Bonjour . calculer la masse molaire de la paraffine. svp
on assimile la paraffine à un Alcane de formule brute C25 H52
on assimile la paraffine à un Alcane de formule brute C25 H52
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Bonsoir,C₂₅H₅₂ = 25 x M(C) + 52 x M(H)
= 25 x 12,0 + 52 x 1,0
= 300 + 52
= 352 g/mol