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Saynazarov Mirzohidjon Mavzu bayoni
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| bet | 10/12 | | Sana | 28.05.2024 | | Hajmi | 285,94 Kb. | | #255821 |
Bog'liq kimyo10 tezis 22.05Javob: 80%
Masala: 200g 40% li natriy ishorining eritmasini neytrallash uchun qanday massadagi (g) sirka kislotasi kerak bo’ladi?
80g xg
NaOH + CH3COOH → CH3COONa + H2O
m = 200g mNaOH = (200 * 40) / 100 = 80g
C% = 40% 80g — xg
m = ? 40g/mol — 60g/mol x = (80 * 60) / 40 = 120g
Javob:_120g___Masala'>Javob: 120g
Masala: 40% natriy ishqorining 200 gramm eritmasi metilatsetat bilan ta’sirlahuvidan necha gramm spirt hoil bo’ladi?
80g
CH3COOCH3 + NaOH → CH3COONa + CH3OH
m = 200g mNaOH = (200 * 40) / 100 = 80g
C% = 40% 80g — xg
m = ? 40g/mol — 32g/mol x = (80 * 32) / 40 = 64g
Javob: 64g
Mustaqil bajarish uchun topshiriq
Masala: 28% kaliy ishqorining 400g eritmasi propilatsetat bilan ta’sirlashuvidan necha gramm spirt hosil bo’ladi?
Uyga vazifa: Ekranda berilgan 4-masalani yechish
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Mavzu : Organik chiqindilar va ularni qayta ishlash sanoatlari
O‘qituvchi: Saynazarov Mirzohidjon
Mavzu bayoni:
Masala: Natriy atsetat yetarli miqdordagi NaOH bilan ta’sirlashganda 11,2 litr (n.sh) gaz ajralgan bo’lsa, sarflangan tuz massasini toping.
xg 11,2 l
CH3COONa + NaOH → Na2CO3 + CH4↑
82g/mol 22,4l/mol
xg —— 11,2 l
82g/mol —— 22,4 l/mol x = 41 g
Javob: 41g
Masala: Noma’lum spirtning degidratlanishidan 8,4 g alken va 1,8g suv hosil bo’lgan bo’lsa, alkenning formulaini aniqlang.
8,4g 1,8g
CnH2n+1OH → CnH2n+ H2O
14n 18
14n = (8,4*18) / 1,8
14n = 84 n = 6 C6H12
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