Write a balanced equation for the reaction between the dichromate ion and iron (II) to yield...

Write a balanced equation for the reaction between the dichromate ion and iron (II) to yield iron (III) and chromium (III) in acidic solution.

Expert Solution

Cr2O7^2- (aq) + Fe^2+ (aq) ----------> Fe^3+ (aq) + Cr^3+ (aq)

Oxidation half reaction Reduction half reaction

Fe^2+ (aq) -----> Fe^3+ (aq) Cr2O7^2- (aq) -----> 2Cr^3+ (aq)

Fe^2+ (aq) -----> Fe^3+ (aq) Cr2O7^2- (aq) -----> 2Cr^3+ (aq)+7H2O

Fe^2+ (aq) -----> Fe^3+ (aq) Cr2O7^2- (aq) +14H^+(aq)-----> 2Cr^3+ (aq)+7H2O

Fe^2+ (aq) -----> Fe^3+ (aq) +e^- Cr2O7^2- (aq) +14H^+(aq)+6e^- -----> 2Cr^3+ (aq)+7H2O

6 Fe^2+ (aq) ----->6 Fe^3+ (aq) +6e^-

Cr2O7^2- (aq) +14H^+(aq)+6e^- -----> 2Cr^3+ (aq)+7H2O(l)

-----------------------------------------------------------------------------------------

Cr2O7^2- (aq) + 6Fe^2+ (aq) +14H^+(aq)-------> 6Fe^3+ (aq) + 2Cr^3+ (aq) + 7H2O(l)

queen_honey_blossom answered 2 years ago

The reaction between iron(II) (Fe2+) and dichromate (Cr2O2−7) in the presence of a strong acid (H+)...

The reaction between iron(II) (Fe2+) and dichromate (Cr2O2−7) in the presence of a strong acid (H+) is shown. Cr2O2−7+6Fe2++14H+⟶2Cr3++6Fe3++7H2O Determine the volume, in milliliters, of a 0.270 M solution of Mohr's salt ((NH4)2Fe(SO4)2⋅6H2O) needed to completely react with 0.0800 L of 0.270 M potassium dichromate (K2Cr2O7). volume: mL What volume, in milliliters, of 0.270 M K2Cr2O7 is required to completely react with 0.0800 L of a 0.270 M solution of Mohr's salt?

Re-write the chemical reaction for the equilibrium established between the chromate and dichromate ion. Label the...

Re-write the chemical reaction for the equilibrium established between the chromate and dichromate ion. Label the colors expected for the chromate and dichromate ions. You may refer to the experimental procedure. 2CrO42- (aq) + 2H3O+ (aq) Û Cr2O72- (aq) + 3H2O (l) (chromate-yellow) (dichromate-yellow) A completed data table #1. Change to the Reaction Drops Added Visual Observations Shift in the reaction (to products, reactants, or no change) K2CrO4 solution only The color after the change to the reaction is yellow....

1)Write the complete equation (balanced with states) for the reaction between potassium chloride and lead (II)...

1)Write the complete equation (balanced with states) for the reaction between potassium chloride and lead (II) nitrate? 2) Which precipitate forms in the above mentioned reaction? 3) You mix 16.00 mL of 0.778 M lead (II) nitrate with 18.00 mL of 0.813 M potassium chloride, and collect and dry the precipitate. Calculate the following: a) Moles of lead (II) nitrate used: b)Moles of potassium chloride used: c) Moles of precipitate expected from lead (II) nitrate: d) Moles of precipitate expected...

Write the balanced molecular equation and net ionic equation for the neutralization reaction between hydrochloric acid...

Write the balanced molecular equation and net ionic equation for the neutralization reaction between hydrochloric acid and strontium hydroxide. Include the phase of each species.

the Diels -Alder reaction between Maleic Anhydride and furan ( balanced chemical equation and theoretical yield)...

the Diels -Alder reaction between Maleic Anhydride and furan ( balanced chemical equation and theoretical yield) - 0.20 g of maleic anhydride and 2.5 of diethyl ether - 0.20 ml of furan Can you please write the balanced chemical equation and calculate the theortical yield

Write the reaction between ALUMINUM + IRON (II) CHLORITE If 2.5 g of aluminum reacts with...

Write the reaction between ALUMINUM + IRON (II) CHLORITE If 2.5 g of aluminum reacts with 75 mL of 4.5 M solution of iron (II) chlorite, how much of each is present at the end of the reaction? What is the percent yield if you collected 5.5 g of the solid?

Iron (III) ion and thiocyanate ion exists in equilibrium with iron thiocyanate ion. The reaction, as...

Iron (III) ion and thiocyanate ion exists in equilibrium with iron thiocyanate ion. The reaction, as written, is exothermic. Given that the FeNCS2+ product is a deep red color and the reactants are nearly colorless, which of the following will cause the solution to bedarker in color at equilibrium? Fe3+(aq) + NCS–(aq) ↔ FeNCS2+(aq) Increasing the solution temperature Adding FeNO3 Removing Fe3+ ion by adding NaOH which reacts with Fe3+ ion. Removing NCS– ion by adding AgNO3 with reactacts with...

A voltaic cell is constructed using the reaction of chromium metal and iron(II) ion: &nb

A voltaic cell is constructed using the reaction of chromium metal and iron(II) ion: 2Cr(s) +3Fe2+(aq) ® 2Cr3+(aq) +3Fe(s) What is the correct cell notation for this voltaic cell? Which insoluble compound in each pair should be more soluble in nitric acid than in pure water? a) PbCl2 or PbS b) Ag2CO3 or AgI c) Al(OH)3 or AgCl

A.) Write the equation which describes the reaction between crystal violet and hydroxide ion. B.) A...

A.) Write the equation which describes the reaction between crystal violet and hydroxide ion. B.) A solution is prepared by mixing 25.0 mLs of 4.84*10^-6 M crystal violet solution with 20.0 mLs of 0.10 M NaOH solution and diluted to a final volume of 100.0 mLs. Determine the limiting reagent. C.) After the reaction has gone to completion, calculate the concentration of all species in the reaction. D.) How does the concentration of sodium hydroxide change over the course of...

Consider the reaction between mercury (II) nitrate and sodium bromide. Write the BALANCED MOLECULAR, COMPLETE and...

Consider the reaction between mercury (II) nitrate and sodium bromide. Write the BALANCED MOLECULAR, COMPLETE and NET IONIC EQUATIONS to show the formation of the solid. Molecular: _________________________________________________________ Complete Ionic:________________________________________________________ Net Ionic:_________________________________________________________________

Question