1) why do copper 2 sulfate chrystals not conduct electricty?
2)why is copper 2 sulfate solution a good conductor of electricity?
3)why is water a poor conductor of electricity ,
1) why do copper 2 sulfate chrystals not conduct electricty?
In the solid state, the ionic crystals can't move because they are aligned in a crystal lattice.
2)why is copper 2 sulfate solution a good conductor of electricity?
In the aqueous state, the crystal lattice is broken down and the copper ions and sulfate ions are free to move in the solution. Therefore, these ions can conduct an electrical current from one electrode to the other.
3)why is water a poor conductor of electricity ,
There are few ions present in pure water.
1) Copper (II) sulfate crystals do not conduct electricity because in its solid state, the copper ions (Cu2+) are held in a rigid, fixed position within the crystal lattice. These ions cannot move freely to carry electrical charge. The sulfate ions (SO42-) are also immobilized in the crystal structure. Since there are no free ions or mobile charge carriers available, the crystal cannot conduct electricity.
To arrive at this conclusion, you can consider the fact that conductors require the presence of free ions or mobile charge carriers to carry electrical charge. Copper (II) sulfate crystals, in their solid state, do not possess these mobile charge carriers.
2) Copper (II) sulfate solution is a good conductor of electricity because, when dissolved in water, the compound dissociates into positively charged copper ions (Cu2+) and negatively charged sulfate ions (SO42-). These ions are free to move in the solution, leading to the presence of mobile charge carriers.
To understand this concept further, you can consider the fact that in an aqueous solution, when an ionic compound dissolves, it breaks up into its constituent ions. These free ions are capable of flowing through the solution and carrying electrical charge, making the solution a good conductor of electricity.
3) Water is a poor conductor of electricity because it is a covalent compound that does not dissociate into charged ions. In its pure form, water consists of individual water molecules, with each molecule composed of two hydrogen atoms bonded to one oxygen atom.
To understand why water is a poor conductor, you can consider that conductive materials generally have free ions or mobile charge carriers which can move and carry electrical charge. However, in the case of water, the hydrogen and oxygen atoms are strongly bonded within individual molecules, resulting in a lack of free ions or charged particles.
It is important to note that although water itself is a poor conductor, it can become a conductor in the presence of dissolved ionic substances or impurities, which provide the necessary ions for electrical conductivity.