ae DE KIEM TRA LOP 8 (Thoi gian 90 phit) ‘Caw 1. 1. Hay chon ede chit twong tng véi cde chét edi dé hoan thanh phirong trin hod hoc theo qué tinh ‘sau day (digu kign phan img phd hgp va mai chet cai 1a mot chit) ()A>B+CHD QC+HE+GHH+x G)AHESK+GEX+H (KHL EX#M (S)L+1S01 > N+ (OK +8019 N+E Biét D, X va M Id cde don chat & trang thai khi trong diéu kign thurimg, khi X €6 ti kh6i so voi SO> la 1,1094. DE trung hod dung dich chia 2,24 gam chét L ein 200 ml dung dich H2SOs 0,1M. - Ki X (@edw LI) dupe diéu ché trong phong thi nghigm eo sod sat Hay chon cdc chit (1), (2) phit hgp va vi inh phin img hia hoe xay ra? >. Cho bidt chat (3), (4) la chat ndo va c6 vai tr gi? BB. Trong cde nha may cung cp nude sinh hoat thi khdu cudi big ota vige st i mage li khir tring nude ‘M6t trong nhimg phuong phap khir tring nude dang duge sir dung phd bién 6 nude ta la sit dung X (6 eu 1.1). Lugng X duge bom vao nude trong bé tiép xiic theo ti 1é Sg/m’, ‘a, Hay gidi thich tgi sao X Iai duge sir dung 48 khit tring nude sinh hogt? Néu phuong phép sin ‘xudt X trong céng nghigp? b. Mot tinh 6 dan s6 khong 580,000 ngudi, méi ngudi ding 150 lit nuée méi nga, thi nh may cung cdp nude sinh hoat edn ding bao nhiéu kg X méi ngity cho vige xir li nude? Biét higu suat cia qua trinh xir i née 18 80%. (Cau IL. 1. Giai thich cde truéng hop sau vai vidt phuong trinh héa hgc ea cde phan img xay ra (néu 06): a, Than hoat tinh duge ding lam mgt na phong de, lim chit khir mau, khit mii, b. Khi hydrogen durgc sir dung kim nhién ligu thay thé cho than da, diu m6, Khi thién nhign. ¢. Cho b6t NaHCO: vao céc thiy tinh dumg dung dich CH3COOH. Nghiéng miéng céc vé phia ngon nén nhé dang chy thi ngon nén bj tit, 2. Phin kali (potassium) thic day nhanh qué trinh tgo ra chat dutmg, b9t, chét xo.., ting cudmg sire ching ret, ching sdu bénh va chju han eta cdy, DG dink dudng cba phin kali duge dainh gid theo ti 18 phan trim. ‘khéi lugng K2O tuong img véi lugng K 6 trong thanh phdn cita né. Mot loai phan kali trong thinh phin 66 chita 67,05% KCl; 31,05% K2COs vé khéi lugng, cin Iai la tap chat khéng chita nguyén t6 kali. Hay tinh d9 dinh dung cia Jogi phn kali trén, Ciu IIL. 1, Nam 1618, m6t néng dan tai Epsom nude Anh 48 cho din bd cha minh uéng nude, nhung cchiing khéng chju udng vi nude 6 vi rit cing chat. Nhung tinh cd, thir nude ding chat tai Epsom Iai rit 6 céng higu trong chia Hanh vét thuong. Sau nay, ngudi ta méi phat hign ra trong nude chita rit nhigu magnesium sulfate MgSOy. Bing phuong phép phan tich khdi phd cho thay trong tyr nhién Mg c6 3 ding ‘yj bin*Mg, Mg vi Me. . Hay tinh nguyén tir Khoi rung binh eba Mig, Wig saaresian aiane pater Cé bao nhiéu logi céng thie cfu to khdée nhau voi phan tir 7 1p80s, biét O €5 3 ding vj "0, "0, "0. . Tinh % Khoi luong ding vi Mg c6 trong MgSOy. Biét S= 32,065; )= 15,999. (gid tr} duge tinh kim trdn 3 con s6 sau dau phity) cde phurong @comscanner2. Hn hop X em KC va KCIO), Neuri ta cho thém 10 gam MnO; vito 39,4 gam hin hap X thu due hin hop Y. Nung Y & nhigt d) cao thu duge chat rin Z. va khi P, Cho Z. vio dung dich AgNOs lay dur thu durge (674 gam chit rin, Lay 1/3 hagng Khi P sve vo dung dich cita 0,5 mol FeSOx vi 0,3 mol SOx thu duge dung dich Q. Cho dung dich Ba(OH): Ly dur vo dung djch Q thu duge m gam két tia. Biét cée phan img xiy rabosin toan, Tinh gid tr etiam? 