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Questions
From the equation:
\[\ce{C + 2H2SO4 -> CO2 + 2H2O + 2SO2}\]
Calculate the mass of carbon oxidized by 49 g of sulphuric acid (C = 12, relative molecular mass of sulphuric acid = 98)
From the equation:
\[\ce{C + 2H2SO4 -> CO2 + 2H2O + 2SO2}\]
Calculate the mass of carbon oxidized by 49 g of sulphuric acid.
Solution
\[\ce{\underset{12 g}{C2} + \underset{2(98)}{2H2SO4} -> CO2 + 2H2O + 2SO2}\]
196 g of sulphuric acid is required to oxidise 12 g of carbon
1 g of sulphuric acid is required to oxidise `12/196` g of carbon
49 g of sulphuric acid is required to oxidise `12/196 xx 49` g of carbon = 3 g of carbon
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