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Using bond energy data, calculate heat o...

Using bond energy data, calculate heat of formation of isoprene.
` 5 C(s) + 4 H_(2) (g) to H_(2) C = C underset(CH_(3))underset(|)(-) C = underset(H)underset(|)(C) H_(2) (g)`
Given , C - H = 98.8 k cal , H - H = 104 kcal , C - C = 83 k cal , C = C = 147 K cal & ` C (s) to C (g) = 171` k cal .

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`+20.6` k cal
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Calculate heat of formation of isoprene using bond energy data. 5C(s) + 4H_(2)(g) rarr H_(2)C = underset(CH_3)(|)(C ) - HC =CH_(2) Given C - H = 98.8 kcal H - H = 104 kcal C – C= 83 kcal C = C = 147 kcal and C(s) rarr C(g) = 171 kcal

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