Question

2H2O2 → 2H2O+O2+196.6 kj.

Hydrogen peroxide decomposes according to the reaction above. How much heat is released during the reaction when 5.0 moles of H2O2 decompose?

Answer 1

Answer: 491.5

Step-by-step explanation:

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Answer 2

2mol of Hydrogen peroxide releases 196.6KJ heat

1mol releases

• 196.6/2
• 98.3

5mol releases

• 5(98.3)
• 491.5KJ