Chemistry 11 Special Topics – fertilizers, esterification, petroleum

ChemistryApplied & Practical ChemistryAges 16–17

Three Chemistry 11 special topics in one sim, selected with the topic parameter. Fertilizers: choose a fertilizer type and the amount applied per hectare, see the actual nutrient content, watch the crop grow and the yield rise along a curve before leveling off, and see how overuse causes eutrophication of water bodies. Organic chemistry practical: the esterification reaction CH₃COOH + C₂H₅OH ⇌ CH₃COOC₂H₅ + H₂O reaches equilibrium with K = 4 — change the alcohol/acid mole ratio to see the yield change. Petroleum: a fractional distillation tower with temperature varying by height, and the composition and uses of each fraction.