Titration of 0.1756 g of primary standard Na_2C_2O_4 required 32.04 mL of a KMnO_4 solution....
Question:
Titration of {eq}\rm 0.1756\ g {/eq} of primary standard {eq}\rm Na_2C_2O_4 {/eq} required 32.04 mL of a {eq}\rm KMnO_4 {/eq} solution. Calculate the concentration of {eq}\rm KMnO_4 {/eq}.
Primary Standards:
The primary standards illustrate the class of substances which are "pure and stable." They played a vital role in preparing "secondary standard solutions." They have stable concentration so can be used to determine "concentration in titration."
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerGiven data:
- The mass of {eq}\rm N{a_2}{C_2}{O_4} {/eq} is 0.1756 g.
- The volume of {eq}\rm KMn{O_4} {/eq} required is 32.04 mL.
The titration...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:

from
Chapter 8 / Lesson 11Learn about standard solutions in chemistry. Understand the definition of standard solutions, what standard solution is used for, and explore how to prepare standard solutions.
Related to this Question
- Determine concentration of the KMnO_4 solution for use as a secondary standard
- If 36.00 mL of KMnO_4 are required to oxidize 25.00 mL of 0.02932 M NaC_2O_4 solution, what is the concentration of KMnO_4 ?
- If 36.00 mL of KMnO_4 solution are required to oxidize 25.00 mL of 0.02932 M Na_2C_2O_4 solution, what is the concentration of KMnO_4?
- If 29.11 mL of KMnO_4 solution is required to oxidize 25.00 mL of 0.03105 M Na_2C_2O_4 solution, what is the concentration of KMnO_4?
- A volume of 32.2 mL of a 1.16 M KMnO4 solution is mixed with 17.7 mL of a 0.692 M KMnO4 solution. Calculate the concentration of the final solution.
- A volume of 30.2 mL of a 3.16 M KMnO4 solution is mixed with 13.7 mL of a 0.292 M KMnO4 solution. Calculate the concentration of the final solution.
- What is the molar concentration of the standard KMnO_4 solution?
- The mass concentration of KMnO4 in a solution is 2 %. Calculate the mass of KMnO4 in 150 g of this solution.
- a) A 0.3129-g sample of primary-standard-grade Na2C2O4 was dissolved in H2SO4 and titrated with 31.45 mL of dilute KMnO4. 2MnO4- + 5C2O4^2- + 16H+ = 2Mn2+ + 10CO2(g) + 8H2O Calculate the molar concentration of the solution. b) The iron in a 0.6621-g or
- How to calculate the molar concentration of KMnO_4 solution?
- A 35.2 mL, 1.66 M KMnO_4 solution is mixed with 16.7 mL of 0.892 M KMnO_4 solution. Calculate the concentration of the final solution (assume the volumes are additive).
- A solution is to be standardized by titrating KMnO4 against As2O3. A 0.1022-gram sample of As2O3 requires 23.40 mL of KMnO4 for its titration. What is the molarity of the KMnO4?
- If the KMnO_4 is in 30.30 mL of solution, what is the molarity (M) of the KMnO4 solution?
- What volume of a 0.759 M KMnO4 solution is needed to prepare 250 mL of a 0.15 M KMnO4 solution?
- Calculate the concentrations of KMnO_4 and H_2C_20_4 after 5.00 mL 0.0200 M KMnO_4 is mixed with 10.00 mL 0.500 M H_2C_20_4. (Hint: use the dilution equation.)
- If 26.23 mL of potassium permanganate solution is required to titrate 1.041 g of ferrous ammonium sulfate hexahydrate, and calculate the Molarity of the KMnO_4 solution.
- If 27, 31 mL of potassium permanganate solution is required to titrate 1.0521 g of ferrous ammonium sulfate hexahydrate, FeSO_4(NH_4)_2SO_46H_2O_2 calculate the molarity of the KMnO_4 solution. If a
- Calculate the molarity of a solution prepared by dissolving 1.50 g of KMnO4 in 250.00 mL of solution.
