Mol-modda miqdori(maruza)

MODDA MIQDORI – MOL (n yoki ѵ)
M = m/n – Moddaning molyar massasini topish. Birligi – g/mol
m = n ⋅ M – Moddaning massasini topish. Birligi – mg, gr, kg
n = m/M – Moddaning molini topish. Birligi – mol
II – daraja
1. 300 g kalsit necha mol kelishini hisoblab toping?
A) 1 mol B) 2 mol C) 3 mol D) 4 mol
2. 370 g so’ndirilgan ohak necha mol kelishini hisoblab toping?
A) 10 mol B) 15 mol C) 5 mol D) 100 mol
3. 171 g shakar (C₁₂H₂₂O₁₁) necha mol kelishini hisoblab toping?
A) 0,5 mol B) 2 mol C) 3 mol D) 4 mol
4. 4,9 g monogidrat necha mol kelishini hisoblab toping?
A) 0,25 mol B) 0,5 mol C) 0,05 mol D) 0,2 mol
5. 82 g sfen necha mol keladi?
A) 0,25 mol B) 0,5 mol C) 1 mol D) 0,2 mol
6. 168 g so’ndirilmagan ohak necha mol keladi?
A) 25 mol B) 2,5 mol C) 3 mol D) 4 mol
7. 146 g dimetilformamid necha mol keladi?
A) 2 mol B) 3 mol C) 4 mol D) 5 mol
8. 70 g urotropin necha mol keladi?
A) 0,2 mol B) 0,5 mol C) 0,4 mol D) 0,05 mol
9. 2 mol kobalt yaltirog’i necha gramm kelishini hisoblang?
A) 182 gr B) 246 gr C) 332 gr D) 415 gr
10. 3 mol krokoit tuzi necha gramm kelishini hisoblang?
A) 375 gr B) 750 gr C) 1875 gr D) 1125 gr
11. 5,5 mol fernikel necha gramm keladi?
A) 735,3 gr B) 601,6 gr C) 868,98 gr D) 999 gr
12. 6,3 gr HNO₃ va 16,6 gr kobalt (III) oksid aralashmasi xlorid kislotada eriganda necha mol gaz hosil bo’ladi? A) 0,1 B) 0,2 C) 0,3 D) 0,35
13. 0,25 mol xlorli ohak necha gramm keladi?
A) 12,7 mol B) 31,75 gr C) 63,5 gr D) 65,3 gr
14. 0,5 mol (Ni, Mg)_x(OH)₈Si₄O₁₀ ni massasini toping. 5 ta nikelning magniyli silikati 210 ta atom saqlaydi.
A) 900 gr B) 450 gr C) 600 gr D) 300 gr
15. Massasi 490 gr bo’lgan bertolle tuzining parchalanishidan hosil bo’lgan O₂ ning moliga teng miqdordagi H₂ ni massasini toping A) 3 B) 6 C) 9 D) 12
16. 5 mol toluidin necha gramm keladi?
A) 460 gr B) 535 gr C) 540 gr D) 565 gr
17. 1,9 mol toluidin tarkibidagi atomlar soni necha gramm asetanilidda bo’ladi? A) 229,5 molB) 265 gr C) 202,5 gr D) 206,5 gr
18. 3,0 mol ftorapatit tuzi necha gramm keladi?
A) 1085 gr B) 1512 gr C) 1764 gr D) 3024 gr
19. 0,005 mol amilaza (C₆H₁₀O₅)_n ning massasi 4860 gr keladi. n ni qiymatini toping.
A) 6000 B) 4000 C) 2000 D) 1000
20. 0,0025 mol amilaza (C₆H₁₀O₅)_n+m ning massasi 2025 g keladi. n va m ning nisbati 1,5 : 1 bo’lsa, n ni qiymatini toping. A) 5000 B) 3000 C) 2000 D) 1000
21. 3 mol ,,o’yuvchi kislota” necha gramm keladi?


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A) 109,5 gr B) 294 gr C) 115 gr D) 138 gr
22. 4,5 mol angidrit massasiga teng bo’lgan sirka angidritni molini toping. A) 5 mol B) 4 mol C) 6 mol D) 6,5 mol
23. Massasi 5,715 g bo’lgan nitrozilsulfat kislotadagi atomlar soniga teng miqdorda atom saqlagan (0,06 molida) diinni formulasin toping.
