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H2O = 99,255
M=0,745/74,5 x 1000/99,255 = 0,1 M
T= 27 +273 = 300 K
R =0,082
a=86 % = 0.86
i = 1 + (n-1)a=1 + (2-1) 0,86=1,86
tknan osmotik = MRT.i = 0,1 x 0,082 x 300 x 1,86 =4,5756 atm =4,58 atm