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प्रश्न
Define equivalent mass.
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उत्तर
Gram equivalent mass of an element, compound or ion is the mass that combines or displaces 1.008 g hydrogen or 8 g oxygen or 35.5 g chlorine. The equivalent mass has no unit but the gram equivalent mass has the unit g eq-1.
Gram equivalent mass = `("Molar mass" ("gmol"^(−1)))/("Equivalence factor" ("eqmol"^(-1)))`
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