What happens when you add Cl2 to water?
And once again the "Gutefrage" team has to play referee.
I am of the opinion that if you introduce Cl2 into water, the reaction equation should be
Cl2 + H2O <-> Cl- + ClO- + 2H+
But now there are also fellow students who have
Cl2 + H2O <-> ClO- + O- + 1/2 H2
I'm a little confused about the alternative solution. Why you have half an H2 atom instead of two H+ atoms.
In the lecture we once had this notation Cl + OCl- + 2H+
and these: Clo + ClO- + 2H+
So now I have three different reaction equations for the same reaction
- Cl2 + 2HO <-> Cl- + OCl- + 2H+
- Cl2 + H2O <-> Cl- + ClO- + 2 H+
- Cl2 + H2O <-> ClO- + O- + 1/2 H2
Since my professor would probably jump in my face with his bare buttocks if I gave him three different solutions in the exam ("If there are multiple solutions, the problem is considered unsolved"), I thought I'd ask what the correct answer might be.
With grayish feet,
JensGeography8th grade, 1st semester
(1 votes)
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The reaction equation
Cl2 + H2O <-> ClO- + O- + 1/2 H2
that they can’t vote. The stoichiometry is not true. On the left there are two mol of elemental chlorine while on the right only one mol remains. On the left is a mol of elemental oxygen while on the right there are two mols.
Cl2 + 2 HO <-> Cl- + OCl + 2H+
It’s probably a typo, it must be H2O. Whether you write OCl or ClO- remains the same, it is shown that the entire molecule is negatively charged. Whether the negative charge is on the chlorine or on the oxygen, doesn’t matter. So OCl and ClO are both right.
okidoki, thank you all the time confused with the OCl and ClO.
Merci!
If one looks carefully at the reaction equations, then one would have to recognize this without difficulty with minimal knowledge of chemistry.
Cl2 + 2 H2OCl+2H+
Count the H and O atoms on both sides. then it quickly becomes clear that it is Murks.
Cl2 + H2OCl+2H+
Here is the mass balance. Alternatively, you can also formulate:
Cl2 + H2O⇌ HCl + HOCl
Cl2 + H2O <-> ClO- + O- + 1/2 H2
That’s a complete quark. It disproportionates only the chlorine and nothing else. At no rate is hydrogen formed and an O− is not at all. In addition, the cargo balance is not true.
Sodium hypochlorite is introduced into sodium hydroxide solution by introducing chlorine gas
2 NaOH+Cl2⟶NaCl+NaOCl+H2O
Formally, this is a hydrolysis of the chlorine.
H2O+Cl2⟶HCl+HClO
see Wiki
m.f.G.
present