Problem 2- 12 marks Antimony is obtained by heating pulverized stibnite (Sb2S3) with scrap iron and drawing off the molten antimony from the bottom of the reaction vessel. Sb2S3+3Fe2Sb+3FeS Suppose that 0.6kg of stibnite and 0.25kg of iron turnings are heated together to give 0.2kg of Sb metal. Determine: a) The limiting reactant. b) The percentage of excess reactant. c) The degree of completion (fraction). d) The percent conversion based on Sb2S3. e) The yield in kgSb produced per kgSb2S3 fed to the reactor