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Nazorat ishi o’tkazilgan sana _________________

Mavzu: Foiz va molyar konsentratsiya o‘rtasidagi bog‘lanish Foiz va normal konsentratsiya o‘rtasidagi bog‘lanish Reaksiya tezligi

Nazorat shakli:yozma ish.
I-variant.
1. 20% li NaOH eritmasining (p=l,2 g/ml) molyar kontsentratsiyasi qanchaga teng bo’ladi?
2. . 0,65 l 2,5 M li eritma tayyorlash uchun necha mol sulfat kislota kerakligini toping.
3. 30 % li (ρ =1,2g/ml) Al(NO3)3 eritmasining normal konsentratsiyasini aniqlang.
4. .A + B → C reaksiyada A moddaning konsentratsiyasi
0,6 mol/l dan 0,2 mol/l gachakamaygan va reaksiya
2,5 min davom etgan bo‘lsa, uning o‘rtacha tezligini (mol/l・s) toping.
Kompetentlikni aniqlash uchun materiallar:
5.250ml 2M li sirka kislota eritmasini tayyorlashimiz uchun necha gr sirka kislota kerak bo’ladi?
II-variant
1. 1,5 mol KOH 316 ml suvda eritlidi hosil bo’lgan eritmadagi (p=1,22 gr/ml) KOH eritmasining molyar konsentratsiyasini hisoblang.
2. Hajmi 3 litr bo`lgan idishda 5,5 mol modda 30 sekund o`tgandan so`ng 2,5 molgacha kamaysa, reaksiya tezligi (mol/l∙sekund) qanchaga teng bo`ladi.
3. 14 % li (ρ =1,2g/ml) KOH eritmasining normal konsentratsiyasini
aniqlang.
4. 3N li (ρ =1,25 g/ml) NaOH eritmasining foiz konsentratsiyasini aniqlang.
Kompetentlikni aniqlash uchun materiallar:
5. 150ml 2M li nitrat kislota eritmasini tayyorlasimiz uchun necha gr nitrat kislota kerak bo’ladi?

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7- Nazorat ishi