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Given that CaO(s) + H2O(l) →Ca(OH)2(s), ΔH°rxn = –64.8 kJ/mol, how many grams of CaO must react in order to liberate 525 kJ of heat?

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Given that CaO(s) + H2O(l) →Ca(OH)2(s), ΔH°rxn = –64.8 kJ/mol, how many grams of CaO must react in order to liberate 525 kJ of heat? 

(A) 6.92 g 

(B) 56.1 g 

(C) 455 g 

(D) 606 g 

(E) 3.40 x 104 g

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1 Answer

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by (64.8k points)

The Correct option is (C) 455 g

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