A) 21
23. (04-1-484) Kaliy nitratning 40В°C dagi eruvchanlik koeffitsiyenti 61 ga teng bolsa, uning 500 g toyingan eritmasini buglanish natijasida olingan tuzning qattiq qizdirilishi natijasida hosil bolgan qattiq qoldiqning massasini toping.
A) 21 B) 22,4 C)31
D) 189,4
E) 159,4