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

Basic laboratory techniques experiment 1 report sheet

01/12/2021 Client: muhammad11 Deadline: 2 Day

Final Report

Exercise 1

CHEM 181 DL1 Laboratory Techniques and Measurements

The reason could be atmospheric pressure changes with the higher sea levels, decreasing the degree at which it takes water to boil.

1. Water boils at 100°C at sea level. If the water in this experiment did not boil at 100°C, what could be the reason?

100(102-100)/100=2% error

100(99.2-100)/100=-0.8% error

2. While heating two dif f erent samples of water at sea level, one boils at 102°C and one boils at 99.2°C. Calculate the percent error f or each sample f rom the theoretical 100.0°C.

Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 14

Data Table 1: Length Measurements

Data Table 2: Temperature Measurements

Length (cm)

CD or DVD

Key

Spoon

Fork

Length (mm)

CD or DVD

Key

Spoon

Fork

Length (m)

CD or DVD

Key

Spoon

Fork

12

5.5

18

18

120

55

180

180

0.12

0.055

0.18

0.18

Temperature (°C)

Hot from Tap

Boiling

35

Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 14

Boiling for 5 minutes

Cold from Tap

Ice Water - 1 minute

Ice Water - 5 minutes

Temperature (°F)

Hot from Tap

Boiling

Boiling for 5 minutes

Cold from Tap

Ice Water - 1 minute

Ice Water - 5 minutes

Temperature (K)

Hot from Tap

Boiling

Boiling for 5 minutes

Cold from Tap

Ice Water - 1 minute

Ice Water - 5 minutes

85

100

20

2

-1

95

185

212

68

35.6

30.2

308.15

358.15

373.15

293.15

275.15

271.15

Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 14

Data Table 3: Mass Measurements

Estimated Mass (g)

Pen or Pencil

3 Pennies

1 Quarter

2 Quarters, 3 Dimes

4 Dimes, 5 Pennies

3 Quarters, 1 Dime, 5 Pennies

Key

Key, 1 Quarter, 4 Pennies

Actual Mass (g)

Pen or Pencil

3 Pennies

1 Quarter

2 Quarters, 3 Dimes

4 Dimes, 5 Pennies

3 Quarters, 1 Dime, 5 Pennies

Key

Key, 1 Quarter, 4 Pennies

Actual Mass (kg)

Pen or Pencil

4

8

4

12

21

30

7

18

5.6

7.5

5.6

18

22.1

32.3

7.7

24

Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 14

Exercise 2

3 Pennies

1 Quarter

2 Quarters, 3 Dimes

4 Dimes, 5 Pennies

3 Quarters, 1 Dime, 5 Pennies

Key

Key, 1 Quarter, 4 Pennies

0.0056

0.0075

0.0056

0.018

0.0221

0.0323

0.0077

0.024

Density= mass/ volume

Volume= length x width x height

Volume= 3.6 x 4.21 x 1.17= 17.73 cm

Density= 21.3/17.73= 1.20 g/mL

1. An unknown, rectangular substance measures 3.60 cm high, 4.21 cm long, and 1.17 cm wide. If the mass is 21.3 g, what is this substance’s density (in grams per milliliter)?

3

Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 14

Density= mass/volume

Volume= mass/ density

Volume= 26.15/19.30= 1.35 mL Au

2. A sample of gold (Au) has a mass of 26.15 g. Given that the theoretical density is 19.30 g/mL, what is the volume of the gold sample?

If you dropped the object into the beaker then the scale would measure the mass of the object instead of the mass of the displaced water and the measurements would be thrown off.

3. What would happen if you dropped the object into the beaker while using the Archimedes’ Principle method instead of submerging the object?

How the magnets density measurement using the Archimedes principles compare to the density measurement using the calculated volume is that the magnets density measurement during the Archimedes was higher than the density measurement using the calculated volume. I think that the Archimedes principle method might be more accurate because with the calculated volume there is more room for error as I made the measurements.

4. How did the magnet’s density cdalculation using the Archimedes’ Principle compare to the density calculation using the direct measurement method? Which technique might be more accurate? Why?

Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 14

Data Table 4: Liquid Measurements

The conclusions I can reach from the simple density analysis is that is could not actually be gold because pure gold is 19.32 g/cm .

