given the reaction -
Fe(s)+H2SO4(aq)->FeSO4(aq) + H2(g)
the volume of the balloon was 4400m^3 and the loss of hydrogen gas during filling was est. at 20%. what mass of iron splints and 87% (by mass) H2SO4 were needed to ensure complete filling of the balloon? assume temp of 0C pressure of 1.0atm and 100% yeild.

answer in kg

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