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According to the Following Thermochemical Equation,what Mass of HF (In

Question 89

Multiple Choice

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

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