How many kilograms of limestone should be added for every kilogram of iron ore processed in a blast furnace if the limestone is 91.40% pure and the iron ore contains 14.40% SiO2 by mass? (Note: SiO2(s) + CaCO3(s) -- CaSiO3(s) + CO2(g))
Let UNITs guide you; always USE THEM in your calculation to prevent errors SiO2(s) + CaCO3(s) -- CaSiO3(s) + CO2(g) kmoles CaCO3 / kg limestone 0.9140 kg of CaCO3/MW CaCO3 in kg/kmoles ? kmole of SiO2 / kg ore 0.1440 kg of SiO2 / MW of SiO2 in kg/kmole ? kg limestone / kg ore kmoles SiO2/kg of ore / kmoles CaCO3/kg of limestone ? Plug and SOLVE Basic mathematics is a prerequisite to chemistry – I just try to help you with the methodology of solving the problem.
