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Shweta Jain
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Posted 4 year ago
Shweta Jain 
How do you calculate equivalent mass from valency?
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Seema Kumari
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Posted 4 year ago Seema Kumari

To calculate the equivalent mass of a base, simply divide the molar mass of the base by the number of hydroxyl groups. Take, for example, calcium hydroxide Ca(OH)₂. A few simple calculations yield an equivalent of 37g/mol. To find the equivalent of an acid, divide the acid's molar mass by the number of protons.