Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Write the chemical equation involved silver nitrate test. And explain in your own words, the importance of silver nitrate test

Write the chemical equation involved silver nitrate test. And explain in your own words, the importance of silver nitrate test

Chemistry
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...
See similar textbooks
icon
Related questions
Question

Write the chemical equation involved silver nitrate test. And explain in your own words, the importance of silver nitrate test

Expt. 8: VOLUMETRIC DETERMINATION OF CALCIUM AS OXALATE Sample preparation: the sample is a solution containing a known weight of CaCO, dissolved in 6N or 3N HCI and diluted to a definite volume. Aliquot portions are given as unknown samples. Procedure for Analysis: Dilute the unknown sample to 250 ml with distilled water (DW) and then 10.00 ml aliquot is taken for analysis. 1. Dilute the 10.00 ml aliquot to about 200 ml with DW. 2. Heat the solution to 60° – 80°C and then add 4-5 drops of methyl orange indicator. 3. Dissolve 1-1.5 grams ammonium oxalate, (NH,)½C204, in 50 ml of DW and then add to the sample solution. 4. Bring the solution to a boil and then add 6N NH,OH SLOWLY from a pipet until the indicator shows a change of color. Stir vigorously during the addition. 5. Allow the solution to stand for at least 30 minutes, but NO longer than 1 hour before filtration 6. Filter, first by decantation through a special type of filter paper. 7. Wash with 10 ml portions of COLD (chilled) DW, adding each portion to the precipitation beaker (1 liter) and pouring from this to the filtering medium. Drain each portion of wash before adding the next. 8. After the 4th washing, test a portion of the filtrate for chloride ions using a drop of HNO, and a drop of AGNO3. Continue washing until only a faint cloudiness (or much better = CLEAR solution) is obtained. Discard filtrate and washings. 9. Make a hole in the apex of the filter paper and wash the precipitate with a stream of HOT DW into the precipitation beaker (1 liter). 10. Pour a mixture of 9.0 ml concentrated H;SO, and 150 ml of DW over the filter paper. Wash thoroughly with HOT DW. 11. Heat the solution to 80° – 90°C to dissolve the precipitate. 12. Titrate AT ONCE with Std. KMNO, solution until endpoint is reached.
Transcribed Image Text:Expt. 8: VOLUMETRIC DETERMINATION OF CALCIUM AS OXALATE Sample preparation: the sample is a solution containing a known weight of CaCO, dissolved in 6N or 3N HCI and diluted to a definite volume. Aliquot portions are given as unknown samples. Procedure for Analysis: Dilute the unknown sample to 250 ml with distilled water (DW) and then 10.00 ml aliquot is taken for analysis. 1. Dilute the 10.00 ml aliquot to about 200 ml with DW. 2. Heat the solution to 60° – 80°C and then add 4-5 drops of methyl orange indicator. 3. Dissolve 1-1.5 grams ammonium oxalate, (NH,)½C204, in 50 ml of DW and then add to the sample solution. 4. Bring the solution to a boil and then add 6N NH,OH SLOWLY from a pipet until the indicator shows a change of color. Stir vigorously during the addition. 5. Allow the solution to stand for at least 30 minutes, but NO longer than 1 hour before filtration 6. Filter, first by decantation through a special type of filter paper. 7. Wash with 10 ml portions of COLD (chilled) DW, adding each portion to the precipitation beaker (1 liter) and pouring from this to the filtering medium. Drain each portion of wash before adding the next. 8. After the 4th washing, test a portion of the filtrate for chloride ions using a drop of HNO, and a drop of AGNO3. Continue washing until only a faint cloudiness (or much better = CLEAR solution) is obtained. Discard filtrate and washings. 9. Make a hole in the apex of the filter paper and wash the precipitate with a stream of HOT DW into the precipitation beaker (1 liter). 10. Pour a mixture of 9.0 ml concentrated H;SO, and 150 ml of DW over the filter paper. Wash thoroughly with HOT DW. 11. Heat the solution to 80° – 90°C to dissolve the precipitate. 12. Titrate AT ONCE with Std. KMNO, solution until endpoint is reached.
STOICHIOMETRY: 1. Net meq of the titrant used: (ml KMN0, x N KMN0,) – (ml Ferous soln x N Ferous soln) 2. # of grams Ca (in the aliquot): grams of Ca = meq KMN04 x mewt Ca 3. # of grams of Ca (in the sample given by the Lab Instructor to Students): 1 grams of Ca (given sample) = (net) meq KMN0, x mewt Ca x 250 ml x 10 ml OR grams Ca (given sample) = grams Ca in aliquot x 250 ml 10 ml OVERALL EQUATION: (N x ml)kMn0, X (AW of Ca 2000 x 250 ml grams Ca (Given Sample) =- 10 ml теq кMп0, х тewt Ca x 250 ml grams Ca (Given Sample) : 10 ml
Transcribed Image Text:STOICHIOMETRY: 1. Net meq of the titrant used: (ml KMN0, x N KMN0,) – (ml Ferous soln x N Ferous soln) 2. # of grams Ca (in the aliquot): grams of Ca = meq KMN04 x mewt Ca 3. # of grams of Ca (in the sample given by the Lab Instructor to Students): 1 grams of Ca (given sample) = (net) meq KMN0, x mewt Ca x 250 ml x 10 ml OR grams Ca (given sample) = grams Ca in aliquot x 250 ml 10 ml OVERALL EQUATION: (N x ml)kMn0, X (AW of Ca 2000 x 250 ml grams Ca (Given Sample) =- 10 ml теq кMп0, х тewt Ca x 250 ml grams Ca (Given Sample) : 10 ml
Expert Solution
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Matter
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
SEE MORE TEXTBOOKS