Kimyoviy bog‘lanish

00-3son-43.
94. Elektrolitning dissotsilanish darajasi 10% ga teng bo‘lsa, eritmadagi 3,01•10²³ ta molekulaning qanchasi ionlarga parchalanadi?
A) 3,01•10²² B) 3,01•10²³ C) 3,01•10²¹
D) 6,02•10²³ E) 6,02•10²²
00-9son-50.
95. Konsentratsiyasi 0,125 mol/l bo‘lgan temir(III) sulfat eritmasining dissotsilanish darajasi 1,0 bo‘lganda, kation va anion konsentratsiyalarini (mol/l) hisoblang.
A) 0,5 va 0,75 B) 0,250 va 0,375 C) 2 va 3
D) 0,30 va 0,25 E) 0,375 va 0,250
01-7son-39.
96. Dissotsilanish konstantasi 2,8•10^-8 bo‘lgan gipoxlorit kislotaning 25⁰C da 0,02 molyarli eritmasining dissotsilanish darajasini hisoblang.
A) 1,7•10^-3 B) 1,7•10^-5 C) 2,8•10^-6 D) 1,5•10^-3 E) 1,2•10^-4
01-8son-44.
97. Ma’lum sharoitda kalsiy gidroksidning 0,5 molyarli eritmasida uning 0,175 mol miqdori ionlarga dissotsilangan. Erigan moddaning dissotsilanish darajasini hisoblang.
A) 0,3 B) 0,4 C) 0,35 D) 0,45 E) 0,48
02-2son-39.
98. Agar elektrolitning dissotsilanish darajasi α=50% bo‘lib, eritmaga 5•10²⁵ ta molekula kiritilgan bo‘lsa, elektrolitning nechta molekulasi dissotsilangan?
A) 7,5•10²⁵ B) 3,5•10²⁶ C) 2,5•10²⁴ D) 2,5•10²⁵ E) 0,25•10²⁵
02-7son-8.
99. Hajmi 5 ml bo‘lgan 27% li eritmada erigan moddaning massasi 1,5 g bo‘lsa, eritmaning zichligini (g/ml) aniqlang.
A) 1,12 B) 1,08 C) 1,11 D) 1,09 E) 1,14
02-7son-11.
100. Bir litr suvdagi vodorod ionlari soni 6,02•10¹⁶ ga teng. Ionlarga dissotsilangan suv molekulasining bittasiga nechta suv molekulasi to‘g‘ri kelishini hisoblang.
A) 4,55^.10⁹ B) 5,56^.10⁸ C) 5,56^.10⁹ D) 4,55^.10⁸ E) 4,55^.10⁷
02-11son-2.
101. Ma’lum hajmdagi kuchsiz bir negizli kislota eritmasida 6,02^.10¹⁸ ta vodorod ionlari va 5,96^.10²⁰ kislota molekulasi bor. SHu kislotaning α (%) qiymati nechaga teng?
A) 1,5 B) 1,0 C) 2,0 D) 3,4 E) 5,6
03-1son-34.
102. Dissotsilanish darajasi 0,032 ga teng bo‘lgan 0,2 M li chumoli kislotaning dissotsilanish konstantasini aniqlang.
A) 1,5^.10^-3 B) 2^.10^-3 C) 2^.10^-4 D) 2,5^.10^-4 E) 3^.10^-4
03-1son-35.
103. Gipoxlorit kislotaning dissotsilanish konstantasi 5•10^-8 ga teng bo‘lsa, uning 0,1 M eritmasidagi vodorod ionlari konsentratsiyasini (mol/l) aniqlang.
A) 7•10^-5 B) 2,5•10^-4 C) 9•10^-5 D) 4,5•10^-4
E) 6•10^-5
03-8son-19.
104. Dissotsilanish konstantasi 1,77^.10^-5 ga teng bo‘lgan 0,1 M NH₄OH eritmasining dissotsilanish darajasi va gidroksid ionining konsentratsiyasini (mol/l) hisoblang.
A) 3,18%; 2,64•10^-3 B) 4,42%; 3,24•10^-3
C) 2,24%; 1,88•10^-4 D) 1,96%; 1,12•10^-3
E) 1,33%; 1,33•10^-3
03-8son-21.
105. Kaliy nitrat eritmasining dissotsilanish darajasi 72% ga teng. 0,5 M li tuz eritmasining 200 ml miqdoridagi ionlar sonini hisoblang.
A) 1,3•10²³ B) 1,8•10²³ C) 0,13•10²² D) 0,43•10²³
E) 0,87•10²³
99-6son-83.
106. Elektrolitlarda qanday kimyoviy bog‘lar mavjud bo‘ladi?
1. qutbli kovalent; 2. ionli; 3. kovalent;
4. metallik; 5. vodorod;
A) 1,3B) 2,4C) 1,2 D) 3,5 E) 4,5