2. Use Hess’s Law to determine the enthalpy of the reaction below. 2F2(g) + 2H2O(l) → 4HF(aq) + O2(g) DH˚= ? H2(g) + F2(...

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Question

2. Use Hess’s Law to determine the enthalpy of the reaction below.

2F2(g) + 2H2O(l) → 4HF(aq) + O2(g) DH˚= ?

H2(g) + F2(g) → 2HF(aq) DH˚ = -546.6 kJ

2H2 (g) + O2(g) → 2H2O(l) DH˚ = -571.6 kJ

a. 42 kJ

b. -1120 kJ

c. -251 kJ

d. -521 kJ

e. -1690 kJ

science chemistry

Answer 1

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Answer #1

tha eacth FOr RHO 2) Z FR (9) 4HF (99) AHo-P + F () 2HF (a9) AH=546.5 KT Mutitolying eqh- 1 F) 4H3= O93. K - + 03(8) RH2 C) 4

Answer 2

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