Why is hydrochloric acid a strong electrolyte?
Any substance that allows electricity to pass through it in its molten or solution state, is called an electrolyte.HCl, being an arrhenius acid, dissolves in water and being a strong acid, dissociates completely. Hence in an aqueous solution of HCl, all you have is a lot amount of Hydrogen and chloride ions which becomes carrier of electricity to pass through it.Hence, HCl is a strong electrolyte.
Can some1 explain why is HCL a strong electrolyte and HF is a weak one?
During electrolysis, the oxygen atom in H20 has 2 pairs of unbonded electrons, and it is these electrons that act as "solvents" breaking the bond between atoms and attacking the postive ion that forms as a result. So you can visualize a solution as islands of ions surrounded by water ions, with the extra electrons of oxygen surrounding the positive ions and the negative ions surrounded by the hydrogens of water. A "strong" electrolyte is one that dissociates almost completely into ions i.e the water molecules break its bond and surround its ions easily. HCl is a good example. HF is an exception. Since F is the element with the strongest electronegativity (4.0) it forms very strong bonds. And, apparently, water molecules just don't have the ability to break the H-F bond, so very little of HF ionizes in water. Talking about HF, it is one of the few compounds (and as far as I know, the only compound) that can attack glass (Si03) to form fluorosilicates.
Why is chlorine gas given off at anode during the electrolysis of dilute HCL and not oxygen?
Oxidation takes place at the anode (to help remember, oxidation and anode both start with vowels).Chlorine ion is oxidized to Cl2 by losing two electrons.2Cl- —→ Cl2 + 2e- (Lose Electrons Oxidized)Therefore, Cl2 gas is give off at the anode.
Why is NaOH formed during the electrolysis of NaCl, and why isn't HCl formed?
In the electrolysis of NaCl in Nelsons cell, the following reactions occur :H2O ————————-> H+ And OH-NaCl ———————->Na+ and Cl-Now,Hydrogen has greater tendency to accept electrons from the CATHODE than the Sodium . Because Reduction potential of Hydrogen is greater ( 0.00 Volt ) than that of sodium ( -2.71 Volt ).Thus H+ ions discharge as H2 gas . And sodium ions remain in the solution.Now, Cl- has greater tendency to loss the electrons at the Anode. Thus discharges as Cl2 gas as compared to the Hydroxide ion .In the reaction chamber, there remain only sodium and Hydroxide ions .They react with each other to form NaOH.Now to your question! As the hydrogen and chlorine are made to be eliminated at the separate ( different ) electrodes in the cell , they never form the HCl. But if you made both the gases to react outside the cell, you can get the HCl fumes .The reason is that the Electrolysis of NaCl are performed in the aqueous ( H2O ) medicine the Nelsons cell. The formation of HCl would make the condition acidic.
A question on hydrogen chloride in a aqueous solution, please help?
Hydrogen chloride in the gaseous state is in the form of a covalent molecules, yet in aqueous solution it behaves as a strong electrolyte, conducting electricity. The explanation for this solution behavior is that A. HCl forms ionic crystals in the solid state B. HCl reacts with water to form ions C. although it is a covalent substance, the molecules of HCl are polar and stay in solution
Will hydrochloric acid (HCl) act as an electrolyte without dissolving in water?
HCl is actually hydrogen chloride and is a diatomic molecule, consisting of a hydrogen atom H and a chlorine atom Cl connected by a single covalent bond. It is a colourless gas with a sharp, pungent odour. The bond is polar since the chlorine atom is much more electronegative than the hydrogen atom. Hydrogen chloride only ionises on dissolution in water when hydronium cations and chloride anions are formed and a solution of hydrochloric acid is produced.HCl + H2O → H3O+ + Cl−
Does HCL and NACl form a gas?
Yes. Hydrogen chloride is a gas at room temperature. It's boiling point is -85C. Sodium chloride boils at 1,413C. Each is a gas above their boiling point.
Is HCL liquid or gas?
The compound hydrogen chloride has the chemical formula HCl. At room temperature, it is a colorless gas, which forms white fumes of hydrochloric acidupon contact with atmospheric humidity. Hydrogen chloride gas and hydrochloric acid are important in technology and industry. Hydrochloric acid, the aqueous solution of hydrogen chloride, is also commonly given the formula HCl.source-wikipedia
When HCl and NaOH react in an aqueous solution, the H+ and OH- combine to form?
Water. What you've got is a strong acid (HCl) reacting with a strong base (NaOH) creating a neutralisation reaction, which forms water and a salt: HCl + NaOH ---> H2O + NaCl
CHEM HELP PLEASE? What is the explanation of Hydrogen Chloride in gaseous and aqueous state?
Hydrogen chloride in the gaseous state is in the form of covalent molecules, yet in aqueous solution it behaves as a strong electrolyte. The explanation for this solution behavior is that 1. HCl forms ionic crystals in the solid state. 2. although it is covalent, the molecule of HCl is polar, and stays in solution as a polar molecule, conducting electricity. 3. at lower temperatures, HCl becomes ionic. 4. HCl reacts with water to form ions. 5. there is more than one form of gaseous HCl.