Kimia Sekolah Menengah Pertama Jawablah pertanyaan berikut dengan tepat.1. Jumlah atom logam perak Ag adalah [tex]1,505[/tex] × [tex]10^{23}[/tex]. Tentukan massa logam perak tersebut ( Ar Ag = 108 )2. 1 gelas air H[tex]_{2}[/tex]O bervolume 200 mL. Tentukan jumlah molekul air dalam gelas tersebut ( L air = 1 g/mL)3. Suatu gas XO[tex]_{2}[/tex] dengan jumlah molekul 3,612 × [tex]10^{22}[/tex] memiliki massa 3,84 gr. Tentukan massa atom relatif (Ar) unsur X (Ar O = 16).Tolong dijawab secepatnya ya! :) dakotawelchulv – February 21, 2023
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