126 the rosctoin o formcarbon disulfide, CS, and carbos dioxide. mol of carbon i

Question

126 the rosctoin o formcarbon disulfide, CS, and carbos dioxide. mol of carbon is 4. Carbon reacts with sulfur dioxide, SO,, form The balanced equation for the reaction is: consumad srams of carbon disulide, cs, wil form if mass of CS2 (b) I 10.0 g of carbon ure consumed, how many mole of carbon dioxide, CO, will form? how many mole of CO2 = tron metal and water. The unbalanced equation is: ai sde. Pegoy reacts with hydrogen gas, Ha, at elevated temperatures to produce (a) What mass of hydroge mass of H- b) What mass of iron(III oxide, Fe,O, must be consumed to prepare 2.50 g of iron metal? mass of Fe20,-

Explanation / Answer

Ans 4 :

a)

3 moles of C makes 1 mole of CS2

So 0.450 moles of C will make 0.450 /3 = 0.150 mol of CS2

Mass of CS2 formed = 0.150 x 76.139

= 11.42 grams

b)

10.0 g of carbon = 10.0 / 12.01 = 0.83 moles

3 moles of C make 2 moles of CO2

So 0.83 moles of C will make (0.83 x 2) /3

= 0.55 mol of CO2

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