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

Precipitation reaction lab report conclusion

04/12/2021 Client: muhammad11 Deadline: 2 Day

Final Report

Exercise 1

CHEM 181 DL1 Stoichiometry of a Precipitat ion Reaction

My percent yield was 86 percent. It was not the optimal 100 percent, but it was on the higher range. It could be possible that I could have had a higher percent yield had the scale not have gone only to the tenth place. My theoretical yield was 0.68 g. But because the scaleonly went to the tenths place I cannot speak with certainty that the weight of my product was only 0.6 g. It's possible that it could have been 0.68 g but I will never know that. There

1. Given that a theoretical yield for isolating Calcium Carbonate in this experiment would be 100%. From that information and based on the results you obtained in this experiment, describe your success in the recovery of calcium carbonate and suggest two possible sources of error that would have caused you to not obtain 100% yield.

Excess product of CaCO3 would be produced because there wouldn't be enough CaCl2 to react with Na2CO3. The purpose of stoichiometric quantities is to know the correct amount or close to the correct amount of each reactant in order to produce a product that is close to the theoretical amount and therefore have a higher percent yield.

2. What impact would adding twice as much Na CO than required for stoichiometric quantit ies have on the quantity of product produced?

2 3

Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 3

Data Table 1: Stoichiometry Values

7.5gCaCl2•9H2O x(1molCaCl2•9H2O/273.16gCaCl2•9H2O)x(1molCaCl2/1molCaCl2•9H2

3. Determine the quantity (g) of pure CaCl in 7.5 g of CaCl •9H O. Show your work.2 2 2

4g MgSO4•7H2O x(1mol MgSO4•7H2O/246.51g MgSO4•7H2O)x(1mol MgSO4/1mol MgSO4•H2

4. Determine the quantity (g) of pure MgSO in 2.4 g of MgSO •7H O. Show your work.4 4 2

According to the background, our established total mass of the reactants should equal the total mass of our on hand products. Thus we should expect a slightly smaller amount of product since in practical experimentation a system is seldom completely closed. The conservation of mass could be checked in our experiment by weighing the reactants and weighing our product. The total mass of the reactants should be slightly larger than the weight of the product.

5. Conservation of mass was discussed in the background. Describe how conservation of mass (actual, not theoretical) could be checked in the experiment performed.

Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 3

Initial: CaCl •2H O (g)

Initial: CaCl •2H O (mol)

Initial: CaCl (mol)

Initial: Na CO (mol)

Initial: Na CO (g)

Theoretical: CaCO (g)

Mass of Filter paper (g)

Mass of Filter Paper + CaCO (g)

Actual: CaCO (g)

% Yield:

2 2 1.0 g

2 2 0.0068 mol

2 0.0068 mol

2 3 0.0068 mol

2 3 0.8 g

3 0.68g

0.9 g

3 1.5 g

3 0.6 g

86%

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:

Helping Engineer
Assignment Hub
Buy Coursework Help
Assignment Guru
Unique Academic Solutions
Premium Solutions
Writer Writer Name Offer Chat
Helping Engineer

ONLINE

Helping Engineer

I will provide you with the well organized and well research papers from different primary and secondary sources will write the content that will support your points.

$26 Chat With Writer
Assignment Hub

ONLINE

Assignment Hub

I find your project quite stimulating and related to my profession. I can surely contribute you with your project.

$25 Chat With Writer
Buy Coursework Help

ONLINE

Buy Coursework Help

I am an experienced researcher here with master education. After reading your posting, I feel, you need an expert research writer to complete your project.Thank You

$37 Chat With Writer
Assignment Guru

ONLINE

Assignment Guru

I am a PhD writer with 10 years of experience. I will be delivering high-quality, plagiarism-free work to you in the minimum amount of time. Waiting for your message.

$28 Chat With Writer
Unique Academic Solutions

ONLINE

Unique Academic Solutions

As per my knowledge I can assist you in writing a perfect Planning, Marketing Research, Business Pitches, Business Proposals, Business Feasibility Reports and Content within your given deadline and budget.

$49 Chat With Writer
Premium Solutions

ONLINE

Premium Solutions

I will be delighted to work on your project. As an experienced writer, I can provide you top quality, well researched, concise and error-free work within your provided deadline at very reasonable prices.

$26 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

Using effective communication to identify client needs and expectations - Midi file format in multimedia - Critical control points for a specific food production system - Op-ed, modeled after an existing reputable online news site - Thick and thin questions - Guy fawkes homework help - Blue white f 2000 - Discussion - Nickel and dimed discussion questions - Irony in trifles by susan glaspell - Wire gauze science definition - Examples of all six simple machines - Fixed asset disposal policy - Tiempo - Levine company uses the perpetual inventory system - ERM Certification - Audio cable color code - Response - 700 word discussion – What are the five ICT enablers of energy efficiency identified by European strategic research Road map to ICT enabled Energy-Efficiency in Buildings and constructions, (REEB, 2010)? - Hu element periodic table - Anastasia palecek qld premier - Card stacking propaganda examples - Personal mantra definition - Kingdom animalia classification flow chart - Fishbone diagram for service industry - The manufacturer of the vinegar used in this experiment - Persuading Viewer - Successful University Life course - The sanding department of richards furniture company - Dbt skills training manual - Liberal credit policy - Discussion 9 - Nursing research - A scratch list for a message is - West coast fasteners welshpool - Inclusive practice case study - Aspen capital cost estimator tutorial - Intercept cs cold sore prevention system shoppers drug mart - 219 grand vista cibolo tx 78108 - Pgce secondary personal statement - World Civilization before 1650. Gibby - Mccann v wal mart stores - Te form of kakimasu - M1D1 Michelangelo - Describe the importance of effective communication in the correctional setting - X 3 cost y 3 sin t - 5 reflexive verbs in spanish - Business INFO - Bronze age mindset by bronze age pervert - Nrs 490 scholarly activity summary - 8 qualities of hanuman - Domyos which country brand - Chose in action legal definition - Art history research paper outline template - Physics essay questions and answers - Law firm staff evaluation forms - Blood brothers key quotes - Universal Learning Characteristics - Autodock vina result interpretation - English language metalanguage glossary - Manfred korfmann trojan war - Double approach avoidance conflict - Setting of ready player one - Full time apprenticeship hours - Scania truck fault codes - How to write ionic equations - How to create your own civilization - Asch experiment ethical issues - Prison privatization - Significant endeavor essay - Urinary system case study answers - Wye valley scrap yard - Individual level of analysis theories - Sqa higher english 2014 - Sources of economic growth hsc - Howard publishing company songs of faith and praise - Electronic reserve readings university of phoenix - Sodium chloride equivalent method - Puregym organisational structure - Ops 571 week 6 signature assignment - Op - How many bit strings of length contain - Ima statement of ethical professional practice citation - Granite gear rongbuk 28 review - Cambridge primary mathematics stage 2 - Stp data transmission category - Importance of establishing credibility in business communications - Wrap it up case study solution - Periodic table group labels - Case Study - Amoxicillin 500mg for diverticulitis - Research paper subject data mining 2 pages - 12 years a slave costumes - Bankwest zero platinum eligibility - Essay due tomorrow for ENC1102 $20 - Assignment Due 09/08/2020 3pm - Bargaining power of buyers in healthcare industry - 101 ways to praise a child - Electron configuration worksheet w311 - Luke's historical purpose in writing acts was to