Na2CO3 is added to prevent oxidation of cu+ ions which are repeatedly formed by reaction of Cu++ and I-.So, to prevent oxidation co2 is used in retarding reaction
potassium thiocyanate
Yes
Yes, KSCN can decompose into potassium sulfocyanate, sulfur dioxide, and nitrogen oxides when heated.
The name of the ionic compound KSCN is potassium thiocyanate.
potassium thiocyanate
Yes.. it is solid KSCN melted, so the ions transport the electricity. In the other hand solid KSCN would not transport any electricity.
10 g KSCN; add distilled water for a total volume of 1 L
The pH of a solution of potassium thiocyanate (KSCN) will depend on the concentration of the solution but will likely be close to neutral (around 7) since KSCN is a salt and will dissociate into its ions in water.
If a few drops of KSCN (potassium thiocyanate) are added to water, K+ cations would be present as KSCN dissociates into K+ and SCN- (thiocyanate) ions in water.
When you mix FeCl3 and KSCN, a blood red color forms due to the formation of Fe(SCN)2 complex. When AgNO3 is added to this solution, a white precipitate of AgSCN is formed, indicating the presence of thiocyanate ions in the solution.
Discolored AgNO3 in the titration with KSCN may indicate the presence of impurities or decomposition of the solution. This can lead to inaccurate results in the titration as the discolored solution may not react as expected with KSCN. It is important to use a fresh and clear AgNO3 solution for accurate titration results.
To prepare a 0.1N potassium thiocyanate (KSCN) solution, dissolve 2.01 grams of KSCN in distilled water and dilute to 1 liter. Be sure to use a volumetric flask for accuracy and precision in preparing the solution.