Identify the correct net ionic equation for the reaction K2CO3(aq) + Zn(CIO4)2(aq) → 2KCIO4(aq) + ZnCO3(s) Zn + CO3 → ZnCO3 Kl+(aq) + CIO41-(aq) → KCIO4(aq) O 2k1+(aq) + CO,²-(aq) → K2CO3²-(aq) O zn2+(aq) + Co32-(aq) → ZnCO3(s)
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- Write the net ionic equation for the reaction of iron (III) chloride with sodium carbonate. 2Fe(aq) + 3CO3(aq) ⟶⟶Fe2(CO3)3(s) 2Fe+3(aq) + 3CO3-2(aq) ⟶Fe2(CO3)3(s) Fe+3(aq) + CO3-2(aq) ⟶⟶ Fe2(CO3)3(s) 2Fe+3(aq) + CO3-2(aq) ⟶⟶ Fe2(CO3)3(s) Fe+3(aq) + 3CO3-2(aq) ⟶⟶Fe2(CO3)3(s)The following reaction occurs in basic solution: _ H2O(aq) + _ MnO4–(aq) + _ ClO–(aq) → _ MnO2(s) + _ ClO4–(aq) + _ OH–(aq) When the equation is properly balanced, what is the sum of the lowest whole-number coefficients? a. 9 b. 10 c. 20 d. 12 e. 6Balance the following reactions in acid or base as specified. Fe²⁺ + Cr₂O₇² → Fe³⁺ + Cr³⁺ (in acidic solution) CN⁺ + Fe³⁺ → CNO⁻ + Fe²⁺ (in basic solution) Cr(OH)₂ + Br₂ → CrO₄²⁺ + Br⁻ (in basic solution)
- A 25.00cm3 of potassium dichromate(K2Cr2O7) solution are added to an acidified aqueous solution of potassium iodide(present in excess). The Iodine was then liberated according to the equation K2Cr2O7(aq) + 14H+(aq) + KI(aq) → K+(aq) + Cr3+(aq) + H2O(l) + I2(aq) required 19.63cm3 of a 0.1478MNa2S2O3 for complete reaction. The equation for the reaction of between Na2S2O3 and I2 is I2 +(aq) + Na2S2SO3(aq) → Na2S4O6(aq) + NaI(aq) Calculate the concentration of potassium dichromate (only 4 decimal places). ________Mol/LThe blood alcohol (C2H5OH) level can be determined by titrating a sample of blood plasma with an acidic potassium dichromate solution, resulting in the production of Cr3+ (aq) and carbon dioxide. The reaction can be monitored because the dichromate ion (Cr2O72-) is orange in solution, and the Cr3+ ion is green. The balanced equation is 16H+(aq) + 2Cr2O72-(aq) + C2H5OH(aq) -> 4Cr3+(aq) + 2CO2(g) + 11H20. If the blood alcohol limit is 0.08%, what concentration in M of Cr2O72-(aq) would you use , such that titrant volume will be 2.00 mL for a 5.00 mL sample that would be over the limit ? Specify what change you will monitor at equivalence point.Oxalic acid (H2C2O4) is present in many plants and vegetables. Balance the following equation in acid solution: MnO4- + C2O4- → Mn2+ + CO2
- Consider the following reactions. reaction (1): Mn2+(aq) + SO42−(aq) → MnO4−(aq) + H2SO3(aq) in acidic solutionreaction (2): Ni2+(aq) + Cl−(aq) → Ni(s) + ClO−(aq) in basic solutionreaction (3): Mo(s) + N2O4(g) → MoO2(s) + HNO2(aq) in acidic solutionreaction (4): MnO4−(aq) + Cl−(aq) → MnO2(s) + ClO3−(aq) in basic solution Balance each equation under the specified conditions. (Include states-of-matter under the given conditions in your answer.)reaction (1): Mn2+(aq) + SO42−(aq) → MnO4−(aq) + H2SO3(aq) in acidic solution chemPad Help reaction (2): Ni2+(aq) + Cl−(aq) → Ni(s) + ClO−(aq) in basic solution chemPad Help reaction (3): Mo(s) + N2O4(g) → MoO2(s) + HNO2(aq) in acidic solution chemPad Help reaction (4): MnO4−(aq) + Cl−(aq) → MnO2(s) + ClO3−(aq) in basic solution chemPad HelpPotassium permanganate solutions used in oxidation-reduction titrations are often standardized against sodium oxalate, Na₂C₂O₄, used as a primary standard. The reaction involved is 5C₂O₄²⁻(aq) + 2MnO₄⁻(aq) + 16 H⁺(aq) → 2Mn²⁺(aq) + 8H₂O(l) + 10CO₂(g) A 0.2452 g sample of sodium oxalate is dissolved in 100 mL of acid solution, and the permanganate solution is added slowly from a buret. The endpoint is reached when 15.85 mL of the permanganate solution has been added. The molar mass of sodium oxalate is 134.00 g/mol. Calculate [MnO₄⁻], the molar concentration of the permanganate solution.Which of the following reactions will occur spontaneously as written? 2Cr3+ (aq) + 3Sn2+ (aq) → 3Sn4+ (aq) + 2Cr (s) Sn4+ (aq) + Fe2+ (s) → Sn2+ (aq) + Fe (s) 3Fe2+ (aq) + Cr3+ (aq) → Cr (s) + 3Fe3+ (aq) 2Cr (s) + 3Fe2+ (s) → 3Fe (s) + 2Cr3+ (aq
- The amount of I3- (aq) in a solution can be determined by titration with a solution containing a known concentration of S2O32- (aq) (thiosulfate ion). The determination is based on the net ionic equation 2S2O32- (aq) + I3- (aq) yields to S4O62- (aq) + 3I- (aq) Given that it requires 34.2 mL of 0.500 M Na2S2O3 (aq) to titrate a 20.0 mL sample of I3- (aq), calculate the molarity of I3- (aq) in the solution.Identify the best oxidizing agent Zn2+ + 2e- ↔ Zn Eo = -0.76 V Cu2+ + 2e- ↔ Cu Eo = +0.34 V Cr2O72- + 14H+ + 6e- ↔ 2Cr3+ + 7H2O Eo = +1.33 V a. Cu2+ b. Cr3+ c. Zn 2+ d. Cr2O72-Balance the following in acidic solution:(a) H2 O2 + Sn2+ ⟶ H2 O + Sn4+(b) PbO2 + Hg ⟶ Hg22+ + Pb2+(c) Al + Cr2 O72− ⟶ Al3+ + Cr3+