According to the Following Reaction, How Much Energy Is Evolved

question 11

Multiple Choice

According to the following reaction, how much energy is evolved during the reaction of 32.5 g B₂H₆ and 72.5 g Cl₂? The molar mass of B₂H₆ is 27.67 g mol^-1. B₂H₆(g) + 6Cl₂(g) → 2BCl₃(g) + 6HCl(g) Δ_rH° = -1396 kJ

• A)1640 kJ
• B)238 kJ
• C)1430 kJ
• D)3070 kJ
• E)429 kJ

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