October 2018 1 33 Report
Sebanyak 60 gram urea (Mr=60) dilarutkan dalam 72 gram air (Mr=18). jika tekanan uap pelarut murni pada suatu 20°C adalah 22,5 mmHg, maka tekanan uap larutan pada suhu tersebut adalah....

bantu yah besok d kumpul nih
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