# Análisis 5: Cafeína, fórmula empírica y molecular

{% hint style="info" %}
La cafeína posee la siguiente composición en base másica: 49.47% C, 5.20% H2, 28.85 % N2 y 16.48% O2. Determinar:

a)    Fórmula empírica

b)   Formula química normalizada

c)    La formula química si el peso molecular es 194.22 kg/kmol

d)   Determinar el poder calorífico empleando la ecuación de Boile

e)    Entalpía de formación
{% endhint %}

<figure><img src="/files/TbUqofHbWaW5rFEKxN4b" alt=""><figcaption></figcaption></figure>


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