Calcium Oxide and Water React in an Exothermic Reaction: CaO(s) $\rarr$

question 106

Multiple Choice

Calcium oxide and water react in an exothermic reaction: CaO(s) + H₂O(l) $\rarr$ Ca(OH) ₂(s) , $\Delta$ H ^$\circ$ _rxn = -64.8 kJ/mol.How much heat would be liberated when 7.15 g CaO(s) is dropped into a beaker containing 152g H₂O

• A) 1.97 * 10^-3 kJ
• B) 8.26 kJ
• C) 508 kJ
• D) 547 kJ
• E) 555 kJ

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