viet phuang trinh phan irng xay ra trong cac trurong hop sau: b.. Tir quang pirit sat china thanh phan chinh la FeS2 va mot so chat can thie't khac coi nhu c6 viet cac phuang trinh phan
Trang 1DAI HOC TAN TAO
TRVONG THPT NANG KHIEU
Id THI TUYEN SINH LOP 10 NAM HOC 2015 — 2016
MON THI: HOA HOC (CHUYEN)
Ngay thi: 05/06/2015 Thai gian lam bai: 150 phut
BE CHiNH THITC
Caul: ,(2,5 diem)
a viet phuang trinh phan irng xay ra trong cac trurong hop sau:
b Tir quang pirit sat (china thanh phan chinh la FeS2) va mot so chat can thie't khac coi nhu c6 viet cac phuang trinh phan irng dieu che Fe(OH)2
c Co cac chat ran sau dung trong tong lo rieng biet bi mat nhan: Na20, BaSO4, MgC12, FeC13, Na; chi dung them H2O de phan biet chung Viet phuang trinh phan frng (n6u co)
Cau 2: (1,5 diem)
a Can bao nhieu ml H2O (khOi lacing rieng la 1 g/m1) va bao nhieu ml dung dich H2SO4 98% (kh6i luting rieng la 1,84 g/m1) de pha thanh 1 lit dung dich H2SO4 20% Xem the tich khOng thay dOi trong qua trinh pha che
b Cho kim loci M tac dung vira du vai dung dich H2SO4 20% (loang), thu dugc dung dich X, trong do muOi sunfat thu dugc co nong di) 23,43% Xac dinh kim loai M
Cau 3: (2,0 dram)
a Tir xenluloza, viet cac phuang trinh phan *rig dieu ch6 nrou etylic
b Tir 100 kg 1* cua (china 50% xenluloza) dieu che dtrgc bao nhieu lit nrgu etylic 45° NC& hieu suat ca qua trinh slat 75%, khOi lacing rieng cua rugu etylic la 0,8 g/ml
c Lay 200 ml ruou etylic 45° tac dung voi Na (du) Tinh the tich khi hidro thu ducic (dktc)
(Chit y: khoi luting rieng cua ntrac va rugu etylic da cho b cac cau tren)
Cfiu 4: (2,0 diem)
Cho m gam Mg vao 100 ml dung dich gom CuSO4 2M va FeSO4 3M, thu dirge chat ran X va dung dich Y Cho Y tac dung \Iasi dung dich Na011,d1r, loc lay ket Ulla, dem nung ket trong dieu kin khong c6 khong khi, thu dirge 26,4 gam chat ran Cac phan img xay ra hoan toan viet phuang trinh phan ung )(ay ra va tinh gia tri m
Cau 5: (2,0 diem)
a Hon hop X Om C2H4, C3144, C4H10 c6 the tich 8,96 lit DAn h8n hap X di cham qua dung dich nuov brom du, thay binh brom tang 10,8 gam va CO 2,24 lit khi thoat ra Cac khi do o dktc, cac phan irng xay ra hoan toan
- Tinh % the tich cac khi trong 116n hop X
- Dot chay h8n hop X tren, rOi clan toan bo san pham chay qua binh dung dung dich ntrac voi trong (du) KhOi luting dung dich ntrOc \Tel tang hay giam bao nhieu gam so Wei ban dau?
b Hop chat hint ca X (C, H, 0), trong do oxi chiem 26,67% ye khiSi luting Biet rang trong phan
dr X chi china 1 nguyen tin oxi
- Xac Binh cong thirc phan tin dm X
- Viet cac cong thirc cau tao c6 the c6 dm X
Cho biet: H = 1; C = 12; 0 = 16; Na = 23; Mg = 24; S = 32; Ca = 40; Fe = 56; Cu = 64; Br = 80 Lira Thi sinh khong Jaw see dung bang he th'dng tudn hoan cac nguyen to hod hoc
HET