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= 2 Mr AL + 3 Mr S + 12 Mr O
= 2 (27) + 3 (32) + 12 (16)
= 54 + 96 + 182
= 332
b. CH3COOH
= 2 Mr C + 4 Mr H + 2 Mr O
= 2 (12) + 4 (1) + 2 (16)
= 24 + 4 + 32
= 60
apabila ada salah hitung mohon maaf
= 2 Ar Al + 3 Ar S + 12 Ar O
= 2.27 + 3.32 + 12.16
= 54 + 96 + 192
= 342
b. Mr CH₃COOH
= 2 Ar C + 4 Ar H + 2 Ar O
= 2.12 + 4.1 + 2.16
= 24 + 4 + 32
= 60