Welcome to ChemZipper !!!: Brass is an alloy of Cu-Zn. A sample of brass weighing 6.0 g, when treated with excess of dil. H2SO4 gives 328 mL of dry H2 at 27°C and 760 mm pressure. What is the percentage of Cu by weight in the alloy? (Atomic mass of Zn = 65.4 gm)

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Brass is an alloy of Cu-Zn. A sample of brass weighing 6.0 g, when treated with excess of dil. H2SO4 gives 328 mL of dry H2 at 27°C and 760 mm pressure. What is the percentage of Cu by weight in the alloy? (Atomic mass of Zn = 65.4 gm)

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