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

Mass of alka seltzer tablet

02/12/2021 Client: muhammad11 Deadline: 2 Day

Experiment 4

Post Lab

Plop, Plop, Fizz, Fizz: The Mass Percent of NaHCO3

Name: Rawan Douar Date: 10/04/2016

Instructor: Daniel Otis Section: 691

Introduction:

In this experiment we are going to learn the importance of the mass percent and how to use it in order to determine mass of the ingredients in any tablet. Also we will learn that the tablet contains small amount of medication and the rest is just binders and flavors. This experiment is very important in our life especially for those who will specialize in Pharmacy; they will be able to create a new similar tablet of any kind by themselves. We will specifically concentrate on Alka-Seltzer tablets and create similar tablets with different concentration and compare it with the manufacturer’s mass percentage.

Materials:

-100mL Beaker

-Graduated cylinder

-Small watch glass

- Weighting machine

-De-ionized distilled water

-Kim wipes

-Alka-Seltzer

-Paper Towels

-Vinegar

Procedures:

1.) Weigh 100 ml empty beaker, clean it and dry it. Write down the weight in the lab notebook to the closest 0.001g

2.) Get a graduated cylinder and place 35 ml of de-ionized distilled (DI) water in the weighted 100 ml beaker.

3.) Get the beaker and make sure it’s clean and re-weight it including the water and then recorded it. (Clean the beaker with Kim wipes every time before weighing it)

4.) Break Alka-Seltzer tablet into two halves and weight each half carefully.

5.) Add one half of the tablets to the beaker that contains the distilled water. Then add the pre weighted watch glass on top of it in an inverted position to deflect any splatter. Mix the contents and make sure it dissolves completely in the solution.

6.) When the reaction finished and the bubbles disappear weigh all of the materials again separately (Beaker, solution and the watch glass). Record the new masses

7.) Empty the content of the beaker in the appropriate sink and clean it with distilled water. In the end make sure to dry the beaker and the watch glass using Kim wipes and paper towels.

8.) Again using a graduated cylinder, place a 5 ml of vinegar in the 100 ml beaker. Then pour water into the cylinder until it reaches 35 mL. Place the solution into the weighted beaker used at the beginning of the experiment.

9.) You must reweigh the beaker including the solution and make sure the beaker is clean and dry. Make sure you record the weigh

10.) Now add the 2nd half of the tablet to the beaker including the distilled water and cover it with the watch glass. Make sure you mix the solution until the tablet completely dissolves in the solution

11.) When the reaction is complete reweight the beaker, the solution, watch glass and write down the weight in the lab notebook.

12.) Over again do the experiment using 10, 15, 20, 25, 30, and 35 ml of vinegar.

Data Table 1

Figure 1: Lab Calculations

Volume

Mass Before Reaction (g)

Mass after Reaction (g)

CO2

NaHCO3

RUN

VINEGAR

WATER

½ TABLET

BEAKER

Beaker and Solution

Watch Glass

Beaker and Solution and Watch Glass Mass

Total Mass

Beaker and Solution and Watch Glass

GRAMS

MOLES

MOLES

GRAMS

MASS %

1

0

35

1.839

51.79059

86.068

27.9727

114.04

115.62

113.781

0.259

0.00589

0.00589

0.495

26.92

2

5

30

1.42

51.79059

86.510

27.9727

114.48

115.68

114.260

0.22

0.0050

0.0050

0.42

29.58

3

10

25

1.527

51.79059

85.708

27.9727

113.68

114.75

113.223

0.457

0.0104

0.0104

0.874

57.24

4

15

20

1.688

51.79059

86.008

27.9727

113.98

115.29

113.602

0.378

0.0859

0.0859

0.722

42.77

5

20

15

1.6443

51.79059

85.288

27.9727

113.26

114.57

112.927

0.333

0.00757

0.00757

0.636

38.71

6

25

10

1.566

51.79059

86.148

27.9727

114.12

115.35

113.784

0.336

0.0076

0.0076

0.641

40.93

7

30

5

1.854

51.79059

86.098

27.9727

114.07

115.54

113.686

0.384

0.00873

0.00873

0.733

39.54

8

35

0

1.389

51.79059

86.54

27.9727

114.512

115.57

114.184

0.328

0.00745

0.00745

0.626

45.17

Calculations

1) Run 1 :

Mass of CO2 = Total Mass of Beaker and Solution and Watch Glass Mass (Before the reaction) – the total mass after the Reaction (Beaker and Solution and Watch Glass Mass) = 114.04 – 113.781= 0.259 grams

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.259 g x 1 mole / 44.01 g/mol

= 0.00589 moles

0.00589 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.495 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

= 0.495 / 1.839 x 100% = 26.92 %

2) Run 2 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.220 g x 1 mole / 44.01 g/mol

= 0.00500 moles

0.00500 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.420 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

= 0.420 / 1.420 x 100% = 29.58 %

3) Run 3 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.457 g x 1 mole / 44.01 g/mol

= 0.0104 moles

0.0104 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.874 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

= 0.874 / 1.527 x 100% = 57.24 %

4) Run 4 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.378 g x 1 mole / 44.01 g/mol