- If 26.223 mL of potassium permanganate solution is required to titrate 1.041 g of ferrous ammonium sulfate hexahydrate, FeSO4(NH4)2So46H2O, calculate the molarity of the KMnO4 solution. MnO4- + 8H+ +
- In a measurement 0.1 M KMnO_4 is used. Determine the volume of solution required to react with 0.158 M Na_2S_2O_3 required.
- 19.3 mL of a solution of KMnO_4 is required to completely oxidize 1.89 g of Mo_2O_3 to MoO_4^{-2}. What is the molarity of the KMnO_4 solution? 3MnO_4^- + 5Mo^{+3} + 8H_2O \to 3Mn^{+2} + 5MoO_4^{-2} +16H^+
- Calculate the concentration of a 1.00 mL H_2O_2 solution if 17.9 mL of 0.02068 M KMnO_4 is needed to titrate to the equivalence point?
- You standardize a solution of KMnO_4 by titration with a solution of oxalic acid. You weigh out 1.378 g H_2C_2O_4 \cdot 2H_2O and dissolve it with deionized water in a 25.00 mL volumetric flask. What is the molarity of the KMnO_4 solution if it requires 1
- If KMnO4 is in 30.30 mL of solution, what is the molarity (M) of the KMnO4 solution? How many moles of KMnO4 are required to reach the moles of Na2C2O4 in the last problem?
- What is the molarity of KMnO_4 in a solution of 0.0908 g of KMnO_4 in 0.500 L of the solution?
- What is the molarity of KMnO_4 in a solution of 0.0908 g of KMnO_4 in 0.500 L of solution?
- Determine the concentration of H_2O_2 \text{ using } KMnO_4. Titrant: Potassium Permanganate Solution
- If 8.33 mL of a 1.972 M KMnO4 solution is diluted to a final volume of 25.0 mL, what is the resulting molarity?
- If 7.15 mL of a 1.913 M KMnO_4 solution are diluted to a final volume of 25.0 mL, what is the resulting molarity?
- Suppose 31.25 mL of a 0.100 M Na2C2O4 solution was titrated with 17.38 mL of KMnO4. a. What is the normality of the Na2C2O4? b. What is the normality and the molarity of the KMnO4?
- What is the molarity of KMnO_4 solution if 40.41 mL is required to titrate 0.2538 g of Na_2C_2O_4? a. Calculate the number of equivalents of Na_2C_2O_4. B. Calculate the number of equivalents of KMnO_
- If 1.25 g of Na2C2O4 was titrated with KMnO4, how many mL of 0.2145 M KMnO4 would be needed?
- What is the molarity of KMnO4 in a solution that contains 0.0898 g of KMnO4 in 0.500 L of solution?
- A stock solution of potassium permanganate (KMnO4) was prepared by dissolving 26.4 g KMnO4 with H2O in a 100.00 mL volumetric flask and diluting to the calibration mark. Determine the molarity of the solution.
- What volume of 0.1 N KMnO4 would be required to titrate 0.56 g of K2(Cu(C2O4)2) 2H2O?
- What volume of 0.1 M KMnO_4 would be required to titrate 0.56 g of K_2[Cu(C_2O_4)_2] cdot 2H_2O?
- A 16.42 mL volume of .1327 M KMnO_4 solution is needed to titrate to completion a 25.00 mL solution of a FeSO_4. What is the molarity of the FeSO_4 solution? 5Fe^{2+} + MnO_4^- + 8H^+ to Mn^{2+} + 5Fe^{3+} + 4H_2O
- I have 50mL of 0.2M of potassium permanganate solution. What is the Molarity of KMnO_4?
- What volume of 0.100 M KMnO_4 would be required to titrate 0.36 g of K_2(Cu(C_2O_4)_2) cdot 2H_2O?
- Exactly 20.0 mL of KMnO_{4} are equivalent to 45.0 mL of 0.125 Moxalic acid. What is the molarity of the permanganate solution?
