6. Chemical Quantities & Aqueous Reactions

Balancing Redox Reactions: Acidic Solutions

Open Question
Which is an important step in the alternate method for balancing equations in redox reactions?
470
views
Multiple Choice
What is the coefficient of Fe³⁺ when the following reaction is balanced?
Bi³⁺ (aq) + Fe³⁺ (aq) + H₂O (l) → BiO₃^-(aq) + Fe²⁺ (aq) + H⁺ (aq)
1871
views
2
rank
Multiple Choice
Phosphoric acid H₃PO₄ has many industrial uses and is often found in some cola drinks. If you had 25.0 mL of a 0.200 M solution of H₃PO₄, how many mL of a 0.400 M solution of Ba(OH)₂ would be required to neutralize the acid according to the following reaction? ?
2 H₃PO₄ (aq) + 3 Ba(OH)₂ (aq) → Ba₃(PO₄)₂ (s) + 6 H₂O (l)
782
views
Multiple Choice
A 10.00-mL sample of a 0.130 M H₃PO₄ solution is added to 13.00 mL of a 0.150 M Ba(OH)₂ solution. When the reaction is complete, what spectator ions are present?
2 H₃PO₄ (aq) + 3 Ba(OH)₂ (aq) → Ba₃(PO₄)₂ (s) + 6 H₂O (l)
608
views
Multiple Choice
A 25.00-mL sample of H₂SO₄ solution of unknown concentration requires 28.27 mL of a 0.185 M KOH solution to complete the neutralization reaction. What is the concentration of the unknown H₂SO₄ solution?
542
views
Multiple Choice
Balance the following redox reaction in an acidic solution.
Cl₂ (g) + S₂O₃^2-(aq) → Cl^- (aq) + SO₄^2- (aq)
6250
views
5
rank
Open Question
Write a balanced overall reaction from these unbalanced half-reactions. Cu ⟶ Cu²⁺ Ag⁺ ⟶ Ag
417
views
1
comments
Open Question
Complete and balance the following half-reaction in acidic solution
946
views
Open Question
What is the oxidizing agent in the reaction Zn + 2 H⁺ → Zn²⁺ + H₂?
737
views
Open Question
Write a balanced overall reaction from these unbalanced half-reactions. In ⟶ In³⁺ Cd²⁺ ⟶ Cd
352
views
Open Question
Write a balanced overall reaction from these unbalanced half-reactions. In⟶In³⁺Cd²⁺⟶Cd
398
views
Open Question
In the equation PbO₂ + 4 HCl → 2 H₂O + PbCl₂ + Cl₂, how many electrons are transferred?
688
views