A) C₂H₂ B) C₄H₂ C) C₅H₄ D) C₆H₆
24. Kalsiy sianamidning 54 g dagi atomlar soniga teng miqdorda atom saqlagan 0,3 mol diinning formulasini toping.
A) C₂H₂ B) C₄H₂ C) C₅H₄ D) C₆H₆
25. Kalsiy sianamidning qanday massasida (gr) 24 g metandagiga teng keladigan uglerod atomlari bor?
A) 120 gr B) 240 gr C) 150 gr D) 160 gr
26. Berk idishga 14 g yarim mol gaz berkitilgan. Shu idish ichidagi noma’lum gaz (lar) ni aniqlang? A) Is gazi B) etilen C) kremniy D) A va B
27. Berk idishga 22 g yarim mol gaz berkitilgan. Shu idish ichidagi noma’lum gazni aniqlang? A) Ne B) Ar C) quruq muz D) uglerod dioksid
28. 183,75 g bertolle tuzi va x g Seyze tuzi sariq kristallari tarkibidagi atomlar soni nisbati 1 : 2,24 bo’lsa, x g ni aniqlang. A) 463,8 g B) 386,5 g C) 579,75 g D) 309,2 g
29. Chorak mol potash va nimchorak mol alkatriendagi atomlar soni nisbati 1,5 : 1 bo’lsa, noma’lum alkatrienni toping. A) C₄H₄ B) C₅H₆ C) C₆H₈ D) C₇H₁₀
30. Har biri 1400 gr li tarkibida 60% temir saqlagan 2 dona temir soqqachalarini umumiy molini aniqlang?
A) 15 mol B) 20 mol C) 30 mol D) 50 mol
31. Beshta molekulasini massasi 3,652 ∙ 10_-25 kg bo’lgan gazni nisbiy molekulyar va molyar massasini toping. A) 44 g/mol; 44 g B) 44 mol/g; 44 C) 44 g/mol; 44 D) 44 va 44 g/mol
32. 1,5 mol CO₂ ni massasiga teng bo’lgan azot (I) oksidning molini aniqlang.
A) 44 mol B) 0,1 mol C) 1 mol D) 1,5 mol
33. 1,5 mol xalkopirit (CuFeS₂) ni massasidan 69,6 g ga kam bo’lgan bornit (Cu₃FeS₃) ning molini aniqlang. A) 0,6 mol B) 0,8 mol C) 1 mol D) 1,2 mol
34. 3 mol gausmanit (Mn₃O₄) tarkibidagi kislorod molekulasi necha gramm braunit (Mn₂O₃) tarkibida bo’ladi? A) 474 gr B) 601 gr C) 916 gr D) 632 gr
35. 1,73 mol malaxitni massasiga teng bo’lgan azuritning molini aniqlang. A) 0,85 mol B) 0,34 mol C) 1,2 mol D) 1,11 mol
36. Kislorod va metanning teng mol miqdordagi 1,25 mol aralashmasining molyar massasini aniqlang.
A) 24 g/mol B) 48 g/mol C) 44 g/mol D) 16 g/mol
37. Kislorod va metanning teng mol miqdordagi 0,75 mol aralashmasining molyar massasini aniqlang.
A) 24 g/mol B) 12 g/mol C) 44 g/mol D) 48 g/mol
38. ¼ gr – molekula suvni massasidan ¼ marta katta bo’lgan suvni molini aniqlang. A) 0,025 molB) 0,05 mol C) 0,0625 mol D) 0,1 mol
39. 1,5 gr – molekula monogidratni massasini aniqlang?
A) 1,5 gr B) 49 gr C) 73,5 gr D) 147 gr
40. ¾ gr – atom kislorodni massasidan ¾ marta kichik bo’lgan kislorod molekulasini molini aniqlang. A) 0,28 B) 0,5 mol C) 0,56 mol D) 1 mol
41. ¾ gr – atom kislorodni massasidan ¾ marta katta bo’lgan suvni molini aniqlang. A) 0,28 B) 0,5 mol C) 0,56 mol D) 1 mol
42. a) 1,5 gr – atom azot, b) 0,6 gr – atom ftor, v) 15 gr – atom temir necha gramm keladi?
A) a – 21 gr, b – 11,4 gr, v – 420 gr B) a – 42 gr, b – 11,4 gr, v – 420 gr
C) a – 14 gr, b – 22,8 gr, v – 840 gr D) a – 21 gr, b – 11,4 gr, v – 840 gr
43. a) 6 gr kislorod, b) 5 gr vodorod, v) og’irligi 54 gr bo’lgan alyuminiy choy qoshig’i necha gr – atomni tashkil etadi?
A) a – 0,375 gr – atom, b – 5 gr - atom, v – 2 gr – atom B) a – 0,325 gr – atom, b – 5 gr – atom, v – 2 gr – atom C) a – 0,375 gr – atom, b – 2,5 gr – atom, v – 4 gr - atom


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D) a – 0,125 gr – atom, b – 10 gr – atom, v – 2 gr – atom
44. 583 probali oltinning 1 grammi 137 ming 20 so’m turadi. 1 gramm – atom oltin necha pul turadi?
