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M₁ = 0,2 M V2 = 12 ml n₂ = 3
V₁ = 20 ml massa/volum = 10,8 g/L
M₁V₁ = M₂V₂
0,2 . 20 = 3 . M₂ . 12
4 = 36 M₂
M₂ = 1/9
M = n / V n = massa/Mr
1/9= massa / Mr.V
1/9= 10,8 / Mr massa / V = 10,8
Mr = 97,2
jadikan jawaban terbaik ya..