A volume of 40.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 15.2 mL of 1,50 M H2SO4 was needed? The equation is 2KOH(aq) + H2SO4(aq)→K2S04(aq) + 2H2O(1) Express your answer with the appropriate units. , View Available Hint(s) T(mplates Symbols uado redo resat keyboard shortcuts help molarity = Value Units Submit Previous Answers Request Answer x Incorrect; Try Again; 5 attempts remaining - Part B Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H202, can be titrated against a solution of potassium permanganate, KMN04. The following equation represents the reaction: 2KMNO4(aq) + H2O2(aq) + 3H2S04(aq)→ 302(g) + 2MNS04(aq) + K2SO4(aq) + 4H20(1) A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMN04. What mass of H2O2 was dissolved if the titration required 15.3 mL of the KMN04 solution? Express your answer with the appropriate units. , View Available Hint(s) Te(mplates Symbolš uado redo resat keyboard shortcuts help, mass of H2O2 = Value Units Submit

A volume of 40.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 15.2 mL of 1,50 M H2SO4 was needed? The equation is 2KOH(aq) + H2SO4(aq)→K2S04(aq) + 2H2O(1) Express your answer with the appropriate units. , View Available Hint(s) T(mplates Symbols uado redo resat keyboard shortcuts help molarity = Value Units Submit Previous Answers Request Answer x Incorrect; Try Again; 5 attempts remaining - Part B Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H202, can be titrated against a solution of potassium permanganate, KMN04. The following equation represents the reaction: 2KMNO4(aq) + H2O2(aq) + 3H2S04(aq)→ 302(g) + 2MNS04(aq) + K2SO4(aq) + 4H20(1) A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMN04. What mass of H2O2 was dissolved if the titration required 15.3 mL of the KMN04 solution? Express your answer with the appropriate units. , View Available Hint(s) Te(mplates Symbolš uado redo resat keyboard shortcuts help, mass of H2O2 = Value Units Submit

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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What volume of 0.270 M HNO3 (nitric acid) reacts with 31.0 mL of 0.270 M Na2 CO3 (sodium carbonate) in the following reaction? 2HNO3(aq) + Na2 CO3 (aq) → 2NANO3(aq) + H20(1) + CO2(g) Volume : mL
A 20.0-mL sample of aqueous oxalic acid, H2C204, was titrated with a 0.09113-M solution of potassium permanganate, KMnO4. The following balanced chemical reaction represents this reaction. 2 MnO4 (aq) + 5 H₂2C2O4 (aq) + 6 H(aq) 10 CO2(g) + 2 Mn²+ (aq) + 8 H₂O(1) A volume of 23.24 mL of potassium permanganate (represented by permanganate ion in the balanced equation) was required to reach the endpoint (neutralization). What is the molar concentration of the 20.0 mL sample of oxalic acid?
A 26.00 −mL sample of an unknown HClO4 solution requires titration with 21.12 mL of 0.2200 M NaOH to reach the equivalence point. What is the concentration of the unknown HClO4 solution? The neutralization reaction is: HClO4(aq)+NaOH(aq)→H2O(l)+NaClO4(aq) Express your answer using four significant figures
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Oxalic acid dihydrate (H2C2O4 2H2O) can be used to standardize NaOH solution through acid-base titration. To determine the molarity of an unknown NaOH solution, a student weighed out 0.56 g of solid oxalic acid dihydrate and dissolved the solid in 32.8 mL of DI water. The resulting solution was used in a titration with the unknown NaOH solution (3 drops of phenolphthalein was used as an indicator). The balance chemical equation is given below. If the student used 21.21 mL of the unknown NaOH solution in the titration, what is the molarity of the NaOH solution? Keep the correct number of significant figures. H2C2O4 (aq) + 2NaOH (aq) --> Na2C2O4 (aq) + 2H2O (l)
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