong d vo dd Y thu c m gam kt ta. Tnh V v m.

A. 0,4 mol v 40g. B. 0,4mol v 60g. C. 0,5mol v 60g. D. 0,5mol v 40g

Cu 98: Trn 100ml dd A gm KHCO3 1M v K2CO3 1M vo 100ml dd B gm NaHCO3 1M vNa2CO31M thu c dd C. Nh t t 100ml dd D gm H2SO41M v HCl 1M vo dd C thu c x molCO2v dd E. Cho dd Ba(OH)2ti d vo dd E th thu c m gam kt ta. Gi tr ca m v x l

A. 82,4g v 0,1mol. B. 4,3g v 0,05mol. C. 43g v 0,1mol. D. 3,4g v 0,25mol.

DNG 3: MUI CACBONAT TC DNG T T VI HCl

Cu 99: Thm ttn ht dung dch cha 0,02 mol K2CO3vo dung dch cha 0,03 mol HCl. Thtch kh CO2(ktc) thu c l:A. 0,448 lt B. 0,224 lt C. 0,336 lt D. 0,112 lt

Cu 100: Trn 150 ml dung dch X cha hn hp gm Na2CO31M v K2CO30,5M. vi 250 ml dungdch HCl 2M. Th thtch kh sinh ra (ktc) l:A. 2,52 lt B. 3.36 lt C. 5,60 lt D. 5,04 ltCu 101: Trn 200 ml dung dch X cha hn hp gm NaHCO31M v K2CO30,5M. vi 250 ml dungdch KHSO42M. Th thtch kh sinh ra (ktc) l:A. 6,72 lt B. 3.36 lt C. 5,60 lt D. 5,04 lt

DNG 4: TNG HP

Cu 102: Trn dung dch cha Ba2+

; OH

-

0,06mol v Na+

0,02mol vi dung dch cha HCO3-

0,04mol;CO 2

30,03mol v Na+. Khi lng kt ta thu c sau khi trn l

A. 39,4 gam B. 5,91gam C. 7,88 gam D. 3,94 gam

Cu 103:Trn dung dch NaHCO3v NaHSO4c cng nng theo tlthtch 1:1. Thu c dungdch sau cho qutm vo dung dch th qutm c mu

A. B. Xanh C. Tm D. Mt muCu 104:Nhit phn hon ton m gam hn hp X gm CaCO3, v Na2CO3thu c 11,6g cht rn v2,24lit kh(ktc). Hm lng % CaCO3trong X l

A. 6,25% B. 8,62% C. 50,2% D. 62,5%

Cu 105:Nung 100 gam hn hp gm Na2CO3v NaHCO3cho n khi khi lng hn hp khng i

c 69 gam cht rn. Phn trm khi lng ca mi cht trong hn hp ln lt lA. 16% v 84% B. 84% v 16% C. 26% v 74% D.74% v 26%

Cu106:Cho 2,44g hn hp NaCO3v K2CO3tc dng hon ton vi dd BaCl22M.Sau phn ng thuc 3,94g kt ta.Th tch dd BaCl22M ti thiu l

A. 0,01 lt B. 0,02 lt C. 0,015 lt D. 0,03 ltCu 107:Nung 26,8g hnhp CaCO3v MgCO3n khi lng khng i thu c a gam cht rn v6,72 lt kh CO2(kc).Gi tr ca a l

A. 16,3g B. 13,6g C. 1,36g D. 1,63g

Cu 108:Nung hnhp 2 mui CaCO3v MgCO3 thu c 76g hai oxit v 33,6 lt CO2(kc).Khi

lng hnhp mui ban u lA. 142g B. 141g C. 140g D. 124g


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