Every ________ will have its own unique set of quantum numbers.
1 answer:
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Answer:
0,31%
Explanation:
For the reaction:
I₂ + 2 S₂O₃²⁻ → 2 I⁻ + S₄O₆²⁻
0,043 L × 0,117 M of sodium tiosulfate = 5,031x10⁻³ moles of S₂O₃²⁻
5,031x10⁻³ moles of S₂O₃²⁻ × = <em>2,5156x10⁻³ moles of I₂</em>
These moles of I₂ were produced from:
ClO⁻⁻ + 2 H⁺ + 2 I⁻ → I₂ + Cl⁻ + H2O
2,5156x10⁻³ moles of I₂ ≡ moles of NaClO
2,5156x10⁻³ moles of NaClO × =<em> 0,187 g of NaClO</em>
Thus, percentage composition by mass is:
=<em> 0,31%</em>
I hope it helps!
Metallic sodium and chlorine gas are produced by the electrolysis of molten sodium chloride.
<h3>What is a word equation?</h3>A word equation represents a chemical reaction using the names of the substances involved.
a) Word equation:
Sodium chloride + electrolysis → Sodium hydroxide + Hydrogen gas, Chlorine gas
b) The following reactions take place during the electrolysis of brine solution :
NaCl =
=
Now there are two cations and two anions which get discharged in the following way :
At cathode : =
At anode: =
The remaining ions
= NaOH
That's why we get ,
and NaOH.
c) Balance each equation is:
2NaCl (l) → 2Na(s) + (g)
Learn more about the word equation here:
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