diketahui NaCl sebanyak 78,6 gram H2O sebanyak 1 kilo KF air = 1,86 derajat Celcius per meter mr nacl 58.5 Dit delta f

Dik : mNacl= 78,6 gr
i= 1 + (n-1) alfa
i = 1 + (2-1) 1= 2
mH2O= 1 kg = 1000 gr
Kf = 1,86
mr Nacl = 58,5
Dit: delta tf?
Peny:
n= m/mr= 78,6/58,5 = 1,343
Molalitas= n/p.100
= 1,343/1000.1000
= 1,343
Delta tf= m.kf.i
=1,343.1,86.2
=4,995