Pb²+ (aq) + Mg(s) → Pb(s) + Mg²+ (aq) Express your answer using three significant figures. K= 2.2354 Submit Request Answer Part B - ΑΣΦ Br₂ (1) + 2 Cl(aq) → 2 Br¯(aq) + Cl₂(g) Express your answer using two significant figures. K = 97 ΑΣΦ ? ?

Chemistry
10th Edition
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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solve a b, and c

 

c) 

MnO2(s)+4H+(aq)+Cu(s)→Mn2+(aq)+2H2O(l)+Cu2+(aq)MnO2(�)+4H+(��)+Cu(�)→Mn2+(��)+2H2O(�)+Cu2+(��)
Express your answer using two significant figures.
     
     
     
  →2Br−(aq)→2Br−(��) 1.09
Cl2(g)+2e−Cl2(�)+2�− →2Cl−(aq)→2Cl−(��) 1.36
MnO2(s)+4H+(aq)+2e−MnO2(�)+4H+(��)+2�− →Mn2+(aq)+2H2O(l)→Mn2+(��)+2H2O(�) 1.21
Cu2+(aq)+2e−Cu2+(��)+2�− →Cu(s)→Cu(�)  
Calculate the equilibrium constant for each of the reactions at 25 °C.
Standard Electrode Potentials at 25 °C
Reduction Half-Reaction
Pb²+ (aq) + 2 e¯ → Pb(s)
2+
Mg²+ (aq) + 2 e¯¯ → Mg(s)
→ 2 Br¯ (aq)
Br₂(l) +2 e¯
Cl₂(g) +2 e¯
→ 2 Cl¯(aq)
MnO₂ (s) + 4 H+ (aq) + 2 e¯ → Mn²+ (aq) + 2 H₂O(l)
Cu²+ (aq) + 2 e¯ → Cu(s)
E° (V)
-0.13
-2.37
1.09
1.36
1.21
0.16
▼ Part A
▼
Pb²+ (aq) + Mg(s) → Pb(s) + Mg²+ (aq)
Express your answer using three significant figures.
K = 2.2354
Submit
Part B
ΑΣΦ
K =
Request Answer
Br₂ (1) + 2 Cl¯(aq) → 2 Br¯(aq) + Cl₂(g)
Express your answer using two significant figures.
|| ΑΣΦ
www
?
?
Constants Periodic Table
Transcribed Image Text:Calculate the equilibrium constant for each of the reactions at 25 °C. Standard Electrode Potentials at 25 °C Reduction Half-Reaction Pb²+ (aq) + 2 e¯ → Pb(s) 2+ Mg²+ (aq) + 2 e¯¯ → Mg(s) → 2 Br¯ (aq) Br₂(l) +2 e¯ Cl₂(g) +2 e¯ → 2 Cl¯(aq) MnO₂ (s) + 4 H+ (aq) + 2 e¯ → Mn²+ (aq) + 2 H₂O(l) Cu²+ (aq) + 2 e¯ → Cu(s) E° (V) -0.13 -2.37 1.09 1.36 1.21 0.16 ▼ Part A ▼ Pb²+ (aq) + Mg(s) → Pb(s) + Mg²+ (aq) Express your answer using three significant figures. K = 2.2354 Submit Part B ΑΣΦ K = Request Answer Br₂ (1) + 2 Cl¯(aq) → 2 Br¯(aq) + Cl₂(g) Express your answer using two significant figures. || ΑΣΦ www ? ? Constants Periodic Table
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