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Mass of Ca(OH)2= 46.916 g
Given
Reaction
CaO + H2O - Ca(OH)2
Required
mass of Ca(OH)2
Solution
Mol of CaO :
= mass : MW
= 35.5 g : 56 g/mol
= 0.634
From the equation , mol ratio CaO : Ca(OH)2 = 1 : 1, so mol Ca(OH)2 = 0.634
Mass Ca(OH)2 :
= mol x MW
= 0.634 x 74
= 46.916 g