0.7g of zinc dust containing zn and zno when dissolved in h2so4 evolved 2.24 ml of h2 at ntp calculate the %age of zinc in the Zn dust
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0.7g of zinc dust containineg zn and zno when dissolved in h2so4 evolved 2.24 ml of h2 at ntp calculate the %age of zinc in the Zn dust
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