UNIVERSAL KIMYO
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Keling!!! Kimyoni birgalikda Γ³rganamizπŸ”₯
Π”Π°Π²Π°ΠΉΡ‚Π΅!!! Π˜Π·ΡƒΡ‡Π°Π΅ΠΌ вмСстС Π₯имиюπŸ”₯
ustoz: Bunyod Raxmanov
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2:1 nitroalkan bilan nitrobenzol qaytarilganda hosil bo’lgan aralashmada vodorod atomlarining umumiy atomlarga nisbati 33:52 nisbatda bo'lsa, nitroalkanni aniqlang?

2CnH2n+3N va C6H7N

4n+13 33
----------- = -----
6n+22 52

n=5 C5H11NH2βœ…

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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N2 va He massa ulushi teng boΚ»lgan aralashmani 42 gradus 83.1 kpa da 12,6 l aralashma massasini toping?

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Hona haroratida 1*10–⁸ M Natriy bromid eritmasini pH qiymatini toping?
βœ…pH=7

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Etil spirti sifat reaksiyasi? β€” ishqor va Lyugol eritmasi (yod, kaliy yodid aralashmasining suvdagi eritmasi)dan foydalaniladi.

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
ustozπŸ‘¨πŸ»β€πŸ« Bunyod Raxmanov
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πŸ”Έdavomi sal keyinroqπŸ™‚
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800g 13.1% li sulfat kislota stexiometrik nisbatda olingan bariy nitrid bilan tasirlashganda, eritmada kislota va tuz massasi teng boΚ»ldi. Hosil boΚ»lgan eritma massasini toping?

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Fisher-Tropsh usuli
nCO+(2n+1)H2da1:x nisbatda reaksiyaga kirishib 3:2:1 nisbatda butan,propan,etan hosil boΚ»ldi.
A)1:x nisbatda olingan CO+ H2 163 g nechcha mol keladi.
B)1:x nisbatda olingan CO+H2 65,2 g aralashmadan necha gram suv chiqadi.

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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πŸ‘1
Berilgan tartib raqamlarni elektron potentsiali ortib borish bo'yicha joylashtiring.
βœ… 12, 3, 4

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FeO va Cu dan iborat aralashma ga kons HNO3 qoΚ»shilganda 11,2 l gaz hosil bΓ²ldi. Chiqqan tuzlar parchalanishdan olingan oksidlar massasi 32 g boΚ»lsa, dastlabki aralashma massasini toping?

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HClga ikkita modda taΚΌsir ettirildi. Ikkovida ham gaz chiqdi. Bittasi rangli bittasi rangsiz boΚ»lsa qoΚ»shilgan moddalarni aniqlang?
βœ… KMnO4 va Fe
yoki
βœ…MnO2 va K2S

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CH3CHCHCCH dagi sigma va pi bogΚ»lar sonini va C atomlarining gibridlanishi aniqlang?
βœ…10ta sigma, 3ta pi, 4ta sp3, 6ta sp2, 4ta sp

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Ag+ Mg2+ Ca2+ bor shu aralashmaga qaysi modda qo'shsa, faqat Ag+ qoladi?
A)NaFβœ…
B)Na2CO3
C)K2SO4
D)fosfatli tuz

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Benzolga 200 gr 37,2 % li nitrat kislotaning sulfat kislotali eritmasidan qoΚ»shilganda, eritmada nitrat kislota va nitrobenzollarning massa ulushi teng boΚ»lsa, olingan nitrobenzoldan qancha massali anilin olish mumkin?

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Atomlar soni teng boΚ»lgan dixloretanga va dixlormetan aralashmasining 47 gr massaiga suv qoΚ»shil gidrolizlanganda oksobirikmalar hosil boΚ»sa,bu oksobirikmalar kumush oksidining ammiakdagi eritmasi bilan taΚΌsirlashganda qancha mol metall hosil boΚ»ladi?

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Asetilen bn X gaz aralashmasida X ni massa ulushi 48%, mol ulushi esa 60% bΓ²lsa, X gazni toping?

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Alyuminiy fosfit jami bog'larni soni toping?

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Birlamchi aminlar guruhi formulasi keltririlgan qatorni toping?
βœ…CnH2n+1NH2
yoki
βœ…CnH2n+3N

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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Metan yonishida reaksiya tezligi 5mol/lβ€’min. Sistema bosimi 2 marta oshirildi reaksiya tezligi qanday boΚ»ladi?
CH4+2O2=>...
βœ…5Γ—2Β³=40

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Rubin va Sapfir tarkibiga kiruvchi qattiq modda NaOH va HCl bilan oson reaksiyaga kirishadi. Bu qaysi modda?
βœ…Al2O3

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Boksit tarkibida qanday oksid uchraydi?
βœ…Al2O3

Al2O3β€’nH2O – boksit
Al2O3 – korund (glinozem)

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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