Biror tuzning 80В°C dagi eruvchanlik koeffitsiyenti uning 20В°C dagi eru

88. (v20/21-122-24) Biror tuzning 80В°C dagi eruvchanlik koeffitsiyenti uning 20В°C dagi eruvchanlik koeffitsiyentidan 2,5 barobar kop. Agar shu tuzning 80В°C dagi toyingan 300 g eritmasi 20В°C ga qadar sovutilganda 60 g tuz chokmaga tushishi malum bolsa, shu tuzning 80В°C dagi eruvchanlik koeffitsiyentini aniqlang. A)50 B)20 C)30 D)75