An experiment is performed to standardize a methyl alcohol solution by titration with potassium permanganate according to the unbalanced reaction below:

CH3OH(aq) + KMnO4(aq) ==> MnO2(s) + HCO2H

If 100 ml of aqueous solution with methanol is titrated by 38.40 ml of 0.0492M potassium permanganate solution, what is the concentration of methanol in g/100ml of solution?

answer

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Jean KeelingLv2

3 Aug 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Join us on Discord

Chemistry Study Group

Join now

Related questions

Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H2O2, can be titrated against a solution of potassium permanganate, KMnO4. The following equation represents the reaction:

2KMnO4(aq)+H2O2(aq)+3H2SO4(aq)â3O2(g)+2MnSO4(aq)+K2SO4(aq)+4H2O(l)

A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMnO4. What mass of H2O2 was dissolved if the titration required 20.8 mL of the KMnO4 solution?

4) (6 points) A 0.1278 g sample of primary standard Na2C2O4 is diluted to 100.00 mL with water and made slightly acidic before titration with a potassium permanganate solution of unknown concentration. The titration required exactly 33.31 mL of the potassium permanganate (KMnO4) solution.

a. Write and balance the Redox reaction in acidic solution.

b. Identify the oxidizing agent and the reducing agent on the left side of the reaction.

c. Calculate ÎEÂº=EÂºOx â EÂºRed . Is the reaction thermodynamically favored?

d. Calculate the equilibrium constant of the reaction.

e. Calculate the concentration of permanganate solution. MnO4- + H2C2O4 Mn2+ + CO2 Na2C2O4: 133.999 g/mol EÂ° = 0.49 V for 2CO2(g) + 2H+(aq) + 2eâ â H2C2O4(aq)

yellowmole859

2KMnO4(aq)+H2O2(aq)+3H2SO4(aq)âO2(g)+2MnSO4(aq)+K2SO4(aq)+4H2O(l)

A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMnO4. What mass of H2O2 was dissolved if the titration required 17.3 mL of the KMnO4 solution?

Express your answer with the appropriate units.