Question

Determina la fórmula molecular de un compuesto cuya fórmula mínima ch2 y su masa molar 84g mol !

Answer 1

1. Fórmula empírica (FE) = CH2

2.Calcular Mm de la FE

C: 1 x 12 = 12 g/mol

H: 2 x 1 = 2 = 2 g/mol

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Mm = 14 g/mol

3. Calcular n = Mm compuesto / Mm FE

n = 84 g/mol / 14 g/mol

n = 6

4. FÓRMULA MOLECULAR:

(CH2)6 = C6H12