Question

calcular la masa molecular del dioxido de carbono y cafeina

Answer 1

CO2

C: 1 X 12 g = 12 g/mol
O :2 x 16 g = 32 g/mol
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   Mm Co2 = 44 g/mol

cafeina:  C8H10N4O2

C: 8 x 12 g = 96 g/mol
H: 10 x 1 g = 10 g/mol
N:  4 x 14 g = 56 g/mol
O: 2 x 16 g = 32 g/mol
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         Mm =  194 g/mol