Calculate the mass of 2 gram equivalent of K2CO3( At. wt. K=39,C=12,O=16)
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answer is 138.
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Detailed Solution
g. mol. wt. of K2CO3 =2×39+1×12+3×16=138gK2CO3⇌2K++CO32−∴ Total + ive charge on K+ions =2∴ One g. equivalent of K2CO3 = g.mol.wt.of K2CO3 Total +vecharge on K+ions =1382g⋅=69g. 2 gm eq of K2CO3=2×69g.=138g.