A) 22,1 mln so’m B) 38 mln so’m C) 46,3 mln so’m D) 52,5 mln
45. a) 0,5 gramm – molekula azot, b) 1 gramm – molekula mis (II) oksid, v) 1 gramm – molekula kuporos moyi necha gramm kelishini hisoblab toping.
A) a – 14 gr, b – 80 gr, v – 98
B) a – 14 gr, b – 40 gr, v – 49 gr
C) a – 28 gr, b – 80 gr, v – 98 gr
D) a – 28 gr, b – 40 gr, v – 49 gr
46. a) 1,5 gramm – molekula kislorodda, b – 1 gramm – molekula vodorodda, v) 2 gramm – molekula argonda necha gramm – atom bo’ladi?
A) a – 2, b – 2, v – 2
B) a – 3, b – 1, v – 1
C) a – 3, b – 2, v – 2
D) a – 2, b – 2, v – 1
III – daraja
50. 2,5 mol ammoniy gipofosfit tarkibidagi vodorod atomlari sonidan ¼ marta ko’p vodorod saqlagan fosfoniy fosfit
massasidan 22,5 g ga kam massada vodorod atomini tutgan izatonni molini toping.
A) 5 mol B) 6 mol C) 7 mol D) 8 mol
51. 51,6 g kaolindan olinadigan kislorod necha g ortaklaz tarkibida bo’ladi? A) 61,5 B) 62,55 C) 65,55 D) 42,57
52. 1 mol spirtning oksidlanishidan hosil bo’lgan al’degidning massasi 0,5 mol shu spirtning yonishidan hosil bo’lgan
karbonat angidrid massasidan 0,8787 marta katta bo’lsa, 0,25 mol spirtning massasini (g) toping.
A) 13 B) 15 C) 7,5 D) 20
53. 1 mol spirtning oksidlanishidan hosil bo’lgan al’degidning massasi 0,3 mol shu spirtning yonishidan hosil bo’lgan
karbonat angidrid massasidan 18,4 g ga ko’p bo’lsa, 0,25 mol spirtning massasini (g) toping.
A) 25 B) 15 C) 30 D) 60
54. 1,5 mol spirtning oksidlanishidan hosil bo’lgan al’degidning massasi 0,46 mol shu spirtning yonishidan hosil bo’lgan
karbonat angidrid massasidan 1,334 marta katta bo’lsa, 18,5 g spirt miqdorini (mol) toping.
A) 1 B) 0,5 C) 0,25 D) 0,125
55. 1,4 mol spirtning oksidlanishidan hosil bo’lgan al’degidning massasi 0,25 mol shu spirtning yonishidan hosil bo’lgan
karbonat angidrid va suvning massasidan 38,4 g ga ko’p bo’lsa, 11 g spirt miqdorini (mol) toping.
A) 1 B) 0,5 C) 0,25 D) 0,125
56. Quyidagi reaksiyadagi x, y va z larni toping. 1/8C_xH_y(OH)_x-2 + zO₂ → ¾CO₂ + ¾ - 0,375H₂O
A) 6; 4; 1,875 B) 6; 4; 1,375 C) 6; 2; 0,6875 D) 4; 8; 4
57. Quyidagi reaksiyadagi x, y va z larni toping. 1/5C_xH_y(OH)_x-4 + zO₂ → 2CO₂ + ¾ + 0,05H₂O
A) 10; 4; 0,9 B) 10; 2; 1,8 C) 5; 8; 1,5 D) 14; 4; 0,9
58. Quyidagi reaksiyadagi x, y va z larni toping. ¼ C_xH_yN_0,5x O_x-6 + zO₂ → 2CO₂ + ½ N₂ + 5/4H₂O
A) 11; 6; 2,75 B) 8; 10; 2,625 C) 8; 9; 4,75 D) 8; 10; 2,375
59. 54 g diopsit tarkibida necha mol kremniy mavjud?
A) 0,5 mol B) 1 mol C) 1,5 mol D) 2 mol
60. 0,5 mol anortit (CaO ⋅ Al₂O₃ ⋅ 2SiO₂) tarkibidagi kislorodni g – atomini aniqlang.
A) 2 B) 8 C) 4 D) 6
61. 8,4 g fosterit tarkibidagi xMgO ⋅ SiO₂ kislorodni massasi magniyning massasidan 1,333 marta ko’p bo’lsa, x ni qiymatini aniqlang.
A) 1 B) 2 C) 3 D) 4
62. 9 g xMgO ⋅ SiO₂ tarkibli mineraldagi kislorodni massasi magniyning massasidan 1,111 marta ko’p bo’lsa, x ni qiymatini aniqlang.
