Hojimurod Toshpulatov 1 eritma dispers sistemalar. Eritmalar. Hojimurod Toshpulatov
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9-Dars. Dispers sistema. Eritma. Eruvchanlik.sharqkimyo unlocked
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Hojimurod Toshpulatov
26 A) 31,25 B) 200 C) 182 D) 20 38. 30 °C da to’yingan eritmada suvning massasi tuzning massasidan 2,5 barobar ko’p bo’lsa, tuzning shu haroratdagi eruvchanligini aniqlang. A) 25 B) 60 C) 40 D) 35 39. 30 °C da to’yingan eritmada suvning massasi tuzning massasidan 1,25 barobar ko’p bo’lsa, tuzning shu haroratdagi eruvchanligini aniqlang. A) 12,5 B) 50 C) 40 D) 80 40. 30 °C da to’yingan eritmada suvning massasi tuznin g massasidan 5/3 barobar ko’p bo’lsa, tuzning shu haroratdagi eruvchanligini aniqlang. A) 30 B) 60 C) 24 D) 40 41. 30 °C da to’yingan eritmada suvning massasi tuzning massasidan 4/3 barobar ko’p bo’lsa, tuzning shu haroratdagi eruvchanligini aniqlang. A) 75 B) 60 C) 20 D) 90 42. Biror tuzning 80 ℃ dagi eruvchanlik koeffitsiyenti uning 20 ℃ dagi eruvchanlik koeffitsiyentidan 2,5 barobar ko’p. Agar shu tuzning 80 ℃ da to’yingan 300 g eritmasi 20℃ ga qadar sovutilganda 60 g tuz cho’kmaga tushishi ma’lum bo’lsa, shu tuzning 80℃ dagi eruvchanlik koeffitsiyentini aniqlang. A) 50 B) 20 C) 30 D) 75 43. Biror tuzning 80 ℃ dagi eruvchanlik koeffitsiyenti uning 20 ℃ dagi eruvchanlik koeffitsiyentidan 1,5 barobar ko’p. Agar shu tuzning 80 ℃ da to’yingan 320 g eritmasi 20℃ ga qadar sovutilganda 40 g tuz cho’kmaga tushishi ma’lum bo’lsa, shu tuzning 20℃ dagi eruvchanlik koeffitsiyentini aniqlang. A) 60 B) 20 C) 30 D) 45 44. Biror tuzning 80 ℃ dagi eruvchanlik koeffitsiyenti uning 20 ℃ dagi eruvchanlik koeffitsiyentidan 2 barobar ko’p. Agar shu tuzning 80 ℃ da to’yingan 450 g eritmasi 20℃ ga qadar sovutilganda 75 g tuz cho’kmaga tushishi ma’lum bo’lsa, shu tuzning 20℃ dagi eruvchanlik koeffitsiyentini aniqlang. A) 25 B) 50 C) 30 D) 60 45. Biror tuzning 80 ℃ dagi eruvchanlik koeffitsiyenti uning 20 ℃ dagi eruvchanlik koeffitsiyentidan 1,5 barobar ko’p. Agar shu tuzning 80 ℃ da to’yingan 290 g eritmasi 20℃ ga qadar sovutilganda 30 g tuz cho’kmaga tushishi ma’lum bo’lsa, shu tuzning 80℃ dagi eruvchanlik koeffitsiyentini aniqlang. A) 60 B) 40 C) 30 D) 45 46. Ma’lum haroratdagi MgSO4 to’yingan eritmasining molyal konsentratsiyasi 1,5 mol/kg ga teng bo’lsa, tuzning shu haroratdagi eruvchanlik koeffisiyentini toping. A) 12 B) 18 C) 20 D) 24 47. Ma’lum haroratdagi CuSO4 to’yingan eritmasining molyal konsentratsiyasi 2,5 mol/kg ga teng bo’lsa, tuzning shu haroratdagi eruvchanlik koeffisiyentini toping. A) 32 B) 40 C) 48 D) 24 48. Ma’lum haroratdagi K2SO4 to’yingan eritmasining molyal konsentratsiyasi 5 mol/kg ga teng bo’lsa, tuzning shu haroratdagi eruvchanlik koeffisiyentini toping. A) 8,7 B) 34,8 C) 87 D) 17,4 49. Kalsiy bromidning to’yingan eritmasida brom va kislorod maasalari nisbati 9:10 bo ’lsa, tuzning shu haroratdagi eruvchanlik koeffisiyentini toping. A) 100 B) 50 C) 40 D) 200 50. Kalsiy bromidning to’yingan eritmasida brom va kislorod maasalari nisbati 9:20 bo’lsa, tuzning shu haroratdagi eruvchanlik koeffisiyentini toping. A) 100 B) 50 C) 40 D) 200 51. Ka lsiy bromidning to’yingan eritmasida brom va kislorod maasalari nisbati 9:50 bo’lsa, tuzning shu haroratdagi eruvchanlik koeffisiyentini toping. A) 100 B) 50 C) 40 D) 20 52. 29 g 41,7 % li temir(lll)nitrat eritmasi sovutilganda, 8,08 g kristallogidrat cho'kmaga tushgan, eritmaning massa ulushi 34,7 % ga qadar kamaygan. Shu kristallogidratda bir molekula suvsiz tuzga necha molekula suv to'g'ri keladi? A) 6 B) 7 C) 8 D) 9 53. Kalsiy bromidning 80 g to'yingan eritmasiga 20 g suvsiz tuz solinib,aralashmadagi tuz erib ketgunga qadar qizdirildi va so'ngra boshlang'ich temperaturaga qadar sovutildi. Bunda 41,52 g |
