30 talik javobli

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$kimyo 1.quyidagi jadvaldan foydalanib, y ni toping. modda to’liq dissotsilanishidan hosil bo’lgan ionlarning soni (mol) kation anion y x 3x a) (nh4)3po4 b) fe2(so4)3 c) al(no3)3 d) na2co3 2. nh4clo4(q) → n2(g) + cl2(g) + o2(g) + h2o(s) ushbu jarayonda hosil bo‘lgan gazlar aralashmasining o‘rtacha molyar massasini (g/mol) aniqlang. a) 163/4 b) 131/3 c) 235/8 d) 203/7 3. quyidagi garfikda x gazning bosimi va hajmi o‘rtasi-dagi bog‘liqlik ifodalangan. ushbu grafik bo‘yicha 2 g gaz bo‘lsa, x gazning molyar massasini (g/mol) hisoblang (t = 273ºc). [image: c:\users\user\appdata\local\temp\ksohtml14460\wps1.jpg] a) 4 b) 16 c) 32 d) 64 4. quyidagi jadval ma’lumotlari asosida x gazni aniqlang. gaz gazlar aralashmasi m (g/mol) co2 co2 + x 20 a) ne b) ch4 c) o2 d) co 5. molyal konsentratsiyasi 6,25 mol∙kg-1 bo‘lgan natriy gidroksid eritmasining foiz konsentratsiyasini hisoblang. a) 10% b) 20% c) 30% d) 40% 6. quyida berilganlardan nechtasining empirik va brutto formulalari bir xil? …$

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biy atom massasi nimaga teng bo‘ladi? a) 400 b) 40 c) 80 d) 4 14. quydagi jadvaldan foydalanib x ni qiymatini aniqlang. modda formulasi kislorodning valentligi a elementning valentligi axoy b 2b a) 1 b) 2 c) 3 d) 4 15. agar nisbiy atom massa birligi sifatida 12c absolyut massasining 1/12 qismi o‘rniga qanday qismi olinsa, kislorodning nisbiy atom massasi 12 birlikka kamayadi? a) 1/4 b) 1/3 c) 1/8 d) 1/21 16. quyidagi jadval ma’lumotlari asosida noma’lum x moddani aniqlang. modda m (g) n (mol) x 128a 4a a) ch4 b) o2 c) so2 d) co2 17. quyidagi jadval ma’lumotlari asosida noma’lum x elementni aniqlang. element p+ soni n0 soni p+ + n0 + e- x a a+14 155 a) cd b) ag c) sn d) te 18. quyidagi jadval ma’lumotlari eritmada erigan moddani aniqlang. [bookmark: _goback]eritma massasi (g) konsentratsiya (%) erigan modda miqdori (mol) 608 50 2 a) cuso4 …

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$aoh + h2 massa na massa naoh reaksiya unumi hosil bo’lgan gaz hajmi x gr x+3.4 100% ? a) 2.24 b) 3.36 c) 4.48 d)5.6 26. na+h2o à naoh + h2 massa na massa naoh reaksiya unumi hosil bo’lgan gaz hajmi x gr x+6.8 100% ? a)2.24 b) 4.48 c)16.8 d) 17.92 27. quydagi jadvalga ko‘ra “n” ni qiymatini aniqlang. ion protonlar soni elektronlar soni [image: c:\users\user\appdata\local\temp\ksohtml14460\wps4.jpg] a+1 [image: c:\users\user\appdata\local\temp\ksohtml14460\wps5.jpg] [image: c:\users\user\appdata\local\temp\ksohtml14460\wps6.jpg] a a) -4 -4 b)-6 -6 c)-2 -2 d) +4 28. quydagi grafigka asoslanib a moddani aniqlang. [image: c:\users\user\appdata\local\temp\ksohtml14460\wps13.jpg] a) o2 b) sih4 c) no d) co 29. cxh2x[image: c:\users\user\appdata\local\temp\ksohtml14460\wps14.png][image: c:\users\user\appdata\local\temp\ksohtml14460\wps15.jpg]cxh2x-2 + h2 quyidagi degidrogenlanish jarayoni uchun 16,8 g cxh2x maxsulot olingan. ma’lum vaqtdan so’ng muvozanat qaror topdi. bu sistema uchun kc qiymatini aniqlang. (reaksiya 2 litrli idishda olib borilgan) [image: c:\users\user\appdata\local\temp\ksohtml14460\wps16.png] a) 0,9 b) 0,8 c) 0,225 d) 0,45 30. ushbu rasmda qaysi molekula tasvirlangan. [image: c:\users\user\appdata\local\temp\ksohtml14460\wps17.png] …$

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kimyo 1.quyidagi jadvaldan foydalanib, y ni toping. modda to’liq dissotsilanishidan hosil bo’lgan ionlarning soni (mol) kation anion y x 3x a) (nh4)3po4 b) fe2(so4)3 c) al(no3)3 d) na2co3 2. nh4clo4(q) → n2(g) + cl2(g) + o2(g) + h2o(s) ushbu jarayonda hosil bo‘lgan gazlar aralashmasining o‘rtacha molyar massasini (g/mol) aniqlang. a) 163/4 b) 131/3 c) 235/8 d) 203/7 3. quyidagi garfikda x gazning bosimi va hajmi o‘rtasi-dagi bog‘liqlik ifodalangan. ushbu grafik bo‘yicha 2 g gaz bo‘lsa, x gazning molyar massasini (g/mol) hisoblang (t = 273ºc). [image: c:\users\user\appdata\local\temp\ksohtml14460\wps1.jpg] a) 4 b) 16 c) 32 d) 64 4. quyidagi jadval ma’lumotlari asosida x gazni aniqlang. gaz gazlar aralashmasi m (g/mol) co2 co2 + x 20 a) ne b) ch4 c) o2 d) co …

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