Cu2I2 is precipitates in light pink colour due to adsorption of I2 and the precipitate releases I2 very slowly. Therefore very small amount of potassium thiocyanate is added towards the end point which helps to displace the adsorbed I2 quickly by combining with Cu2I2 to form CuSCN which has less tendency to adsorb I2.
analysis purpase
no
871 grams
An Element higher in the Reactivity Series will displace an Element lower in the Reactivity Series in a compound. Example. Potassium + Zinc Sulphate --> Potassium Sulphate + Zinc
2koh + h2so4 = k2so4 + 2h20
potassium dichromate
The electrovalency of potassium in any of its ionic compounds, such as potassium sulphate, is +1.
The formula for potassium sulfate is K2SO4, which indicates that each unit of the compound contains two potassium ions (K+) and one sulfate ion (SO4 2-).
Potassium Sulphate (Sulphate's arrow=bold, Potassium's arrow=normal)KSO41 2K2SO4
analysis purpase
The symbol for potassium sulphate is K2SO4 . It contains K+ and SO42- ions.
K2CrO4 + BaSo4 ----------> BaCrO4 (Precipitate) + K2SO4 Potassium Barium Barium Potassium Chromate Sulphate Chromate Sulphate It Is A Double Displacement Reaction
Well, first off, you list the same substance twice but potassium sulfate contains potassium, sulfur, and oxygen.
first of all its not chemical equation is chemical formula Potassium Sulphate: K2SO4 Potassium Sulphite: K2SO3
K2SO4
Magnesium sulphate
Potassium hydroxide + sulphuric acid = Potassium sulphate + water