Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Gravimetric determination of chloride in a soluble sample lab report

21/04/2021 Client: muhammad11 Deadline: 2 Day

I need help writing a lab report. I have attached my notes ( the steps and other notes) and please rewrite it do not copy and paste because it needs to paraphrase. I have also attached the lab manual along with grading rubric. I have included my previous lab report ( named Lab ther), it just an example of how I want the report looks like .3. Gravimetric Determination of Iron as Fe2O3 3. Quantitative Chemical Analysis Gravimetric Determination of Iron as Fe2O315 A sample containing iron can be analyzed by precipitation of the hydrous oxide from basic solution, followed by ignition to produce Fe2O3: Fe3+ + (2 + x)H2O Base FeOOH . xH2O(s) + 3H+ Hydrous ferric oxide Green Profile See Section 0 900ºC FeOOH . xH2O Fe2O3(s) The gelatinous hydrous oxide can occlude impurities. Therefore, the initial precipitate is dissolved in acid and reprecipitated. Because the concentration of impurities is lower during the second precipitation, occlusion is diminished. Solid unknowns can be prepared from reagent ferrous ammonium sulfate or purchased from Thorn Smith.2 Procedure 1. Bring three porcelain crucibles and caps to constant mass by heating to redness for 15 min over a burner (Figure 1). Cool for 30 min in a desiccator and weigh each crucible. Repeat this procedure until successive weighings agree within 0.3 mg. Be sure that all oxidizable substances on the entire surface of each crucible have burned off. Figure 1. Positioning a crucible above a burner. 15. D. A. Skoog and D. M. West, Fundamentals of Analytical Chemistry, 3d ed. (New York: Holt, Rinehart and Winston, 1976). 18 3. Gravimetric Determination of Iron as Fe2O3 Quantitative Chemical Analysis 2. Accurately weigh three samples of unknown containing enough Fe to produce ~0.3 g of Fe2O3. Dissolve each sample in 10 mL of 3 M HCl (with heating, if necessary). If there are insoluble impurities, filter through qualitative filter paper and wash the filter well with distilled water. Add 5 mL of 6 M HNO3 to the filtrate, and boil for a few minutes to ensure that all iron is oxidized to Fe(III). 3. Dilute the sample to 200 mL with distilled water and add 3 M ammonia16 with constant stirring until the solution is basic (as determined with litmus paper or pH indicator paper). Digest the precipitate by boiling for 5 min and allow the precipitate to settle. 4. Decant the supernatant liquid through coarse, ashless filter paper (Whatman 41 or Schleicher and Schuell Black Ribbon, as in Figures 2-18 and 2-19 in the textbook). Do not pour liquid higher than 1 cm from the top of the funnel. Proceed to step 5 if a reprecipitation is desired. Wash the precipitate repeatedly with hot 1 wt% NH NO until little or no Cl- is detected in 4 3 the filtered supernate. (Test for Cl- by acidifying a few milliliters of filtrate with 1 mL of dilute HNO and adding a few drops of 0.1 M AgNO . If precipitate is observed, Cl- is 3 3 present.) Finally, transfer the solid to the filter with the aid of a rubber policeman and more hot liquid. Proceed to step 6 if a reprecipitation is not used. 5. Wash the gelatinous mass twice with 30 mL of boiling 1 wt% aqueous NH4NO3, decanting the supernate through the filter. Then put the filter paper back into the beaker with the precipitate, add 5 mL of 12 M HCl to dissolve the iron, and tear the filter paper into small pieces with a glass rod. Add ammonia with stirring and reprecipitate the iron. Decant through a funnel fitted with a fresh sheet of ashless filter paper. Wash the solid repeatedly with hot 1 wt% NH4NO3 until little or no Cl- is detected in the filtered supernate. Then transfer all the solid to the filter with the aid of a rubber policeman and more hot liquid. 6. Allow the filter to drain overnight, if possible, protected from dust. Carefully lift the paper out of the funnel, fold it (Figure 2), and transfer it to a porcelain crucible that has been brought to constant mass.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Maths Master
Academic Master
Top Quality Assignments
Premium Solutions
Innovative Writer
Top Rated Expert
Writer Writer Name Offer Chat
Maths Master

ONLINE

Maths Master

You can award me any time as I am ready to start your project curiously. Waiting for your positive response. Thank you!

