Mukarram Qodirova Mavzu bayoni

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

__________________________________________________________________________________

• 
  Sana : 19.05.2020
  

Mavzu : Masalalar yechish

O‘qituvchi: Lobar Boboqulova

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

C_nH_2n+1OH → C_nH_2n+ H₂O

14n 18

14n = (8,4*18) / 1,8

14n = 84 n = 6 C₆H₁₂