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

Multiple Choice

Calcium oxide and water react in an exothermic reaction: CaO(s) + H₂O(l) $\rarr$ Ca(OH) ₂(s) , $\Delta$ H°_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