Which of the reactions involving metal ions (Equations 1A – 6B ) represent redox reaction(s)? Write down the entire equation(s) AS WELL AS their corresponding balanced oxidation half-reaction(s) AND reduction half-reaction(s).
Ag+(aq)+ HCl(aq)+ H2O(l) -> AgCl(s, white)+ H3O+(aq) Eq. 1A
AgCl(s)+ 2NH3(aq) -> [Ag(NH3)2]+(aq)+ Cl–(aq) Eq. 2A
Fe3+(aq)+ 3NH3(aq)+ 3H2O(l) -> Fe(OH)3(s)+ 3NH4(aq) Eq. 3A
Fe3+(aq)+ 6SCN–(aq) -> Fe(SCN)63–(aq, blood-red) Eq. 4A
Co2+(aq)+ 7NO2–(aq)+ 3K+(aq)+ 2H3O+(aq) -> NO(g)+ 3H2O(l)+ K3[Co(NO2)6](s, yellow) Eq. 6A
2 NO(g, colorless)+ O2(g) →2NO2(g, red-brown) Eq. 7A
Mn2+(aq)+ 2OH–(aq) -> Mn(OH)2(s) Eq. 1B
14H3O+(aq)+ 2Mn2+(aq)+ 5BiO3–(aq) -> 2MnO4–(aq, puple)+ 5Bi3+(aq)+ 21H2O (l) Eq. 2B
[Al(H2O)6]3+(aq)+ 3OH–(aq) -> Al(H2O)3(OH)3(s)+ 3H2O(l) Eq. 3B
Al3+(aq)+ 3NH3(aq)+ 3H2O(l)+ aluminon -> [Al(OH)3*aluminon](s, pink)+ 3NH4+(aq) Eq. 4B
[Zn(H2O)4]2+(aq)+ 2OH–(aq) -> Zn(H2O)2(OH)2(s)+ 3H2O(l) Eq. 5B
3Zn2+(aq)+ 2K4[Fe(CN)6](aq) -> K2Zn3[Fe(CN)6]2(s, light green)+ 6K+(aq) Eq. 6B
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Which of the reactions involving metal ions (Equations 1A – 6B ) represent redox reaction(s)? Write...
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.774 M and [Sn2 ] = 0.0190 M. Standard reduction potentials can be found here. Reduction Half-Reaction Standard Potential Ered° (V) F2(g) + 2e– → 2F–(aq) +2.87 O3(g) + 2H3O+(aq) + 2e– → O2(g) + 3H2O(l) +2.076 Co3+(aq) + e– → Co2+(aq) +1.92 H2O2(aq) + 2H3O+(aq) + 2e– → 2H2O(l) +1.776 N2O(g) + 2H3O+(aq) + 2e– → N2(g) + 3H2O(l) +1.766 Ce4+(aq) + e– → Ce3+(aq)...
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance reduced, the oxidizing agent, the reducing agent. 1.2 Mg(s) + O2(g) → 2 MgO (s) 2. H SO. (aq) + Al(OH) (aq) → Al(SO.) (aq) + H,O (1) 3. 2 Na (s) + H2O (1) ► 2 NaOH(aq) + H2(g) 4. Cao (s) + CO2(g) → Caco, (s) 5. AgNO, (aq) + NaCl (aq) ► AgCl(s) + NaNO, (aq) Identify the substance oxidized, the...
Balance the following redox reaction occurring in basic
solution.
Ag(s) + CN- (aq) + O2(g) → Ag(CN), (aq) 2 Ag(s) + 4CN (aq) +202 + H2O(l)(9) + 2 Ag(CN)2 (aq) + 2OH(aq) • 2 Ag(s) + 8 CN (aq) + 402 + 2 H20(1)(g) + 4 Ag(CN)2 (aq) +8 OH(aq) 4 Ag(s) + 2 CN (aq) + O2 + 4H2O(1)(9) + 4 Ag(CN)2 (aq) + 8 OH (aq) 4 Ag(s) + 8 CN (aq) + O2 + 2 H20(1)(9) +...
