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  3. 1. given the chemical reaction: 3c(graphite) + 4h2

1. Given the chemical reaction: 3C(graphite) + 4H2(g) = C3H8(g) Calculate the ΔHrxn using Hess’s Law and the following...

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Chemistry

1. Given the chemical reaction:

3C(graphite) + 4H2(g) =C3H8(g)

Calculate the ΔHrxn using Hess’s Law and thefollowing information:

C3H8(g) + 5O2(g) =3CO2(g) + 4H2O(l);    ΔH = -2220 kJ/mol

C(graphite) + O2(g) = CO2(g);   ΔH = -393.5 kJ/mol

H2(g) + ½ O2(g)   =H2O(l) ;   ΔH = -285.8 kJ/mol

Answer & Explanation Solved by verified expert
3.7 Ratings (538 Votes)
We have to calculate the delta H of the following reaction 3C graphite 4 H2 g C3H8 g We use given reactions and their delta H to    See Answer
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