Kimyoviy bog‘lanish

DTM 2012
1. Temir(III) nitratning dissotsiyalanmagan molekulalaridagi atomlar soni dissotsiyalangan molekulaladan hosil bo’lgan kationlar soniga teng bo’lsa, temir(III) nitratning dissotsiyalanish darajasini (α_%) aniqlang.
A) 87 B) 76 C) 81 D) 93

2. Temir(III) sulfatning dissotsiyalanmagan molekulalaridagi atomlar soni dissotsiyalangan molekulaladan hosil bo’lgan ionlar soniga teng bo’lsa, temir(III) nitratning dissotsiyalanish darajasini (α_%) aniqlang.

A) 85 B) 89 C) 94,4 D) 77

3. Temir(III) xloridning dissotsiyalanmagan molekulalaridagi atomlar soni dissotsiyalangan molekulaladan hosil bo’lgan kationlar soniga teng bo’lsa, temir(III) nitratning dissotsiyalanish darajasini (α_%) aniqlang.

A) 70 B) 80 C) 66,7 D) 90
4. Ammoniy fosfatning dissotsiyalanmagan molekulalari tarkibidagi atomlar soni dissotsiyalangan molekulalardan hosil bo’lgan abionlar soniga teng bo’lsa, ammoniy fosfatning dissotsiyalanish darajasini (α_%) toping.
A) 90 B) 83 C) 995 D) 87

5. Dissotsiyalanganda eng ko’p ion hosil qiladigan, gidrolizga uchramaydigan tuzni aniqlang.

A) kaliy fosfat B) kaliy xlorid
C) aluminiy sulfat D) kaliy sulfat

6. Xrom(III) nitratning dissotsiyalanmagan molekulalari tarkibidagi atomlar soni dissotsiyalangan molekulalardan hosil bo’lgan anionlar soniga teng bo’lsa, xrom(III) nitratning dissotsiyalanish darajasini (α_%) hisoblang.

A) 87 B) 81 C) 76 D) 93

7. Xrom(III) sulfatning dissotsiyalanmagan molekulalari tarkibidagi atomlar soni dissotsiyalangan molekulalardan hosil bo’lgan anionlar soniga teng bo’lsa, xrom(III) sulfatning dissotsiyalanish darajasini (α_%) aniqlang.

A) 89 B) 85 C) 77 D) 94,4


DTM 2013
1. CaCl₂ eritmasi tarkibidagi anionning massasi 2,83∙10^-20 g ( suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi kationlar sonini hisoblang(α=80%).
A) 240 B) 720 C) 480 D) 60

2. Temir(III) nitrat eritmasi tarkibidagi anionning massasi 1,39∙10^-19 g (suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi tuz molekulalari sonini aniqlang(α=75%).

A) 1350 B) 1050 C) 700 D) 150

3. Temir(III) nitrat eritmasi tarkibidagi anionning massasi 1,39∙10^-19 g (suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi anionlar sonini aniqlang(α=75%).

A) 1350 B) 1050 C) 700 D) 150

4. Temir(III) nitrat eritmasi tarkibidagi anionning massasi 1,39∙10^-19 g (suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi kationlar sonini aniqlang(α=75%).

A) 1350 B) 450 C) 700 D) 150

5. Al₂(SO₄)₃ eritmasi tarkibidagi kationning massasi 2,87∙10^-20 g (suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi kationlar sonini hisoblang.(α=80%)

A) 640 B) 1600 C) 960 D) 80

6. Mg(NO₃)₂ eritmasi tarkibidagi kationning massasi 1,3954∙10^-20 g (suvning dissotsiyalanishini hisobga olmang) bo’lsa, eritmadagi anionlar sonini aniqlang.(α=70%)

A) 350 B) 1050 C) 700 D) 150

7. Al₂(SO₄)₃ eritmasi tarkibidagi anionning massasi 1,531∙10^-19 g (suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi ionlar sonini hisoblang.(α=80%)

A) 640 B) 1600 C) 960 D) 80

8. 0,1 M li 400 g (ρ=1,25) aluminiy sulfat eritmasidagi aluminiy kationining mol miqdorini toping.(suvning dissotsilanishini hisobga olinmasin). Gidrolizlanish darajasi 5% ga teng.

A) 0,096 B) 0,162 C) 0,07 D) 0,061

9. 0,1 M li 400 g (ρ=1,25) aluminiy sulfat eritmasidagi sulfat anionining mol miqdorini toping.(suvning dissotsilanishini hisobga olinmasin). Gidrolizlanish darajasi 5% ga teng.

A) 0,096 B) 0,162 C) 0,07 D) 0,061

10. Mg(NO₃)₂ eritmasi tarkibidagi kationning massasi 1,3954∙10^-20 g (suvning dissotsiyalanishini hisobga olmang) bo’lsa, eritmadagi kationlar sonini aniqlang.(α=70%)

A) 350 B) 1050 C) 700 D) 150

11. Aluminiy sulfat eritmasi tarkibidagi anionlarning massasi 71,76∙10^-24 g (suvning dissotsilanishini hisobga olmang) bo’lsa, dissotsilangan molekulalar sonini toping.(α=75%)

A) 50 B) 300 C) 450 D) 150

12. Aluminiy sulfat eritmasi tarkibidagi anionlarning massasi 71,76∙10^-24 g (suvning dissotsilanishini hisobga olmang) bo’lsa, eritmadagi anionlar sonini toping.(α=75%)

A) 50 B) 300 C) 450 D) 150

13. Mg(NO₃)₂ eritmasi tarkibidagi anionning massasi 7,21∙10^-20 g (suvning dissotsiyalanishini hisobga olmang) bo’lsa, eritmadagi tuz molekulalari sonini hisoblang (α=70%).

A) 350 B) 1050 C) 700 D) 150

14. Mg(NO₃)₂ eritmasi tarkibidagi anionning massasi 7,21∙10^-20 g (suvning dissotsiyalanishini hisobga olmang) bo’lsa, eritmadagi ionlar sonini aniqlang.(α=70%)

A) 350 B) 1050 C) 700 D) 150