- 8H+(aq) + 5Fe2+(aq) + MnO4 -->5Fe3+(aq) + Mn2+(aq) + 4H2O(l) If 1.25 g of Na2C2O4 was titrated with KMnO4, how many milliliters of 0.2145 M KMnO4 would be needed?
- 1. Titration of 0.2323 g of pure Na_2C_2O_4 (134.00) required 38.71 ml of a potassium permanganate solution;
- What is the molarity of KMnO_4 solution that contains 36.0 grams of KMnO_4 in 0.394 L of solution?
- A 20.0 mL sample of H2C2O4 was titrated with 20.0 mL of 0.100 M KMnO4. What is the molarity of H2C2O4? 2KMnO4 + 5H2C2O4 + 6HCl = 2MnCl2 + 2KCl + 8H2O + 10CO2 (A) 0.0500 M (B) 0.100 M (C) 0.200 M (D) 0.250 M (E) 0.400 M
- How would you prepare a 500 mL of 0.020 M KMnO_4 solution?
- 1. If 0.4586 g of sodium oxalate, Ca2C2O4, requires 33.67 mL of a KMnO4 solution to reach the end point, what is the molarity of the KMnO4 solution? 2. Titration of an oxalate sample gave the followin
- How many grams of KMnO4 are required to prepare 1 litre of a solution of 1.5 M KMnO4?
- If 34.72 mL of a solution of potassium permanganate (KMnO4) is needed to titrate a solution containing 0.450 g oxalic acid (H2C2O4), what is the concentration of the potassium permanganate solution? 5 H2C2O4 (aq) + MnO4^- (aq) + 6H^+ (aq) \rightarrow 10
- Calculate the concentration of a solution prepared by adding 15.00 mL of 2.07 x 10 -3 M KMnO4 from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water.
- What volume of 0.370 M KMnO4 would be required to titrate 0.34 grams of K2(Cu(C2O4)2) 2H2O?
- An aqueous solution is made from 0.798 g of potassium permanganate, KMnO_4. If the volume of the solution is 50.0 mL, what is the molarity of KMnO_4 in the solution?
- An aqueous solution is made from 0.798 g of potassium permanganate, KMnO_4. If the volume of a solution is 50.0 mL, what is the molarity of KMnO_4 in the solution? (Remember: M stands for a molar.) (a) 9.90 M (b) 0.05 M (c) 16.0 M (d) 0.101 M (e) 5.0
- What mass of potassium permanganate (FM = 158.032) is needed to prepare 250 mL of 0.0500 KMNO_4 solution?
- What mass of potassium permanganate (FM = 158.032) is needed to prepare 250.00 mL of 0.0500 M KMnO_4 solution?
- How many milliliters of 0.250 M KMnO4 are needed to deliver 0.00450 moles of KMnO4 in a titration?
- Calculate the molarity of H_2O_2 if 25ml of H_2O_2 required 12 ml of 0.1M KMNO_4?
- If 10.0 mL of an H2O2(aq) solution requires 22.55 mL of a 0.0153 M KMnO4 to reach the endpoint of the titration, what is the molarity of the H2O2 solution?
- A solution of potassium permanganate (KMnO_4) was standardized by titrating with 0.1908 g of Na_2C_2O_4 dissolved in 50 cm^3 of acidified water. The endpoint was reached after 24.50 cm^3 of the solution had been added. Calculate the molar concentration of
- If you require 11.8 ml of 0.0448 KMnO_4 solution to titrate the Na_2C_2O_4 solution, what is the mass of Na_2C_2O_4 present in the solution?
- If 18.0 mL of 0.210 M oxalic acid dihydrate reacted with 14.6 mL of KMnO_4, what is the molarity of the KMnO_4?