3. Hod tan hoan toan 0,812 gam mot mau quing sit gdm FeO, FeO; vi 35% tap chit tro trong dung, dich H3S0¢ (du), thu durge dung dich X. Sye khi SO, vao dung dich X, thu duge dung dich Y. Dung dich Y phin img vita di véi 22,21 ml dung dich KMn0, 0,1M. Mgt kh, hod tan hét 1,218 gam miu quing trén trong dung dich H;S0s (du) réi thém dung dich KMIn0, 0,1M vio dung dich thu duge cho dn Khi phan img xy ra hoan todn, thi hét 15,26 ml dung dich KMn0, 0,1M. + Vidi phuong trinh héa hge cia cd phn img xy ra. + Tinh thé tich SOs (Ake) d& ding va thinh phan phin trim theo khéi lugng cia FeO, FeO ¢6 trong quing. (Cau IV. 1. Hign nay, dé tin dung chat thai chin nudi dng thoi giam chi phi nding long va han ché 6 nhiém moi trr’ng, ngudi ta thrdng ding bép Biogas. Logi bép nay sit dung nhién ligu la khi methane CHs .duge sinh ra tir qua trinh phn huj cdc chat thai chin nudi, Nhiét lurgng tod ra khi dt chay hodn toan 1 mol hi methane la 889,6 KJ theo phuong trinh hot hge sau: CH, +20, “CO, +2H,0 ‘Tinh thé tich khé methane & dke cin dem d6t chy 48 dun 1,0 lit muéetir25°C lén 100°C, Cho biét kh Iuomg riéng ca nude Ja 1 g/m? va mudn néing 1 gam nude lén 1°C edn tidu tén nhigt long 1a 4,18 J. Gid st ki x chy khi methane, 80% long nhigt sinh ra lim ting nhigt d6 cba nude. 2. Nude 6 thé igo thanh mot loat cfu tric Tong, got ra .céc clathrate, ching 6 thé chéa nhiéu phan tir nh Fs Dy ‘bén trong, v6i cc kiéu cau wie tinh thé nu dudi diy. ‘Mot vi dy phé bién ld methane hydrate (CH,),(H:0),. ‘Céc methane hydrate c6 tiém nding cung cfip lugng methane gid tri 48 dap img nhu cfu cia con ngudi voi ki thign nhién, ‘a. Viét phuong trinh phan img dét chay methane cneicueet tong oxygen du, 1 Bbt chy 100g ma methane Hydrate thuge ea tric kg, (Ci) (FO), bi oxygen de trong inh i, Sau khi phn Ging kt thc, im ngugi sin phi hi thu hi duge 11692 g nue tr bin ch, vi cht Ki cin Jai Ki duge lke v6i mude voi dr thi go thinh 84.73 g CaCOs. Sir dung ede gi te khdihugmg mol (g/mol) sau iy d& tinh toin: CHs= 16.04, H20 = 18.016, CaCO3 = 100.09. Xéc dinh cdng thie thye nghigm va cdng thie phan tir ctia methane hydrate nay, biét khdi lugng mol li 2835.18 g.mot". cc. Nhiing trit lugng methane hydrate lin dat duge tim thy & diy hd Baikal & Nga. Theo we 6.67.10" kg methane & duéi day hd. Sir dyng phuong trinh khil i twomg, PV = nRT, trong dé p ki ép suit theo Pascal (I atm = 1.0, 10° Pa) ;V la thé tich theo mT li nig dO theo Kelvin; R831 1K"'mol'= 8.31 Pan? K’Lanot", Hay xéc dinh thé tich khi 6 thé chiém néu toan b6 lugmg khi thodt khoi hd Baikal vio mia dng amhigt d -19 °C @comscanner