Chemistry, 11.02.2020 19:35 mohamedramadan

Equimolar solutions of copper(II) chloride, aluminum chloride, lithium chloride and calcium chloride are prepared. Which solution would be expected to have the highest conductivity? Hint: write the chemical formulas.

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Answer from: chonawilson4

The aluminium chloride solution will have the highest conductivity.

Explanation:

Conductivity is defined as the ability of a substance to conduct electricity.

When an ionic compound is dissolved in water, it dissociates into its respective ions.

As electricity is the flow of ions or electrons. So, an ionic compound will conduct electricity due to the presence of ions in the solution.

More number of ions dissociated in the solution, more amount of electricity will be conducted.

For the given options:

1) Copper (II) chloride

The chemical formula of the given compound is CuCl_2

It will dissociate to form 1 mole of $Cu^{2+}$ ions and 2 moles of Cl^- ions

Total number of ions in the solution = 3

2) Aluminium chloride

The chemical formula of the given compound is AlCl_3

It will dissociate to form 1 mole of $Al^{3+}$ ions and 3 moles of Cl^- ions

Total number of ions in the solution = 4

3) Lithium chloride

The chemical formula of the given compound is LiCl

It will dissociate to form 1 mole of $Li^{+}$ ions and 1 mole of Cl^- ions

Total number of ions in the solution = 2

4) Calcium chloride

The chemical formula of the given compound is CaCl_2

It will dissociate to form 1 mole of $Ca^{2+}$ ions and 2 moles of Cl^- ions

Total number of ions in the solution = 3

As, the number of ions is highest for aluminium chloride. So, it will have the highest conductivity.

Hence, the aluminium chloride solution will have the highest conductivity.

Answer from: Quest

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.

Answer from: Quest

answer: $2c_5h_5+1fe\rightarrow 1fe(c_5h_5)_2$

the reaction is type of combination reaction.

explanation:

$? c_5h_5+? fe\rightarrow ? fe(c_5h_5)_2$

on the product side, there are 2 molecules of $c_5h_5$ bonded to fe which means one atom of fe are combined two molecules of $c_5h_5$ . so, balanced chemical equation becomes :

$2c_5h_5+1fe\rightarrow 1fe(c_5h_5)_2$

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

$a+b\rightarrow ab$

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Equimolar solutions of copper(II) chloride, aluminum chloride, lithium chloride and calcium chloride...

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