March 2019 1 181 Report
Mohon bantu jawab ya
1. sebanyak 1 liteer gas X² massanya 1,7 gram jika diukur pada suhu 0°C dan tekanan 1 atm. hitunglah massa atom relatif X!
2. 9,03x10²³ molekul gas massanya 5,7 gram. jika bilngan avogadro = 6,02x10²³, hitung Ar unsur X !

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