copper (thiocyanate)2 and potassium nitrate
If the copper nitrate formed is copper (I) nitrate, the equation balances with one atom of each metal and one formula weight of each nitrate. If the copper nitrate formed is copper (II) nitrate, the balanced equation is: 2 AgNO3 + Cu -> 2 Ag + Cu(NO3)2.
Cu(No3)2 is the formula for copper nitrate compund
The chemical formula of copper(II) nitrate is Cu(NO3)2.
On addition of the KI to your copper (II) solution, you formed Copper (I) iodine solid and produced the tri-iodide ion. It is the tri-iodide ion that you are titrating with the sodium thiosulfate. The tri-iodine ion is what itercalates into the starch molecules to form the dark blue color you are using as an end point in the titration. Some the the tri-iodide ion formed will adsorb to the surface of the solid copper (I) iodine formed. This must be desorbed for a complete titration. The addition of the potassium thiocyanate, displaces the adsorbed tri-iodine ion, and liberates it for titration.
Cuprous nitrtate is copper(I) nitrate. CuNO3. The copper is in oxidation state '1' The more usual form is cupric nitrate that is copper(II)nitrate. Cu(NO3)2 The copper is in oxidation state '2'. NB THe 'cuprous/cupric' comes the Latin name for copper , which is 'cuprum'.
This is the basic copper carbonate - Cu2(OH)2CO3.
Your balanced chemical equation for this double replacement reaction would be: Cu(NO3)2 + 2KOH ----> Cu(OH)2 + 2KNO3 Therefore, you would end up with copper II hydroxide and potassium nitrate.
On addition of the KI to your copper (II) solution, you formed Copper (I) iodine solid and produced the tri-iodide ion. It is the tri-iodide ion that you are titrating with the sodium thiosulfate. The tri-iodine ion is what itercalates into the starch molecules to form the dark blue color you are using as an end point in the titration. Some the the tri-iodide ion formed will adsorb to the surface of the solid copper (I) iodine formed. This must be desorbed for a complete titration. The addition of the potassium thiocyanate, displaces the adsorbed tri-iodine ion, and liberates it for titration.
how to mack copper sulphate,magnesium sulphate,potasasium cloride,potassium nitrate,iron chloride,calcium chloride,calcium suphate,calcium nitrate,copper nitrate,sodium nitrate,magnesium chloride,aluminum nitrate,siler nitrate. in a formula
Cu2CuN2S2
A Nitrate salt depending on what was used to neutralise the acid. E.g. If you used copper to neutralise the nitric acid then copper nitrate would be produced.
copper nitrate is also called as cupric nitrate
Cu + 2HNO3 --> Cu(NO3)2 + H2Looks like copper nitrate.
copper+nitric acid > copper nitrate+hydrogen copper+sulpuric acid> copper sulphate+ hydrogen copper+potassium chloride> copper chloride+ hydrogen copper+ zinc carbonate (powder metal) > copper+ zinc + water + carbon dioxide zinc+nitric acid > zinc nitrate+ hydrogen etc just replace the copper in the above equations with 'zinc' for all the zinc solutions x
The chemical formula for copper (I) nitrate is CuNO3.
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.
copper nitrate :)