K2s2o3
K2PbO2
As a liquid, it weighs 12.2 pounds per gallon.
Potassium thiosulfate fertilizer weighs approximately 10.61 pounds per gallon.
One way is to react hot aqeous solution of potassium hydroxide (KOH) with sulphur (S). The products will be K2S3, K2S2O3 (potassium thiosulphate) and H2O. Answer by aditya rajesh, 8th student at millennium school in dubai.
The chemical formula is K2S2O3
The name of the ionic compound k2s is= Potassium Sulfide
Thiosulfate can be standardised by adding excess potassium iodide solution to a known volume of a standard acidified solution of potassium dichromate, and then titrating the liberated iodine against the sodium thiosulfate solution.http://www.meduniv.lviv.ua/files/kafedry/tokshim/English/Analytical/Manuals_Analytchem/Iodometry.pdf
kulot si odang
Potassium and sodium thiosulfate can turn yellow due to the formation of a colored complex with iodine. When iodine is added to a solution containing thiosulfate, it forms a triiodide ion which has a yellow color. This reaction is commonly used in chemistry as an indicator for the presence of thiosulfate ions in solution.
Potassium iodide is added to an organic layer before titration with sodium thiosulfate to facilitate the formation of iodine from the oxidation of iodide ions. This iodine can then be titrated with sodium thiosulfate, allowing for the quantitative analysis of oxidizing agents present in the organic layer. The reaction between iodine and thiosulfate is well-defined and allows for accurate determination of the concentration of the oxidizing species.
Standardization of sodium thiosulfate uses potassium iodate with excess potassium iodide and acidified. Iodine is liberated and that is titrated with sodium thiosulfate. KIO3 + 5KI + 3H2SO4 -----> 3K2SO4 + 3H2O + 3 I2 I2 + 2Na2S2O3 -------> 2NaI + Na2S4O6 So 1 mole of KIO3 produces 3 moles of Iodine. 1 moles of iodine reacts with 2 moles of thiosulfate. So 6 moles of sodium thiosulfate react with 1 mole of potassium iodate KIO3.
Potassium iodide (KI) does not react with sodium thiosulfate (Na2S2O3) because the two compounds belong to different chemical families and do not have a significant affinity for each other. KI is a salt of potassium and iodine, while sodium thiosulfate is a salt of sodium and thiosulfate ions. The lack of reactivity between KI and Na2S2O3 is due to their stable chemical structures and the absence of driving forces for a reaction to occur.