tolong bantu jawab dong:)

3. Penurunan tekanan uap berbanding lurus dgn fraksi mol terlarut (delta P= P° x Xterlarut)

4. P=P° x Xpelarut
Xpelarut= mol pelarut/mol pelarut+mol terlarut
=27/18 / 27/18 + 31/62 = 3/4
P= P° x X pelarut
= 30 x 3/4
= 90/4 = 22,5 mmHg.