- L&' 9

K* THI HQC SXNH G I ~ I THANH P B ~ N6m hoc 201 2-2013

sb ~rAo DVC & DAO T ~ O HA ~ 0 1

M8n thi: H6a HQC Nghy thi: 05 - 4 - 2013 Thivi gian lhm bli: 150 phut ( . t ! thi gdm 2 trang)

Clu I ( 3,0 diim) I/ C ~ O su a6 phAn img:

00

H,SO,(loang)

(GI

(v + NBOH , (2) - Fe(OH13

F + (Nj't Q) +ta,it"/

,hum, trlnh hoh hpc minh hpa.

~ i k t : (X) + H2S04 oolg) + (Y) + (G) + H20. vikt 21 C6 chc chit khi bt>i lh hai nu6c sau: khi C02, khi 02, khi SOz. N ~ U d h g H2SOs d$c hoac CaO cb th& l h kh6 duqc nhting khi nho nbi trCn. GiAi thich @i sao? Clu I1 ( 4,0 dihm) 11 Neu hi$n tuqng h6a h ~ c v$ vikt chc phuong trinh hoA h ~ c minh hpa cho cac thi nghigm sau b i y :

a) Nh6 tu tu din du dung djch HF vdo Ang nghiem d p g boi Si02. b) ThPm vAi gipt pllenolphtalein vao 6ng nghiem chua dung djch NaOH lohg, sau 66 them ti$ lupng du dung djch HCl. c) D& tir tir dkn du khi CH3-CH=CH2 vho Brig nghiem ch3a dung djch brom. d) Cho tiT tir bin du dung djch HzS04 vAo Ang nghiem chira bat CuO, rbi sau d6 them tikp dung djch NaOH du.

21 X, Y, Z I& Iuqt l i mu& cua ciic kim loqi nnatri, kali, bari thoh m h chc diku kien sau:

Z + X -. c6 chit khhi A v& c6 chit kkt tha C.

~ i & t khi A c6 p h h img l h rnh rnhu dung djch brom vh k&t tea C khbng tan trong dung djch

HCI. C h ~ n chc mu& X, Y, pha hqp va viit chc phuong trjnll hob h ~ c minh hog. CQu 111 (4,O d l h ) I/ D& 5,6 lit h6n hgp khi A (dktc) gbm metan, etilen va axetilen vho dung djch chi chim 40 gam brom, sau khi ch p h h img xtiy ra h o b t o h thu duqc 500 ml dung dich trong 66 brom c6 nbng de 0,l M. N ~ U dem ddt chhy h o h toin 2,8 lit h6n hpp khl A (bktc) trong oxi du &hi thu h p c 4,05 gam nubc.

dB xfty ra.

a) ~ i & t c9c phrrmg trinh h6a h ~ c b) Tinh t h b h phhn phkn t r h theo th6 tic11 m8i khi trong h8n hqp A.

21 Cho 19,6 garn h6n hgp X g8rn canxi vA canxi cacbua thc d w g h&t vdi nubc, thu d u ~ c 8,96 lit h6n hpp khi Y (dktc).

a) Tinh kh6i lupng m6i chit cb trong h6n hlrp X. b) Dem t o h b$ luwg h8n hqp khi Y nung nbng v6i x k thc Nj thl xhy ra hai p h h img:

Ni, to

c2H6 (2).

C2Hz 4- H2 '

t o ) c2H4 (1)

C2H2 + 2H2

Sau p h h h g thu duac hbn h q ~ khi Z g8m CzH6, C2H4, Hz du va C2H2 du, ti kh6i c6a h6n hqp Z so vbi hidro b h g 8,s. D& t o h b6 luqng h8n hqp kki Z di c h m qua binh d w g dung djch brom du, sau khi c6c p h h h g xAy ra h o h t o h thiy cbn 3,36 Iit h8n h9p khi (dktc) t11oAt ra khdi blnh. Tinh t h h h p h h p h h t r h theo thk tich cfia m8i khi trong h8n hqp 2.