Kimyo talabalikka ilk qadam 1-qism I bob kimyoning asosiy tushunchalari
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| 1.7 nisbiy va absalyut massa
1. Massaning atom birligi (m.a.b.) qiymatini ko‘rsating. A) 2.10-23 B) 1.66.10-24 C) 1 D) E) 12. 2. Mis atomining absolyut massasi necha gramm? A) 3.9.10-23 B) 1.1.10-22 C) 6.4.10-23 D) 2.10-22 E) 3.10-22 3. Simob atomining absolyut massasi necha grammga teng? A) 2.4.10-24 B) 1.2.10-23 C) 1.5.10-22 D) 5.1.10-22 E) 3.3.10-22 4. Temir atomining absolyut massasini (kg) toping. A) 33,73.10-27 B) 56 C) 9,30.10-26 D) 28 E) 92,96.10-23 5. Xlor molekulasining massasini (g) toping. A) 35,5 B) 107,5 C) 5,9.10-23 D) 71 E) 11,8.10-23 6. Bitta kislorod molekulasining massasini (g) hisoblang. A) 5,3.10-23 B) 2,6.10-23 C) 32 D) 6,02.10-23 E) 16 7. Bir dona xrom atomining massasi necha kilogramm bo‘ladi? A) 6,38.10-25 B) 6,83.10-27 C) 8,63.10-26 D) 8,36.10-26 E) 3,68.10-24
A) 2,78.10-21 B) 2,78.10-23 C) 2,96.10-21 D) 4,82.10-23 E) 1,784.10-26
A) 1.9•10-23 B) 53.12•10-26 C) 32 D) 16 E) 5.32•10-26 10. Temir atomining absolyut massasini (kg) toping. A) 33,73.10-27 B) 56 C) 9,30.10-26 D) 28 E) 92,96.10-23 11. 200 ta kislorod atomining massasi necha gramm bo‘ladi? A) 1,66.10-24 B) 6,61.10-22 C) 5,31.10-21 D) 2,65.10-23 E) 26,56.10-24
A) 6 B) 8 C) 10 D) 12 E) 14 13. Bittadan kaliy va temir metallari atomlarining massalarini (g) toping. A) 6.48•1023va 0.93•10-23 B) 6.5•10-24va 9.3•10-24 C) 6.48•10-23va 9.3•10-23 D) 39 va 55.8 E) 3.9•10-23va 5.6•10-23 15. Agar nisbiy atom massa birligi qiymati sifatida uglerod izotopi-12 massasining 1/12 qismini emas, 1 atom uglerod massasi 12 ni qabul qilsak, moddaning bir mol miqdorining massasi o‘zgaradimi? A) o‘zgarmaydi B) 12 marta kattalashadi C) 12 marta kamayadi D) modda tarkibiga kiruvchi elementlar massalariga qarab o‘zgaradi E) elementlar izotoplari massasiga qarab o‘zgaradi 16. «Temirning nisbiy atom massasi 56 gateng» degan jumla sizga nimani anglatadi? A) bitta temir atomining massasi 56 g ga tengligini B) bir mol temir atomlarining massasi 56 g ga tengligini C) bitta temir atomining massasi bitta C atomining massasidan 56 marta katta ekanligini D) bitta temir atomining massasi bitta uglerod atomi massasini 1/12 qismidan 56 marta og‘irligini E) 6.02.1023 ta temir atomlarining massasi 56 g ga tengligini.
A) 2 marta ortadi C) o‘zgarmaydi B) 3 martaortadi D) 4 martaortadi E) 3 marta kamayadi 18. Etalon massa sifatida C12 izotopining 1/12 qismining o`rniga, 3/5 qismi olinadigan bo`lsa, kislorodning nisbiy atom massasi nechaga teng bo`ladi? A)3.33 B)1.19 C)4.25 D)2.22 19. Etalon massa sifatida C12 izotopining 1/12 qismining o`rniga, 3/22 qismi olinadigan bo`lsa, temirning nisbiy atom massasi nechaga teng bo`ladi? A)28 B)34.22 C)37.33 D)42 20. Etalon massa sifatida C12 izotopining 1/12 qismining o`rniga, O16 ning 2/16 qismi olinadigan bo`lsa, yangi etalon massa qiymati nechaga teng bo`ladi? A)1.66 B)3.32 C)2.12 D)1.19 Yüklə 381,58 Kb. Dostları ilə paylaş:
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