What does copper sulfate pentahydrate decompose into?

Copper(II) sulfate pentahydrate decomposes before melting, losing four water molecules at 110 °C and all five at 150 °C. At 650 °C, copper(II) sulfate decomposes into copper(II) oxide (CuO) and sulfur trioxide (SO3). When heated in an open flame the crystals are dehydrated and turn grayish-white.

What happens when copper sulfate pentahydrate is heated?

– When copper sulphate pentahydrate is heated, it loses water of crystallization as a result of evaporation. – Losing water of crystallization turns hydrated copper sulphate into anhydrous copper sulphate salt.

Is CuSO4·5H2O decomposition?

When copper(II) sulfate pentahydrate (CuSO4·5 H2O) is heated, it decomposes to the dehydrated form. The waters of hydration are released from the solid crystal and form water vapor. The hydrated form is medium blue, and the dehydrated solid is light blue.

What is the equation for dehydration of CuSO4·5H2O?

The hydrated form is medium blue, and the dehydrated solid is light blue. The balanced equation is: CuSO4 * 5 H2O(s) –> CuSO4(s) + 5 H2O(g) If 4.47 g CuSO4 * 5 H2O is decomposed to CuSO4, predict the mass of the remaining light blue solid.

What is the equation for dehydration of CuSO4 5h2o?

What happens when CuSO4·5H2O is dissolved in water?

The bright blue pentahydrate CuSO4·5H2O is the most commonly encountered form of copper(II) sulfate. It exothermically dissolves in water to give the aquo complex [Cu(H2O)6]2+, which has octahedral molecular geometry.

What happens when CuSO4 5H2O is dissolved in water?

Which equation best describes what is happening to the copper II sulfate pentahydrate as it is heated?

(a) Solid copper(II) sulfate pentahydrate is gently heated. (i) Balanced equation: CuSO4•5H2O → CuSO4 + 5 H2O One point is earned for the reactant.

What do you do to change the colour of CuSO4 5H2O from blue to white?


  1. On heating CuSO₄ . 5H₂O the blue color of the copper sulphate fades away and it turns into white in color and the water molecules get evaporated.
  2. However on adding water again the solution regains it’s bleu color.
  3. CuSO₄ . 5H₂O(s) ⇄ CuSO₄(s) + 5H₂O↑(g)

Why is the color of CuSO4 5H2O is blue?

It is so because of the presence of water of crystallisation which facilitates the transition which transmits color to the compound. Complete step by step answer: The hydrated copper sulphate \[CuS{O_4} \cdot 5{H_2}O\] is blue in color.

Is dehydration and hydration of copper sulfate reversible?

This water is driven off when blue hydrated copper sulfate is heated, leaving white anhydrous copper sulfate. This reaction is reversible: The forward reaction is endothermic and the reverse reaction is exothermic. 1. Hydrated copper (II) sulfate is heated

What happens when you heat hydrated copper sulfate?

Set up the apparatus as shown (but without water in the receiving tube – this is to be collected during the experiment),placing about 5 g of powdered hydrated copper

  • Heat the blue copper (II) sulfate until it has turned white.
  • Act quickly to prevent suck-back if the level of water collecting in the test-tube reaches the end of the delivery tube.
  • Does copper react with copper sulphate?

    Originally Answered: Does copper reacts with copper sulphate? No, since copper metal ( Cu (O)) and Cu (2+) are only a half-cell potential equation ” Cu (0) + Cu (2+) -> no rxn.

    Does Copper II sulphate have a high melting point?

    Melting point 200°C with decomposition. Non-combustible. Copper (II) sulfate is a metal sulfate compound having copper (2+) as the metal ion. It has a role as a sensitiser, a fertilizer and an emetic. It contains a copper (2+). Conformer generation is disallowed since MMFF94s unsupported element, mixture or salt