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How calculate equivalent weight?

Updated: 8/10/2023
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11y ago

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To calculate the equivalent weight of a compound, simply add up the sum of equivalent weight of the ions. For example, Sodium chloride's equivalent weight can be express as 23/1 +35.5/1=58.5. It's unnecessary to multiple the numbers of ions. For instance, Al2O3 is express as 27/3 +16/2=17. For clusters (multiatom particle), divide the molecular mass by the charge. SO4- is expressed as 96/2.

More example: CaCO3 40/2+60/2=50

MgSO4 24/2+96/2=60

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9y ago
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13y ago

Equivalent weight is the molecular weight/functionality. Sulfuric acid is 98 molecular weight with two protons, so its equivalent weight is 49.

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11y ago

molecular weight divide by valency

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