hitungan lah Mr CaBr= 40 dan Br=80

Mr CaBr2 = Ar Ca + (2 × Ar Br)
Mr CaBr2 = 40 + (2×80)
Mr CaBr2 = 40 + 160
Mr CaBr2 = 200

Mapel: Kimia
Kelas: X
Materi: Stoikiometri
Kata Kunci: Atom Relatif dan Molekul Relatif

jawab

Ar Ca = 40
Ar Br = 80

CaBr2
Mr → Ar Ca + 2× Ar Br
Mr→ 40+(2×80)
Mr → 40+160
Mr = 200g/mol