Anonymous
Anonymous asked in Science & MathematicsChemistry · 5 months ago

# Balance chemical equation: ____Na2S2O3(aq) + ____Cl2(g) +____H2o(l)-----> ___NaHSO4(aq) +___HCI(aq)?

Relevance

Na2S2O3(aq) + 4Cl2(g) + 5H2O(l) -----> 2NaHSO4(aq) + 8HCI(aq)

• Balancing a redox reaction ....

Use the half reaction method

S2O3^2- + Cl2 --> HSO4^- + Cl- ............ start with the ions

S2O3^2- + 5H2O --> 2HSO4^- + 8H+ + 8e- .... oxidation half-reaction

4(Cl2 + 2e- --> 2Cl-) ................. .................... ... reduction half-reaction

------------------ --------------------- ----------------- -----------

S2O3^2- + 4Cl2 + 5H2O --> 2HSO4^- + 8Cl- + 8H+ .... balanced net ionic eqn.

Now, if you like, you can write a balanced "molecular" equation.

Na2S2O3(aq) + 4Cl2(g) + 5H2O(l) --> 2NaHSO4(aq) + 8HCl(aq)

• Na2SO3 + Cl2 + H2O → 2 NaHSO4 + 2 HCl

• pisgahchemist
Lv 7
5 months agoReport

Daniel, you copied electron1's answer, so both of you got it wrong. Just do your own work and don't copy and paste from another answer.

• Na2SO3 + Cl2 + H2O → NaHSO4 + HCl

To balance Na, we need two NaHSO4. To balance Cl, we need two HCl.

Na2SO3 + Cl2 + H2O → 2 NaHSO4 + 2 HCl

The left side of this equation has four oxygen atoms, and the right side of this equation has four oxygen atoms. The left side of this equation has two hydrogen atoms, and the right side of this equation has two hydrogen atoms. This proves the equation is balanced. I hope this is helpful for you.

• electron1
Lv 7
5 months agoReport

Thank you