According to the following thermochemical equation,what mass of HF (in g) must react to produce 345 kJ of energy? Assume excess SiO2. SiO2(s) + 4HF(g) → SiF4(g) + 2H2O(l) DrH° = -184 kJ
A) 42.7 g
B) 37.5 g
C) 150.g
D) 107 g
E) 173 g
Correct Answer:
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