Using the following thermochemical equation,determine the amount of heat produced from the combustion of 24.3 g benzene (C₆H₆).The molar mass of benzene is 78.11 g/mole. 2 C₆H₆(l)+ 15 O₂(g)→ 12 CO₂(g)+ 6 H₂O(g)ΔH°_rxn= -6278 kJ

Question

Quizplus · Accepted Answer

The combustion of 2 moles of benzene releases 6278 kJ. First, calculate the moles of benzene in 24.3 g: 24.3 g / 78.11 g/mol = 0.311 moles. Since 2 moles release 6278 kJ, 0.311 moles will release (0.311/2) * 6278 kJ = 977 kJ.

Using the Following Thermochemical Equation,determine the Amount of Heat Produced