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Using Hess's Law and the provided reactions, calculate the heat of formation of propane (C3H8).

Chemistry

ScanSolve AI Answer

To determine the heat of formation of propane (C3H8\text{C}_3\text{H}_8), we will use Hess's Law. The target equation is:
3C(s)+4H2(g)⟶C3H8(g)3\text{C(s)} + 4\text{H}_2\text{(g)} \longrightarrow \text{C}_3\text{H}_8\text{(g)}

We are given the following reactions and their enthalpy changes:

  1. C(s)+O2(g)⟶CO2(g)\text{C(s)} + \text{O}_2\text{(g)} \longrightarrow \text{CO}_2\text{(g)}; ΔH1=−393 kJ/mol\Delta H_1 = -393 \text{ kJ/mol}
  2. $\text{H}_2\text{(
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