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1.78L of chlorine gas at STP is prepared...

1.78L of chlorine gas at STP is prepared by using 40% HCl by weight according to the following reaction-`MnO_(2)+4HCl to MnCl_(2)+2H_(2)O+Cl_(2)`. Find the volume of hydrochloric acid and mass of `MnO_(2)` requried to produce this amount of chlorine gas. [specific gravity of the HCl solution=1.12]

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