calculate the gram equivalent mass of calcium hydroxide
Answers
Answer:
The equivalent weight of calcium hydroxide is 1/2 he mass of a mol of calcium hydroxide. 1 mol Ca(OH)2 = 74 grams Ca(OH)2 ; 1 equivalent Ca(OH)2 = 37 grams Ca(OH)2.
Answer:
The gram equivalent mass of calcium hydroxide is 37g.
Explanation:
The molecular formula of calcium hydroxide is Ca(OH)₂.
The atomic weights of calcium, oxygen, and hydrogen are 40u, 16u, and 1u.
Therefore, the molecular mass of Ca(OH)₂ is 40+(16+1)×2 = 40+34 = 74u.
The equivalent mass is given as the ratio of molecular mass to the number of replaceable hydroxyl groups.
Equivalent mass = Molecular mass / Number of replaceable hydroxyl group
Equivalent mass = 74/2 since there are two -OH groups in calcium hydroxide.
Equivalent mass = 37g.
Therefore, the gram equivalent ass of calcium hydroxide is 37g.
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