The first recorded observation of hydrogen gas was recorded by the famous alchemist paracelsus when he added iron to sulfuric acid. Calculate the mass of hydrogen gas produced when paracelsus dissolved 10.0g of iron in excess sulfuric acid
2Fe + 3H2SO4 --> Fe2SO4 + 3H2
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Expert's answer
2020-06-08T15:04:49-0400
2Fe + 3H2SO4 --> Fe2(SO4)3 + 3H2
n(Fe) = 10.0g / 55.8g/mol = 0.18 mol
According to the equation, n(H2) = 3/2 x n(Fe) = 0.27 mol
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