laboratoriya kitobi 8 sinf 111

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toshkent viloyat angren shahar ______umumiy o`rta ta`lim maktabi 8 “ ” sinf o`quvchisi ___________________________ning kimyo fanidan laboratoriya ishi daftari fan o`qituvchisi : sana :_________________ 1.laboratoriya ishi rux gidroksidning olinishi, unga kislota va ishqor eritmalarining ta’sir [image: imti_000125] 1. probirkaga 5% li o‘yuvchi natriy eritmasidan 1-2 ml quying. 2. eritma ustiga rux xlorid tuzi eritmasidan mo‘l miqdorda soling. 3. hosil bo‘lgan cho‘kmani ikkita probirkaga bo‘lib oling. 4. probirkalarning biriga xlorid kislota, ikkinchisiga o‘yuvchi natriy eritmasidan quying. probirkalarni chayqating. _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ sana:____________________________ 2. laboratoriya ishi mavzi: turli kimyoviy bog‘lanishli moddalarning (kaliy xlorid, ol

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tingugurt, yod) kristallari namunalarini tayyorlash 1. kaliy xlorid qanday kimyoviy bog‘lanis[image: imti_000442]hli modda? ion bog‘lanishli moddalarga misollar keltiring. 2. kaliy va xlor ionlarining koordinatsion soni oltiga tengligini va qarama-qarshi ionlar bir-biri bilan birika olishini bilgan holda kaliy xlorid kristallarini shar sterjenli modelini tayyorlang. rasmini daftaringizga chizib oling. qizil sharcha - kaliy ionlari: sariq sharcha - xlor ionlari. [image: imti_000443]3. kristall oltingugurtda 8 ta oltingugurt atomi bir-biri bilan doira yoki kreslo shaklida birikishini bilgan holda shar sterjenli modelini tayyorlang. rasmini daftaringizga chizib oling. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ sana: _________________________ 3. laboratoriya ishi. mavzu: xlorid kislota, galogenidlar va yod uchun sifat reaksiyalari 1. quyidagi jadvalni daftaringizga ko‘chirib oling. reagent hcl nacl nabr naj agno3 eritmasi 1 2 3 4 [image: imti_000213]2. to‘rtta probirka oling. ularning birinchisiga hcl, ikkinchisiga nacl, uchinchisiga nabr va to‘rtinchisiga naj tuzlarining eritmalaridan 1—2 ml dan quying. 3. eritmalar quyilgan probirkalarga navbatma-navbat agno3 er

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itmasidan 0,5 ml (3—4 tomchidan) quying. 4. sodir bo‘lgan o‘zgarishlarni kuzating. reaksiya tenglamalarini yozing. natijalarni jadvalga yozing. 5. probirkaga kraxmal kleysteridan 3—4 tomchi quying. uning ustiga yodning spirtdagi eritmasidan 1 tomchi tomizing. sodir bo‘lgan o‘zgarishni kuzating. 6. kartoshka va non bo‘laklariga yodning spirtdagi eritmasidan 1—2 tomchi tomizing. sodir bo‘lgan o‘zgarishlarni kuzating. kuzatish natijalariga asoslanib o‘z fikringizni bildiring. _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ sana :_________________ 4. laboratoriya ishi. mavzu: tuproq eritmasi tarkibida xloridlarning borligini aniqlash 1. maktab tajriba maydonidan olingan tuproq namunasini suvga solib, yaxshilab aralashtiring. hosil bo‘lgan loyqa "eritmani" filtrlang. 2. filtrdan o‘tgan eritmada xlor io

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ni borligini tekshiring. _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ sana :_________________ 5. laboratoriya ishi. mavzu: galogenlarning birikmalari eritmalaridan bir-birini siqib chiqarishi 1. quyidagi jadvalni daftaringizga ko‘chirib oling. nacl nabr naj cl2 br2 j2 2. ikkita probirkaning biriga natriy bromid, ikkinchisiga natriy yodid eritmasidan 3—4 ml dan quying. 3. probirkalardagi eritmalarga xlorli suvdan 1—2 ml dan quying. sodir bo‘lgan o‘zgarishlarni kuzating va reaksiya

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tenglamalarini yozing. 4. probirkaga natriy yodid eritmasidan 3—4 ml quying, uning ustiga bromli suvdan 1-2ml quying. sodir bo‘lgan o‘zgarishlarni kuzating, reaksiya tenglamalarini yozing. 5. ikkita probirkaga 3-4 ml dan osh tuzi eritmasidan quying. probirkalarning biriga bromli suvdan 1—2 ml, ikkinchisiga yodning spirtdagi eritmasidan 1—2 ml quying. o‘zgarish sodir bo‘ldimi? nima uchun? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ sana :_________________ 6. laboratoriya ishi. mavzu: galogenlarning suvda va organik erituvchilarda erishi 1. probirkaga yod kristallaridan 3—4 bo‘lak solib, ustiga 1—2 ml suv quyib aralashtiring. yodning suvda erishini kuzating. so‘ngra yodning suvli eritmasiga 1—2 ml benzol quying. probirkani chayqating. tindiring. sodir bo‘lgan o‘zgarishlarni kuzating. probirkada hosil bo‘lgan ikkita qatlam: suvli va benzol qatlamining rangiga e’tibo

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О "laboratoriya kitobi 8 sinf 111"

toshkent viloyat angren shahar ______umumiy o`rta ta`lim maktabi 8 “ ” sinf o`quvchisi ___________________________ning kimyo fanidan laboratoriya ishi daftari fan o`qituvchisi : sana :_________________ 1.laboratoriya ishi rux gidroksidning olinishi, unga kislota va ishqor eritmalarining ta’sir [image: imti_000125] 1. probirkaga 5% li o‘yuvchi natriy eritmasidan 1-2 ml quying. 2. eritma ustiga rux xlorid tuzi eritmasidan mo‘l miqdorda soling. 3. hosil bo‘lgan cho‘kmani ikkita probirkaga bo‘lib oling. 4. probirkalarning biriga xlorid kislota, ikkinchisiga o‘yuvchi natriy eritmasidan quying. probirkalarni chayqating. __________________________________________________________________________________________________________________________________________________________________________________...

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