According to the following balanced reaction, how many moles of CaO are required to exactly react with 3.22 moles of H20?
CaO(s) + H2O(l) → Ca(OH)2(s)
The balanced reaction shows that 1 mole of CaO reacts with 1 mole of H2O to produce 1 mole of Ca(OH)2.
Therefore, to react with 3.22 moles of H2O, you would need 3.22 moles of CaO.