of xuAo sAr ngc srNn crol
NIm hpc 2024-2025
uOx, xnrN : (cnAr vA sI/ BI6N o6I ctl cnAr)
ldPt k€ thdi gian giao di
Thdi gian ldm bai 120 htit, kh6n
Da thi g6m 03 trang
C6l.L l. (3,0 didm) Ng\y€:n t5 X nim d 6 s6 ll trong bang tuan hoan c6c nguy6n tii ho6 hqc, le
nguy6n t6 c6 trong thAnh phAn cua muiii an.
a) C6 bao nhi6u electron trong nguyCn tri nguyen t6 X? Sti <Ion vi cliQn tich hat nhdn nguy€n tri
X bing bao nhiOu?
b) Hdy ve m6 hinh nguy6n tt X vi cho bi6t nguy6n trl nguyOn t6 X c6 bao nhiOu lop electron,
bao nhi€u electron.d lop ngoii cirng? Tir cl6 cho bi6t X thuQc chu ki miy, nh6m miy trong bing tuin
hoirn c6c nguy6n t6 ho6 hqc?
c) Bi6t h?t nhan r.rguyen tt X c6 12 neutron, tinh kh6i luqng nguy6n tu cia X theo dorr vi amu
vi d<nr v! gam. Gin thitit I amu c6 khOi luqng beng 1,67.10-24 gam.
d) Gidi thich vi sao c6 thi3 coi kA6i lugng nguyOn trl t6p trung d hat nhdn.
CAu2. (3,0 didm)
1. Phin lopi (oxide, acid, base, mutiil vd vi6t t6n cria c6c hqp chdt sau: COu, NazO, HzSOa,
CuSO+, Mg(OH)r, FeClz.
2. E6 ph6o hoa c6 nhiAu mdu sic khdc nhiu, nguoi ta sE cho vdo thuiic ph6o circ chdtphg gia
t4o mdu. C6,c ch6t phq gia niy thudng li c6c mu6i cua mQt s6 kim lo4i, trong d6 c6 mu6i A g6m kim
loai M vi nguy6n t6 chlorine, trong d6 M chii:m 47 ,41%o theo khi5i lugng.
a) Xrlc dinh c6ng thric hoi hgc cria A. Bi6t A c6 khili luqng phen tri lA 135 amu.
b) Cho bi6t t€n cria hqp ch6t A.
Cnu3.( 4,0 didm)
1. Cho l8 gam h5n hqp X gdm Fe, Zn, FezOy ZnO viro dung dich HCl. Sau phan rmg th6y
thoriLt ra 9,916 lit ktri Hu (dkc), sinh ra 1,8 gam ItrzO vi c6n lai 6,56 gam ctr,it rin khdng tan. Loc b6
chAt rin kh6ng tan, dem c6 c4n cAn th4n dung dich thu duo. c m gam h6n hqp mu6i khar. Tinh ..
2. Cho bang dQ tan cta m$t s6 chdt trong nudc theo nhiQt d6 nhu sau:
a) Hiy cho bi
+ Ch6t nio c6 dd tan trong nu6c giim khi nhiOt dg tang?
+ ChAt ndo c6 dO tan trong nu6c it phg thuQc nhiet d9?
b) Calcium hydroxide Ca(OH)z lA ch6t rin mdu trlng, it tan trong nudc, khi hod tan trong nu6c
tao the,nh phAn dung dich duo. c ggi ld nu6c v6i trong, cdn l4i li d4ng huydn pht kh6ng tan miu tring.
O 20"C, dung dich bio hoir Ca(oH)z c6 khrii luqng riOng ld 1,02 gam/ml. C6 tdn tai dung dlch
Ca(OH)z 0,05M d 20'C khdng? Gi6i thich th6ng qua tinh toin.
Nhi6t d0
("c) NHrCI Ca(OH)z NaCl NIIj KNOr
20 87,6 37,2 I0 73 I 1,5 35,9 45,0 3I6
94 941,4 0I6 9 536,1 39,0
40 102,0 45,8 0,141 6 536,4
50 140,0 50,4 4 536,8 85,0
60 164,0 55,3 0,l2l J037,1 12,0 I 10,0
70 190,0 60,2 0,r03 2038,0 8,0 135,0
80 220,0 65,6 0,0086 I538,2 50 165,0
PHONG GIAO DUC VA OAO r4O
HUYEN TRTIC NINH
DE CHINH THT/C
DQ tan (gam/100 gam nu6c)
NaNO: SOz
30 45,3
28,0 61,3
0,132 18,0