5. You are given a small piece of gold colored material and want to determine if it is actually gold. Using the Archimedes Principle you f ind that the volume is 0.40 cm and the mass is 6.0 g. What conclusions can you reach f rom your simple density analysis?

3

3

Water

Mass A: Graduated Cylinder (g)

Volume (mL)

Mass B: Graduated Cylinder with Liquid (g)

Mass B-A: Liquid (g)

Density (g/mL)

Percent Error (%)

Isopropyl Alcohol

Mass A: Graduated Cylinder (g)

Volume (mL)

Mass B: Graduated Cylinder with Liquid (g)

Mass B-A: Liquid (g)

Density (g/mL)

Percent Error (%)

19.3

5

24.4

5.1

1.00

26.4%

19.3

5

23.6

4.3

0.786

22.3%

Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 14

Data Table 5: Magnet - Direct Measurement Method

Data Table 6: Water Displacement Method

Magnet

Mass (g)

Length (cm)

Width (cm)

Height (cm)

Volume (cm )

Density (g/cm )

4.2

2.5

0.5

2.5

3 3.125

3 1.344

Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 14

Data Table 7: Archimedes' Method

Magnet

Mass (g)

Initial Volume of Graduated Cylinder (mL)

Final Volume of Graduated Cylinder (mL)

Object Volume (mL)

Density (g/mL)

Metal Bolt

Mass (g)

Initial Volume of Graduated Cylinder (mL)

Final Volume of Graduated Cylinder (mL)

Object Volume (mL)

Density (g/mL)

4.3

6

6.5

0.5

8.6

8

6

7

1

8

Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 14

Exercise 3

Magnet

Mass (g)

Mass of Displaced Water (g)

Volume of Displaced Water (mL)

Density (g/mL)

Metal Bolt

Mass (g)

Mass of Displaced Water (g)

Volume of Displaced Water (mL)

Density (g/mL)

4.3

121.4

121.4

1

8

121.8

121.8

1

Copyright 2019 - Hands-On Labs | http://holscience.com 11 / 14

Data Table 8: Initial Concentration

1% x V1 = 2% x 2V

0.25 x 10 = 1 x 2V

V2= 0.25 x10/1

V2= 2.5mL

How I would prepare 10 mL of a 0.25% HCl solution if 1% HCl available is dilute the 1% in water to get a less concentrated .25% HCl. Then determine the amount of moles by multiplying 0.01 and .25 which equals 0.0025 moles HCl. Then, you prepare 10 mL containing 2.5 mL of 1% HCl.

1. How would you prepare 10 mL of a 0.25% m/v HCl solution if 1% m/v HCl was available? How much 1% m/v HCl is needed? How much distilled water is used?

The relations between the concentration of the sugar solution and the density of the sugar solution is that the density is a lot higher than the comcentration.

2. From the graph of Density vs. Concentration, created in Graph 1, what was the relationship between the concentration of the sugar solution and the density of the sugar solution?

Copyright 2019 - Hands-On Labs | http://holscience.com 12 / 14

Data Table 9: Solutions

Sugar (C H O )

Mass of Volumetric Flask (g)

Mass of Sugar (g)

Total Volume (mL)

Concentration (% m/V)

12 22 11

19.3

8

0.025

0.92%

Solution Volume (mL)

0 25.00 mL

1 25.00 mL

2 25.00 mL

3 25.00 mL

4 25.00 mL

Solution Mass (g)

0

1

2

3

4

Solution Density (g/mL)

0

1

26.5

25.3

25.4

25.4

25.5

1.06

Copyright 2019 - Hands-On Labs | http://holscience.com 13 / 14

2

3

4

Solution Initial Concentration (% m/v)

0

1

2

3

4

Solution Volume Transferred (mL)

0

1

2

3

4

Solution Final Concentration (% m/v)

0

1

2

3

1.012

1.016

1.016

1.02

0.92%

2.9%

2.9%

2.9%

0

2.5

4.5

3

6

0.925

2.9%

13.05%

Copyright 2019 - Hands-On Labs | http://holscience.com 14 / 14

Graph 1: Density versus Concentration

4

8.7%

17.4%

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 Hand
Engineering Solutions
Assignment Hut
Quick Finance Master
Maths Master
Quality Homework Helper
Writer Writer Name Offer Chat
Helping Hand

ONLINE

Helping Hand

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.

$40 Chat With Writer
Engineering Solutions

ONLINE

Engineering Solutions

I have read your project description carefully and you will get plagiarism free writing according to your requirements. Thank You

$49 Chat With Writer
Assignment Hut

ONLINE

Assignment Hut

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.

$29 Chat With Writer
Quick Finance Master

ONLINE

Quick Finance Master

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

$38 Chat With Writer
Maths Master

ONLINE

Maths Master

I am a professional and experienced writer and I have written research reports, proposals, essays, thesis and dissertations on a variety of topics.

$24 Chat With Writer
Quality Homework Helper

ONLINE

Quality Homework Helper

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

$38 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

Whitley council handbook maternity - HR week 3 - Blue supergiant star life cycle - 7Ass ( Kim Woods) only - Sonnet 18 questions pdf - Buffer solution ph 10 msds - Quotes from the crucible - Engaging Students with Listening, Speaking, and Writing - Ancient india and greece sculptures - WORKING - Discussion 1: Importance of Managerial Accounting- APA format - MBA515 Week 5 Dis 5 - Amp custom super login - Nhs tayside nurse bank - Iso 27001 requirements checklist - Macbeth act 1 scene 1 annotations - Reverse leakage current diode - Emergency evacuation procedure checklist - Math magician 100 questions in 5 minutes - Database design - Raa membership levels bronze - Entrepreneurship - Calcium carbonate in eggshells - Byte of accounting inc answers - Early childhood - How long is a microcentury - Chipped demonic key stone - Knights of the hill country sparknotes - Sheikh ammar bin humaid al nuaimi net worth - Anz order stationery online - Answer only 4 questions - Discussion... - Shon harris cause of death - Tony mirabelli learning to serve - Nm 1a oc3 pom eol - Kim Woods only - The management of strategy concepts and cases 10th edition pdf - 2021 vce exam dates - How does your engine run program - Interactivity in the context of e-commerce provides which of the following functionalities? - Appeal Letter - Hp proximity card reader - Leading with values IP - What is vx in physics - 114 ashley street chatswood - Difference between intramodal and intermodal transportation - Moodle kent ac uk - Capsim drift rates - Karlarra house aged care - Islamic proverbs in english - There are 3 specific classes for all fingerprints - What is statutory reporting in australia - A nurse-manager appropriately behaves as an autocrat in which situation? - MKTG201 Week 7 Discussion - Camp millowski - Hhmi virus explorer worksheet answer key - 4.1 compute gross profit for april - Always imposter among us hack - Competition in the craft brewing industry in 2017 case study - No fear shakespeare hamlet - Dell precision tower 7910 xcto base - 125 lexton street lake wendouree - Rigorous two phase locking - Http www hhs gov healthcare facts timeline index html - Asc 350 40 pwc - Theories in Social work - Activity 13.4 glacier national park investigation answers - Different types of specialist lln support - Working credit balance centrelink - Salvador dali frida kahlo relationship - Movieassignments com - Does seoul have uber - Sudoku game java code - How to calculate total magnification of a microscope - Psychoanalytic theory of human development - Bonnyrigg high school bell times - Synthes product catalog pdf - Arkansas facts and symbols - Chartford homes cookridge leeds - Vce physics extended practical investigation ideas - Ovid lww ppv journal - Assignment on urgent basis 1 - Positive interdependence and knowledge sharing articles - Acrostic poem on book - Bewick crescent surgery prescription line - General design rules for machining ppt - Joshua david stone death cause - Locate coventry ac uk - Why does the market leader use comparative messages - Disney's purchase of lucasfilm negotiation - Car speed detector using arduino uno - 35 wongaburra st jindalee - Discussion Questions - Week 7 Assignment: Signature Assignment Paper: Culminating Argument - Work - Albrecht's research on stress in the workplace - Secret harbour surf life saving club - Bartonline canvas - 1002 2 - Sorenson goldsmith integrated budget model