If the hydrogen used was produced by the reaction of carbon with steam, how many kilograms of carbon would have been needed to produce enough

If the hydrogen used was produced by the reaction of carbon with steam, how many kilograms of carbon would have been needed to produce enough hydrogen to fill the dirigible at 21 C and 733 mm Hg pressure? C(s)+H2O(g)→CO(g)+H2(g)

Volume of 1. 9 9 X10' _ of H at STP1.94 x 108 * 733 X 27329 4760= 1. 78 X 108Noof moles of This H.2 gown2 1. 78 X108= $7 . 956 x 109` motes22 . 4"This is formed From 7. $56x10'5...