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mol glukosa = massa/Mr = 36/180 = 0,2
mol air = 64/18 = 32/9
fraksi mol pelarut air Xp = mol air / [mol air + mol glukosa]
Xp = [32/9] / [(32/9) + 0,2]
Xp = 32/ [32 + 1,8] = 160/169
tekanan uap jenuh pelarut p₀ = 20 mmHg
tekanan uap jenuh larutan p = p₀ . Xp
p = (20)(160/169)
jadi tekanan uap jenuh larutan glukosa tersebut adalah 18,93 mmHg
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