- An aqueous solution is made from 0.798 g of potassium permanganate, KMnO4. If the volume of a solution is 50.0 mL, what is the molarity of KMnO4 in the solution? (Remember: M stands for molar.) a) 9.90 M b) 0.05 M c) 16.0 M d) 0.101 M e) 5.05 x 10-3 M
- Calculate the concentration of a solution prepared by adding 15.00 mL of 1.92 times 10^{-3} M KMnO_4 from a burette into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation ma
- If 0.7258g of sodium oxalate, Na_2C_2O_4, requiresof a 40.14 mL KMnO_4 solution to reach the end point, what is the molarity of the KMnO_4 solution?
- 1. What is the molarity of a solution made by dissolving 12.2 g KMnO_4 in a final volume of 2.50 L? 2. What mass of potassium permanganate is present in 84.3 milliliters of the solution above (question 1)? 3. What volume of the solution in question 1 c
- What volume of 0.0100 M KMnO4 solution is required to oxidize 42.5 mL of 0.0190 M Na2SO3 in sulfuric acid solution?
- The stock solution of KMnO4 has a concentration of 2.6E-4 M. The pipette has a volume of 10.0 mL. How many moles of KMnO4 are delivered to the solution?
- A solution of permanganate is standardized by titration with oxalic acid (H2C2O4). It required 28.97 mL of the permanganate solution to react completely with 0.1058 g of oxalic acid.
- What is the molarity of an unknown H_2C_2O_4 solution if 10.00 mL of the H_2C_2O_4 solution required 15.85 mL of 0.0198 M KMnO_4 solution to obtain a stoichiometric endpoint? a. 0.0584 M\\b. 0.01 26 M\\ c. 0.0197 M\\d. 0.0314 M \\ e. 0.0785 M
- What is the molarity of an unknown H_2C_2O_4 solution if 5.00 mL of the H_2C_2O_4 solution required 33.85 mL of 0.0255 M KMnO_4 solution to obtain a stoichiometric endpoint? (a) 0.0584 M (b) 0.0126 M (c) 0.432 M (d) 0.0314 M (e) 0.0785 M.
- How many grams of KMnO4 are needed to prepare a 500 mL solution of 0.004N?
- What is the molarity of a solution made by dissolving 12.2 g KMnO_4 in a final volume of 2.50 L?
- 1. If 36 mL of KMnO4 solution is required to oxidize 25 mL of 0.02932 M NaC2O4 solution, what is the concentration of the solution? 2. A certain brand of iron supplement contains FeSO4 7H2O with misce
- What is the molarity of a hydrogen peroxide (H2O2) solution if 20.0 mL of the solution requires 28.16 mL of 0.500 M KMnO4 for complete reaction?
- The titration required 55.0 mL of 0.100 mol/L KMnO_4 (aq) to react completely with the Fe^{2-} (aq). The mass of iron in the ore sample was (a) 0.123 g (b) 0.307 g (c) 0.768 g (d) 1.54 g
- A 25.5 mL volume of a 0.01140 M KMnO_4 solution was used to reach the equivalence point in the titration of 0.1055 g of an unknown sample containing the oxalate ion. Determine the mass (in grams) of C_2O_4^{2-} that would be present in a 100 g sample.
- Potassium permanganate (KMnO_4) solutions are used for the determination of iron in samples of unknown concentration. As a laboratory assistant, you are supposed to prepare 400 mL of a 0.400 M KMnO_4 solution. What mass of KMnO_4, in grams, do you need?
- What is the concentration of KMnO_4 when you mix 2.00 mL of 0.160 M KMnO_4 with 10.00 mL of 0.250 M oxalic acid? Assuming that it took 120 s to observe the colour change in the reaction, what is the rate of there action?
- How many moles of KMnO4 are in 18.2 mL of a 0.02034 M KMnO4 solution?
- Suppose that 35.55 mL of permanganate solution is required to titrate 1.2055 grams of iron(II) ammonium sulfate hexahydrate. Calculate the concentration of the permanganate solution.