$31 Chat With Writer
Academic Master

ONLINE

Academic Master

I am known as Unrivaled Quality, Written to Standard, providing Plagiarism-free woork, and Always on Time

$21 Chat With Writer
Top Quality Assignments

ONLINE

Top Quality Assignments

I have read your project details. I can do this within your deadline.

$22 Chat With Writer
Premium Solutions

ONLINE

Premium Solutions

Give me a chance, i will do this with my best efforts

$45 Chat With Writer
Innovative Writer

ONLINE

Innovative Writer

Give me a chance, i will do this with my best efforts

$17 Chat With Writer
Top Rated Expert

ONLINE

Top Rated Expert

I have read your project details. I can do this within your deadline.

$28 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Neher mcgrath calculation excel - Homework help - Jbhifi gift card refund - Nightingale apartments san diego - Colorbond shale grey exterior - Corporate level strategy of p&g - Perceptual map iphone - Romans 1 8 worldview - The legal system and adr analysis memo - Original cost $45 markup 20 - Essay - Series circuits 14.1 worksheet answers - The following musical excerpt represents strophic form - Naeyc code of ethics pdf - Internal auditors are primarily involved with - Respond to student post - Bravo tv on verizon fios - Travel Etiquette and Safety Brochure NEED IN 10HRS ONLY OFFER IF YOURE ABLE TO COMPLETE WITHIN SHORT TIME FRAME - Why do germinated peas undergo cell respiration - Concepts in enterprise resource planning 3rd edition - Example of thesis statement about technology - Click and learn virus explorer - Ethical and legal implications of disclosure and nondisclosure - Auk platform north sea - Drapers ward textile mill password - Dicussion 4 ( Business Ethics) - Blake and mouton managerial grid - Define debilitative emotions - Challenges and solutions to organizational knowledge management in kbms - Federal safeguards for financial reporting - Ncea level 2 biology cells - Traditional african music youtube - Enterprise vault 12 installation guide - En 61000 6 2 2005 ac 2005 - Poetry makes nothing happen julia alvarez poem - Kent law school admissions - Information governance - Designing team and team identity in team management - The two dry cleaning companies in collegetown - Proportional parts of parallel lines - Radiometric dating game - Case study on mis information system in restaurant - Kroger ground beef price per pound - Lita lopez started biz consulting - Preening behavior enables a bird to continue to fly successfully by - Terry wright cycles spalding - Dsi - Jesus bead bracelet meaning - Southampton vts vessels alongside - Where should pesticides be stored servsafe - Nursing Leadership DB#10 (Chapter 12) - Hulu error code playback buffer watchdog reached - How to make an outline for a speech class - Advantages of second class levers - Data visualization - What is the calorimeter constant of a styrofoam cup - Clean inc cleans and waxes floors for commercial customers - Perceptual distortion - What is a provider sponsored organization - Selfishness in the great gatsby - Food hygiene level 2 answers - Closely stacked flattened sacs plants only - Maple ridge vet clinic - Wh questions in past - Portfolio Project - Ethics- show you care - Bmj open instructions for authors - Jerry lee lewis house booneville ms - Audience centeredness means that public speakers should - Moles of hcl neutralized by naoh - How is tesco influenced by stakeholders - Euchromatin and heterochromatin ppt - Science club electric circuit - Ocean beach pleasure park - Correction of errors in accounting questions - Mass of empty 100 ml beaker - Mutation rule states - Idaas is a iaas - Napoleon beazley last words - Article notes - The eagle has landed dog whistle - Lesson 10.3 two way tables answer key - Human needs interactive and unitary process in nursing - L occitane garden city - Advanced Ergonomics - Sue's shop the dance warehouse - HU 2000 - There will come soft rains answer key - Worksafe victoria job safety analysis worksheet - Case Study in Health Care Financial Ethics - Bergh apton recycling centre - Big Data - Discussion - Logic gate truth table - University of greenwich extenuating circumstances - Discussion 2.3 - Crush seal o ring - +91-8306951337 get your love back by vashikaran IN Maheshtala - 9/11 102 minutes that changed america watch online - Section 3 case study....