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ZnO,Na(2)O एवं K(2)CO(3) के सूत्र इकाई द...

`ZnO,Na_(2)O` एवं `K_(2)CO_(3)` के सूत्र इकाई द्रव्यमानों का परिकलन कीजिए।
`Zn=65u,Na=23u,K=39u,C=12u,O=16u`

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