Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Balance the reaction below: Use the lowest possible positive integers as coefficients H2C204-2H20 + NaOH H20 + Na,C204

Balance the reaction below: Use the lowest possible positive integers as coefficients H2C204-2H20 + NaOH H20 + Na,C204

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter15: Solutions Of Acids And Bases
Section: Chapter Questions
Problem 15.130QE: A solution is made by dissolving 15.0 g sodium hydroxide in approximately 450 mL water. The solution...
See similar textbooks
icon
Related questions
Question
Balance the reaction below: Use the lowest possible positive integers as coefficients H2C204-2H20 + NaOH H20 + Na2C204 What is the molarity of the titrant? M Note: it requires 3 moles of hydroxide to titrate 1 mole of citric acid Calculate the molarity of citric acid in both of the samples? Band X sample. M Brand Y sample M
Transcribed Image Text:Balance the reaction below: Use the lowest possible positive integers as coefficients H2C204-2H20 + NaOH H20 + Na2C204 What is the molarity of the titrant? M Note: it requires 3 moles of hydroxide to titrate 1 mole of citric acid Calculate the molarity of citric acid in both of the samples? Band X sample. M Brand Y sample M
A group of Chem 16.1 students determined the titratable acidity of two brands of tetrapack juice. Titratable acidity is a measure of the total acid concentration in a food sample. Titratable acidity in fruit juices is commonly expressed in terms of milligrams (mg) of hydrous citric acid (H3CitH20, MM: 210.14 g/mol) per ml solution. Initially, they have prepared the sodium hydroxide solution and standardized it with oxalic acid dihydrate (H2C204•2H2O; MM:126.02 g/mol; 99.5% purity) up to the faint pink endpoint of phenolphthalein. The volumes of the duplicate trial of the standardization were summarized in the table. In the sample analysis, 5.00mL each of tetra pack juice was diluted with 50.0 mL of distilled water and titrated up to an endpoint of 8.2 using a pH meter. Consider the tables below and answer the following questions. Table 1. Standardization of the NaOH titrant grams of primary standard Volume NaOH used (mL) 0.2490 39.4 0.2510 39.5 Table 2. Titration of the samples with the standardized titrant. Volume Readout of Burette (mL, NaOH) Sample Initial Final Brand X 0.00 1.90 Brand Y 2.10 3.60
Transcribed Image Text:A group of Chem 16.1 students determined the titratable acidity of two brands of tetrapack juice. Titratable acidity is a measure of the total acid concentration in a food sample. Titratable acidity in fruit juices is commonly expressed in terms of milligrams (mg) of hydrous citric acid (H3CitH20, MM: 210.14 g/mol) per ml solution. Initially, they have prepared the sodium hydroxide solution and standardized it with oxalic acid dihydrate (H2C204•2H2O; MM:126.02 g/mol; 99.5% purity) up to the faint pink endpoint of phenolphthalein. The volumes of the duplicate trial of the standardization were summarized in the table. In the sample analysis, 5.00mL each of tetra pack juice was diluted with 50.0 mL of distilled water and titrated up to an endpoint of 8.2 using a pH meter. Consider the tables below and answer the following questions. Table 1. Standardization of the NaOH titrant grams of primary standard Volume NaOH used (mL) 0.2490 39.4 0.2510 39.5 Table 2. Titration of the samples with the standardized titrant. Volume Readout of Burette (mL, NaOH) Sample Initial Final Brand X 0.00 1.90 Brand Y 2.10 3.60
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Electrochemical Cells
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: Principles and Practice
Chemistry: Principles and Practice
Chemistry
ISBN:
9780534420123
Author:
Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:
Cengage Learning
General Chemistry - Standalone book (MindTap Cour…
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS