If 2.5 x 10-4 moles of Na2S2O3 are present in the starting solution, how many moles of H2O2 are used up by the time the solution turns blue? (See equations 6 and 7) If the total volume of the solution is 100 mL and the reaction requires 600 seconds, what is the value of the average rate of reaction ( -Δ[H2O2]/Dt)?  Show units. H2O2+ 2 I−+ 2 H+→I2+ 2 H2O​             (6) ​2 S2O3 2-+ I2  →2 I−+ S4O62−​               (7)   I don't know if you can help me with this equation at all but any help would be appreciated!!

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...
icon
Related questions
Question

If 2.5 x 10-4 moles of Na2S2O3 are present in the starting solution, how many moles of H2O2 are used up by the time the solution turns blue? (See equations 6 and 7) If the total volume of the solution is 100 mL and the reaction requires 600 seconds, what is the value of the average rate of reaction ( -Δ[H2O2]/Dt)?  Show units.

H2O2+ 2 I+ 2 H+→I2+ 2 H2O​             (6)

​2 S2O3 2-+ I2  →2 I+ S4O62−​               (7)

 

I don't know if you can help me with this equation at all but any help would be appreciated!!

Expert Solution
Analysis

Given : mole of Na2S2O3 = 2.5×10^-4

Volume of solution = 100 ml

Difference in time = 600 sec. 

To find : mole of H2O2 required and average rate of reaction of H2O2

Solution : As we know that, mole of any reactant depends upon the the mole of given reactants. Mole of any substance is the ratio of mass and molar mass of substance. 

Mole =mass /molar mass 

Generally rate of reactants in a reaction is negative which show the rate of consumption of reactants and rare of product is positive which shoe rate of formation of products. 

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Reaction Rates
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY