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

Stoichiometry and limiting reactant lab practical answers

27/10/2021 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:

A+GRADE HELPER
Top Essay Tutor
Assignment Solver
Finance Professor
Helping Engineer
Custom Coursework Service
Writer Writer Name Offer Chat
A+GRADE HELPER

ONLINE

A+GRADE HELPER

I am an elite class writer with more than 6 years of experience as an academic writer. I will provide you the 100 percent original and plagiarism-free content.

$30 Chat With Writer
Top Essay Tutor

ONLINE

Top Essay Tutor

After reading your project details, I feel myself as the best option for you to fulfill this project with 100 percent perfection.

$32 Chat With Writer
Assignment Solver

ONLINE

Assignment Solver

I have done dissertations, thesis, reports related to these topics, and I cover all the CHAPTERS accordingly and provide proper updates on the project.

$19 Chat With Writer
Finance Professor

ONLINE

Finance Professor

I have written research reports, assignments, thesis, research proposals, and dissertations for different level students and on different subjects.

$35 Chat With Writer
Helping Engineer

ONLINE

Helping Engineer

I have assisted scholars, business persons, startups, entrepreneurs, marketers, managers etc in their, pitches, presentations, market research, business plans etc.

$36 Chat With Writer
Custom Coursework Service

ONLINE

Custom Coursework Service

I am an academic and research writer with having an MBA degree in business and finance. I have written many business reports on several topics and am well aware of all academic referencing styles.

$18 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

Triple aim of health reform - How to select faces in blender - How does job analysis support managers making pay decisions - Sigma gamma rho boule - Contention in an essay - Statistics - External insulation planning permission - Sua accounting - Costco core competencies - Iowa model of evidence based practice diagram - [Report] Materials engineering for healthcare settings - Fulmer spices an overall assessment tool for older adults - Ncnm renew of licence - ¿adónde van felipe y juan carlos mientras sus amigos van al cenote? - Internal energy of monatomic ideal gas - Vts southampton shipping movements - What is eight in roman numerals - 11 marmont street geebung - Information systems infrastructure evolution and trends - Nommar model - Marlin davies buys a truck for $28 000 - NEED AN A+! Summative Assignment: Critique of Research Article NEED AN A+! - Describing a scene essay - Evidence-based Practice - Escience lab 14 mendelian genetics answers - Dapps rule - Casio fx-100au plus simultaneous equations - Jane elliott brown eyes blue eyes experiment full video - Nonfiction writing can be trusted to be true true false - Aca ethical decision making model - Daisy pool covers 525 micron ultradome pool blanket - In search of my mother's garden pdf - They say i say argument - 3874 #5 9-10 - Statement of results cambridge - How to use endnote x7 in word - When were advos introduced - Factoring perfect square binomials - Analyze the yoga clothing industry using Michael Porter’s five-forces model. Discuss which of the three kinds of business-level strategies you think Lululemon is employing or should employ? - Amazon HQ2 Site Selection - How do you know which counterargument to address - Paper - Capstone Project Change Proposal Presentation (TOPIC FALL PREVENTION STRATERGIES IN HOSPITALS). - Apple's winning marketing strategy case study - Major dramatic question - Northumbria university semester dates - Sex offender registry ny watchdog - Advanced level accounting syllabus - Liq fusion 7000 fbe - Discussion 1.2 - MAC, DAC, RBAC - International Public Administration Power Point - Post war voices emerge 1950s 1960s compare and contrast essay - Seneca peer to peer lending - Puget sound skills center - Communication - EXPLAIN NOLA PENDER'S MODEL AND HOW CAN YOU APPLY IT TO YOUR NURSING PRACTICE. EXPLAIN IN 150 WORDS - Express your answer numerically as an integer - Snl politically incorrect private investigator - Comprehensive 12-week periodized training program - Qualities of a peer educator - Accounting budget project - Which of the following is an online library penn foster - Apa research proposal template doc - Murray bridge bus timetable - 50-100 Word Discussion Reply 2 - How to measure air pressure - Ps music continuing problem answers - Assignment: Identify a Problem - Wk#2 Research paper - Vidas hiv duo ultra package insert - 2 thessalonians chapter 2 summary - Working with individuals with disabilities valerie - Discussion BI - Bindu menon asianet middle east - MDP 500 FOUNDATIONS OF DEVELOPMENT: Delivering 3 speech - Dulux mt aspiring double - Process of wave refraction - Reasons for a court hierarchy - Slot machine java - Dalene kurtis neil strauss - Nursing - Tasmania police scanner frequencies - Smiths fuel gauge wiring diagram - 63a the ridge helensburgh - Armed forces hospital king abdulaziz naval base jubail - 22.2 mm ring size - Convert to polar form calculator - Discussion paper by 09/12/2020 at 8:00 pm 2,100 words , please add references and citations - Business skills training manual - Super star clay targets - Does the acid or base go in the burette - 12 angry men group dynamics - A visionary organization must specify its foundation, set a direction, and formulate - Rj12 6 plug with offset lug - Research Design and Sampling - Sc1040 week 1 assignment worksheet - What is strategy porter 1996 - When did little red riding hood originate - A book review example