A) 1 B) 2 C) 3 D) 4
63. 34,02 grammli mineral Mg₃[Si_xO₅]_x(OH)_x tarkibidagi magniyning massasi kislorodni massasidan 10,8 g ga kam bo’lsa, x ni qiymatini toping.
A) 1 B) 2 C) 3 D) 4
64. Quyidagicha tarkibli minerallar berilgan Na_xSi_yAl_yO₂₃ va Na_ySi_xAl_xO₁₇ bo’lsa, y ni qiymatini toping. A) 1 B) 2 C) 4 D) 6
65. 2 mol uzum va 4 mol olma kislota necha mol natriy bilan birika oladi?
A) 12 mol B) 16 mol C) 18 mol D) 20 mol
66. Limon va salitsil kislotalarga natriy teng mol miqdorda birikishi uchun bu kislotalar necha mol nisbatida olinishi
kerak?
A) 1 : 4 B) 4 : 2 C) 2 : 4 D) 2 : 3
67. Askorbin kislotaning enol shakliga 1 mol alyuminiy birikkan bo’lsa, bu molekuladagi sp₃ – s orbitallar sonini aniqlang. A) 2 B) 3 C) 4 D) 5
68. 4 mol ruxli tanga nam havoda oksidlanganda uning massasi necha grammga ortadi?
A) 40,5 g B) 60 g C) 76 g D) 162 g
69. 5,55 kg li misli tog’ora nam havoda qoldirilganda uning mingdan bir qismida (massa jihatidan) yashil dog’lar hosil
bo’lgan. To’g’ora yuzasidagi necha mol mis oksidlangan?
A) 0,001 B) 0,086 C) 0,025 D) 0,05
70. Suv 2000°C gacha qizdirilganda suvning faqat 1,8% i parchalangan (hajm jihatidan) bo’lsa, hosil bo’lgan gazlar
aralashmasining o’rtacha molekulyar massasini aniqlang.
A) 12 B) 17,84 C) 18,8 D) o’zgarmaydi
71. Suv 2700°C gacha qizdirilganda suvning faqat 11% i parchalangan (hajm jihatidan) bo’lsa, hosil bo’lgan gazlar aralashmasining o’rtacha molekulyar massasini aniqlang.
A) 12 B) 17,06 C) 18,5 D) o’zgarmaydi
72. Karbonat angidrid bilan to’ldirilgan idishning massasi 422 g bo’lib, shu idishning argon bilan massasi 420 g, teng mol
miqdorda olingan argon va noma’lum gaz bilan shu idishning massasi 414 g ga teng. Noma’lum gazning molekulyar
massasini toping?A) metan B) etan C) propan D) butan
IV – daraja
74. Mol miqdorlari x : y nisbatda aralashtirilgan ikkita oddiy gazlar aralashmasi portlatilgan. Reaksiya
natijasida suv bug’lari va ortiqcha kislorod gazi hosil bo’lgan. Hosil bo’lgan gazlar aralashmasining o’rtacha
og’irligi va dastlabki gazlar aralashmasining o’rtacha og’irliklari nisbati 4 : 3,5 bo’lsa, dastlabki gazlar
aralashmasi qanday nisbatda olingan? A) 2 : 4 B) 4 : 6 C) 5 : 9 D) 2 : 6
75. Ma’lum idishga faqatgina 1/2 mol miqdordagi gazlar aralashmasi sig’adi. Agar teng mol miqdorda
olingan N₂ va X gazlar aralashmasi shu idishga to’ldirilsa, idishning massasi 15 gr ga ortadi. X – noma’lum
gazni aniqlang? A) H₂ B) O₂ C) N₂ D) F₂
76. Aralashma O₂, He va X gazlardan iborat. Unda kislorod va geliy miqdorlari, geliy va X massalari bir xil
ekanligi ma’lum. Aralashma molyar massasi 10 gr/mol bo’lsa, X gazni formulasini aniqlang?
A) H₂ B) O₂ C) N₂ D) F₂
77. Aralashma N₂, CH₄ va X gazlardan iborat. Unda azot va metan miqdorlari, azot va X massalari bir xil
ekanligi ma’lum. Aralashma molyar massasi 18 gr/mol bo’lsa, X gazni formulasini aniqlang?
A) NH₃ B) CO₂ C) BH₃ D) F₂
78. Aralashma CO₂, Ar va X gazlardan iborat. Unda karbonat angidrid va argon miqdorlari, argon va X
massalari bir xil ekanligi ma’lum. Aralashma molyar massasi 31 gr/mol bo’lsa, X gazni formulasini aniqlang?
A) He B) O₂ C) N₂ D) Ne