🤓 Based on our data, we think this question is relevant for Professor Nievaldo's class at Santa Barbara City College.

Calculate the moles of CaO reacted and use the balanced equation to find the mass of H_{2}O reacted. Subtract this mass of water initially to find the excess water

Since all the necessary *molar masses* are already provided, construct a dimensional analysis to find the mass of H_{2}O reacted

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide:

CaO(s) + H_{2}O(l) → Ca(OH)_{2}(s)

A 5.00-g sample of CaO (molar mass = 56.077 g/mol) is reacted with 4.83 g of H_{2}O (molar mass = 18.02 g/mol). How many grams of water (the reactant in excess) remain after the reaction is complete?

A) 0.179

B) 0.00991

C) 0.00

D) 3.22

E) 1.04