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105,2-100
=5,2
diket
kf= 0,52
i NaCl = 1+(n-1)α
1+(2-1)1
=2
v pelarut =10
Δtb=kf×m×i
5,2=0,52×n×1000÷10×2
5,2=0,52×200×n
5,2÷104=0.05
jd mol garam yang dibuthkn adalah 0,05 mol