Select the Redox Reactions: A) Mg + 2H+--> Mg2+ +H2(g) B) K2CO3(aq) + Sr(NO3)2(aq)--> SrCO3(s) + 2KNO3(aq) C) 2OH- + 2ClO-2 --> ClO2- + ClO3- + H2O D) H+ + OH- --> H2O E) KSCN (aq) + Fe(NO3)3(aq) --> FeSCN2+(aq) + KNO3 (aq) + 2NO3- (aq) F) AgCl(s) +2NH3(aq) --> Ag(NH3)2+ (aq) +Cl- (aq)
Which of the following is easiest to oxidize? a. H2(g) b. Zn(s) c. Ag(s) d. H2O(l) e. Cu(s) The half?reaction occurring at the cathode in the balanced reaction shown below is ________. 3MnO4 ? (aq) + 24H+ (aq) + 5Fe (s) ? 3Mn2+ (aq) + 5Fe3+ (aq) + 12H2O (l) a. MnO4 ? (aq) + 8H+ (aq) + 5e? ? Mn2+ (aq) + 4H2O (l) b. 2MnO4 ? (aq) + 12H+ (aq) + 6e? ? 2Mn2+ (aq) + 3H2O (l) c. Fe (s) ? Fe3+ (aq) + 3e? d. Fe (s) ? Fe2+ (aq) + 2e? e. Fe2+ (aq) ? Fe3+ (aq) + e can you explain in detail? I have no clue what is going...
use the half reaction method to balance (SHOW ALL WORK) the following overall redox reaction describing the formation of acid mine drainage emanating from coal mines FeS2(s)+o2(g)+H2o(l)->FE(OH)3(s) +SO4 2-(aq) +H+(aq) balance redox entirely 1)FeS2+o2+h2o->fe2+ +So4 2- +h+ Balance redox entirely 2)2Fe2+ . + 1/2 O2 + 2H+ . ->2Fe3+ +H20 Balance this precipitation reaction Fe3+(aq) +3H2o(l) . -> F(OH)3 (s) +3H+(aq)
Classify the half‑reactions as reduction half‑reactions or oxidation half‑reactions. H2(g)⟶2H+(aq)+2e−H2(g)⟶2H+(aq)+2e− 12O2(g)+2H+(aq)+2e−⟶H2O(g)12O2(g)+2H+(aq)+2e−⟶H2O(g) Cd(s)+2OH−(aq)⟶Cd(OH)2(s)+2e−Cd(s)+2OH−(aq)⟶Cd(OH)2(s)+2e− 2NiO(OH)(s)+2H2O(l)+2e−⟶2Ni(OH)2(s)+2OH−(aq)2NiO(OH)(s)+2H2O(l)+2e−⟶2Ni(OH)2(s)+2OH−(aq) Fe(s)⟶Fe2+(aq)+2e−Fe(s)⟶Fe2+(aq)+2e− oxidation reduction reduction oxidation reduction
Using standard reduction potential in aqueous solutions at 25c Table, which substance is most likely to be oxidised by O2 (g) in acidic aqueous solution? Select one: a. Br2 (l) b. Br- (aq) c. Ni2+ (aq) d. Ag (s) e. Cu2+ (aq) Cathode (Reduction) Half-Reaction Standard Potential E° (volts) Li+(aq) + e- -> Li(s) -3.04 K+(aq) + e- -> K(s) -2.92 Ca2+(aq) + 2e- -> Ca(s) -2.76 Na+(aq) + e- -> Na(s) -2.71 Mg2+(aq) + 2e- -> Mg(s) -2.38 Al3+(aq)...
Part A.
Use the attached flow chart of a qualitative analysis separation
and identification scheme to answer the following question.
What ion is present in solution if the following observations
were seen (enter your answer as the chemical symbol without the
charge)
Addition of HCl: no precipitate
Addition of NH3/NH4Cl: a precipitate
forms
Addition of NaOH and H2O2: no
precipitate
Heat to remove H2O2 and addition of HCl: a
colorless solid is formed
Addition of HCl, Aluminon and NH3: a...
In step1, aqueous ammonia is added to a solution of the three ions. The equilibrium for the ammonia is EQ1: NH3(aq + H2O(l) ßà NH4+(aq) Kb=1.8x10-5 The bismuth(III) ion is precipitated out of the solution as Bi(OH)3. The equilibrium involved is related to the one provided below: EQ2: Bi(OH)3(s) ßà Bi3+(aq) +3OH(aq)- Ksp =3.2x10-40 Manipulate EQ 1 and 2 to solve for the net equation, EQ3: EQ3 (net): 3H2O+ Bi3+(aq) +3NH3(aq) ßàBi(OH)-(s) +3NH4+(aq) Write the mass law expression for the...