Acid sulphates soils are naturally occurring soils. These soils contain iron sulphide minerals. High content of sulphate
Posted: Mon May 16, 2022 2:17 pm
Acid sulphates soils are naturally occurring soils. These soils contain iron sulphide minerals. High content of sulphate in soil can lead to adverse ecological impacts including the damage of aquatic life, disturbance of ground water and damage of agriculture. Sulphate content can be determined by gravimetric analysis, Analyze the table below of some inorganic precipitating agent and answer the questions. Precipitating agent His Element precipitated Cu (Cuo), Zn (ZnO or Zn2O4), Ge (Geo), As (As2O, or As2Os), Mo (MoOs). Sn (SnO2), Sb (Sb2O3 or Sb2Os), As (As2O, or As2O3) Li (Li2SO4), Mn (MnSO4, Sr (Sr SO4), Cd (CdS04), Pb (PbSO4), Ba (BaSO.) SO42-(BaSO4) Ag (AgCl), Hg (Hg.Cla), Na (NaCl), Si (SiO2) H2SO4 BaCl2 HCI a a. Suggest an analytical precipitation gravimetric method for the determination of sulphate in a soil sample. Discuss if any sample preparation is required before the analysis and the steps for the analysis process. (Hint use the table to select the precipitating agent). (5 Marks)