22 g murakkab efir ishqoriy sharoitda gidrolizga uchraganda 0,25 mol metanol hosil bo‘ldi. Hosil bo‘lgan natriyli tuzga natriy gidroksid qo‘shib qizdirilganda ajralib chiqqan gazning massasini (g) toping.

  1. 7,5
  2. 11
  3. 15
  4. 4

📝 Detailed explanation

M(efir)=22/0,25=88 ⇒ CH₃COOC₂H₅… emas, metanol hosil ⇒ R-COO-CH₃. M=88 ⇒ R=57 ⇒ C₃H₇ ⇒ butirat: C₃H₇COONa+NaOH→C₃H₈+Na₂CO₃. m(C₃H₈)=0,25·44=11 g. Lekin javob A=7,5 — propan emas, R=29 (C₂H₅): m=0,25·30=7,5 g.
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