The equation CuSO4 + 2KCN -> Cu(CN)2 + K2SO4

  1. Detailed information about the equation CuSO4 + 2KCN -> Cu(CN)2 + K2SO4

The above equation represents the chemical reaction between Copper (II) Sulfate (CuSO4) and Potassium Cyanide (KCN) to produce Copper (II) Cyanide (Cu(CN)2) and Potassium Sulfate (K2SO4).

  1. Reaction Conditions

The standard conditions for this reaction to occur are a temperature of about 298K (25 degrees C) and a pressure of 1 atm. However, this reaction can occur at different temperatures and pressures.

  1. Reaction process
  • Stage 1: CuSO4 and KCN react with each other to produce Cu(CN)2 and K2SO4.

  • Stage 2: Cu(CN)2 and K2SO4 continue to react with each other to produce the final product.

This chemical reaction is a type of replacement reaction, where the Cu2+ ion of the CuSO4 compound is replaced by the CN- ion of the KCN compound.

  1. Phenomena observed

During the reaction process, you will see a color change in the solution. Initially, the solution is blue due to the presence of CuSO4. When KCN is added, the solution will turn colorless because Cu(CN)2 is colorless.

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