MintH4itanii MintH4itanii

19-03-2024
Chemistry

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quelle est la masse molaire moléculaire de la caféine de formule C8 H10 O2 N4 ?

une tasse de café contient 100mg de caféine, une tasse de thé 60mg et une tasse de cacao 12mg. en déduire la quantité de caféine présente dans chacune de ces tasses

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