Answer:
b. Two moles of thiosulfate anion needed to react with one mole of hypochlorite anion.
Explanation:
1. Hypochlorite with iodide
2I⁻ ⟶ I₂ + 2e⁻
<u>ClO⁻ + 2H⁺ + 2e⁻ ⟶ Cl⁻ + H₂O </u>
2I⁻ + ClO⁻ + 2H⁺ ⟶ I₂ + Cl⁻ + H₂O
2. Thiosulfate with iodine
2S₂O₃²⁻ ⟶ S₄O₆²⁻ + 2e⁻
<u> I₂ + 2e⁻ ⟶ 2I⁻ </u>
2S₂O₃²⁻ + I₂ ⟶ S₄O₆²⁻ + 2I⁻
3. Sum of the reactions
2I⁻ + ClO⁻ + 2H⁺ ⟶ I₂ + Cl⁻ + H₂O
<u> 2S₂O₃²⁻ + I₂ ⟶ S₄O₆²⁻ + 2I⁻ </u>
2I⁻ + ClO⁻ + 2S₂O₃²⁻ + 2H⁺ ⟶ I₂ + Cl⁻ + S₄O₆²⁻ + H₂O
4. Molar ratio
S₂O₃²⁻:ClO⁻ = 2:1
3700 microL is the answer
Hope it was correct :)
Answer:
a single d orbital can hold 10 electrons
It is B balance, because it has a 0,01 g divisions scale. The minimun division in A balance is only 0,1 g, i.e, decigram measurement.
A cation will not replace an anion in a compound because the two positively-charged ions will repel each other.
<h3>Ions</h3>
Ions are atoms or group of atoms possessing an electrical charge.
- Positively-charged ions are known as cations.
- Negatively-charged ions are known as anions.
<h3>Ionic compounds</h3>
Ionic compounds are compounds which are composed of oppositely charged ions held together by strong electrostatic forces of attraction between the oppositely charged ions.
- From law of electrostatics, like charges repel and unlike charges attract.
If a cation replaces an anion, the compound would have two l positive charges which will repel each other.
Therefore, a cation will not replace an anion in a compound because the two positively-charged ions will repel each other.
Learn more about ions and electrostatics at: brainly.com/question/13690700