- How many milliliters of a 0.200 M HI solution are needed to reduce 21.5 mL of a 0.365 M KMnO_4 solution according to the following equation: 10 HI + 2 KMnO_4 + 3H_2SO_4 to 5 I_2 + 2MnSO_4 + K_2SO_4 +
- In one experiment, 21.80 mL of the 0.1101 M MnO4^- solution is required to react completely with 30.00 mL of the hydrogen peroxide solution. Calculate the concentration of the hydrogen peroxide solution.
- The mass of potassium permanganate is 0.948 g. There is 300 mL of 0.02 M solution. Show the calculation used to estimate the mass of sodium oxalate needed to do the first titration. Include the balanced chemical equation.
- If 27.0 mL of 0.0200 M KMnO_4 were required to titrate a 0.425 g sample of K_3(Fe(C_2O_4)_3) . 3H_2O, what is the % purity of the complex?
- Find the molarity of a solution of potassium permanganate from the following information: Mass of potassium permanganate needed to prepare the solution is 0.948 g. Mass of pure Na_2C_2O_4 dispensed is 0.1659. Volume of solution dispensed is 24.79 mL.
- What is the molarity of oxalic acid in a solution if 34.56mL if 0.0123M potassium permanganate is needed to titrate 25.00mL of the unknown solution?
- The concentration of a solution sodium iodide ion will be determined by titrating 90 mL of it using potassium permanganate. After 60.0 mL of 0.250 M KMnO_4 is added the purple color of potassium permanganate persists indicating the end of the titration. W
- Calculate the grams of solute in 94.8 mL of 4.63 M KMnO4.
- A 0.750 g sample of an unknown solid is dissolved in 100 mL of water and acidified with 25 mL of 3 M H_2SO_4 then titrated with a 0.0200 M KMnO_4 solution. If the unknown solid requires 12.5 mL of the KMnO_4 solution to reach the endpoint, what is the per
- How to prepare a 0.010 M KMnO4 solution from a 0.050 M KMn solution?
- What mass in grams of solute is needed to prepare 325 mL of 5.30 x 10-2 M KMnO4 solution?
- A 50.00-mL sample of solution containing Fe2+ ions is titrated with a 0.0216 M KMnO4 solution. It required 20.62 mL of KMnO4 solution to oxidize all the Fe2+ ions to Fe3+ ions by the reaction. What was the concentration of Fe2+ ions in the sample solution
- 5.0 mL of the solution prepared above are then mixed with 5.0 mL of 6.0 times 10^{-4} M potassium permanganate to create an unknown solution. Calculate the theoretical molarity of this unknown solution.
- What volume of 0.233 M KMnO4 would be required to oxidize 25.0 mL of 0.150 M FeSO4 in an acidic solution?
- Determine the volume of a 0.550 M of KMnO_4 solution required to completely react with 2.70 g of Zn.
- Determine the volume of a 0.550 M KMnO4 solution required to completely react with 2.55 g of Zn.
- Determine the volume of a 0.550 M KMnO_4 solution required to completely react with 2.80 g of Zn.
- You standardize a solution of KMnO_4 by titration with a solution of oxalic acid. You weigh out 1.378 g H_2C_2O_4 \cdot 2H_2O and dissolve it with deionized water in a 25.00 mL volumetric flask. What is the molarity of this oxalic acid solution?
- Calculate the mass of solid potassium permanganate required in the preparation of approximately 300 mL of a 0.02 M solution.
- Calculate the molality of KMnO_4 solution needed to titrate 50.00 mL of a saturated solution of this oxalate salt. It should take 7.50 mL of KMnO_4 solution to titrate the saturated oxalate solution.
- What volume of 0.561 M KMnO_4 (aq) is necessary to exactly react with 6.54 g KI in the following reaction? 2 KMnO_4 + 10 KI + 8 H2SO_4 \rightarrow 6 K2SO_4 + 2 MnSO_4 + 5 I_2 + 8 H_2O A. 0.0140 mL B. 1.20 mL C. 14.0 mL D. 163.2 mL E. impossible to