= 0.00859 moles

0.00859 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.722 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

= 0.722 / 1.688 x 100% = 42.77 %

5) Run 5 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.333 g x 1 mole / 44.01 g/mol

= 0.00757 moles

0.00757 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.636 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

=0.636 / 1.644 x 100% = 38.71 %

6) Run 6 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.336 g x 1 mole / 44.01 g/mol

= 0.00763 moles

0.00763 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.641 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

=0.641 / 1.566 x 100% = 40.93 %

7) Run 7 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.384 g x 1 mole / 44.01 g/mol

= 0.00873 moles

0.00873 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.733 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

=0.733 / 1.854 x 100% = 39.54 %

8) Run 8 :

Molar mass of CO2= 12.01+ (16x2) = 44.01g/mol

Molar mass of NaHCO3 = 22.98+1.008+12.01+(16x3)= 84 g/mol

Moles of CO2 = 0.328 g x 1 mole / 44.01 g/mol

= 0.00745 moles

0.00745 moles = grams of NaHCO3 g x 1 mole / 84 g/mol

= 0.626 grams of NaHCO3

Mass % = mass of NaHCO3/ mass of Tablet x 100%

=0.626 / 1.386 x 100% = 45.17 %

Figure 2: Graph between Mass % of NaHCO3 and Acetic Acid (Vinegar)

Questions

1) The ratio between the mass of the Alka-Seltzer and the mass of the tablet are the same because it is a homogenous mixture. The homogenous mixture of Alka-Seltzer tablet components are equally mixed in the entire tablet. Therefore, the percent of the Alka-Seltzer is same in half mass of the tablet or even 1/4th mass of tablet. So, it remains constant. Law of constant composition.

2) The graph show that the relationship between the mass percentage and the acetic acid is directly proportion, so as the volume of vinegar increases the mass percentage increases so we can determine the amount of NaHCO3 in Alka-Seltzer by knowing the amount of vinegar needed.

Conclusion

It is obvious that there is a relationship between the mass of the CO2 and the NaHCO3 which is almost 1:2 for example in run number the mass of the CO2 is 0.333g and in the NaHCO3 is 0.636 which means that the half amount of NaHCO3 converted to CO2 after the reaction. Also the percentage mass is directly proportional to the mass of the NaHCO3 as shown in Figure number 1.

As the amount of Acetic acid increases the amount of NaHCO3 reacted increase so the minimum number of Acetic acid needed to react the entire amount of NaHCO3 can be calculated as follow:

Taking the last run for example:

35 mL of Acetic Acid 45.17% of NaHCO3 reacted

?? 100%

100% x 35mL/ 45.17% = 77.48 almost 78 mL of Acetic acid needed to react the entire amount of NaHCO3

Mass % of NaHCO3 VS. Acetic Acid

y Mass % of NaHCO3 0 5 10 15 20 25 30 35 26.92 29.58 57.24 42.77 38.71 40.93 39.54 45.17
Vinegar mL

Mass Percentage

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:

Accounting & Finance Specialist
Maths Master
Homework Tutor
Solution Provider
Essay Writing Help
Study Master
Writer Writer Name Offer Chat
Accounting & Finance Specialist

ONLINE

Accounting & Finance Specialist

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.

$47 Chat With Writer
Maths Master

ONLINE

Maths Master

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

$44 Chat With Writer
Homework Tutor

ONLINE

Homework Tutor

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

$41 Chat With Writer
Solution Provider

ONLINE

Solution Provider

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.

$36 Chat With Writer
Essay Writing Help

ONLINE

Essay Writing Help

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.

$29 Chat With Writer
Study Master

ONLINE

Study Master

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

$42 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

Critical Thinking : Trade Barriers: Additional Issues - Trevor noah owns tomi lahren - Shaping psych - Can i compare thee to a summer's day - 137b of the building act 1993 - A set of data consists of observations - Miss clairol helena maria viramontes pdf - Week5 - Introduction to business ethics desjardins pdf - Tractor supply tiller tines - Nova chlorinators and spares - How Essay Writing Service Reviews Can Help You Choose the Best Option - Business pride hughes kapoor pdf - Which of the following statements is untrue regarding cold canvassing - Crosby's basic elements of improvement - Keep patients waiting not in my office - Who was abraham lincoln book pages - Suntrust bank special handling - How to solve integer word problems - Allegory meaning for kids - Unsw physics course outlines - One of the fundamental questions asked by virtue ethicists is - Gender and sexuality reflection paper - Periodontal treatment consent form - Swarovski crystal size chart - Discussion Board Chapter 11 - PPT Presentation - Legal Reg, Compliance, Invest - Illawarra tree top walk address - Discussion - Global Networking - The following is a valid sql statement - The course of true love never did run smooth - The crucial role of the nurse in ehr implementation - Game development proposal template - Winning grants step by step pdf - What is a level 2 merit equivalent to - Romeo and juliet knowledge organiser - "Statute of Limitations" Please respond to the following: - Edit My Resume - What's the Start line? - Wsu failing a class - Cracking the code of life questions - How to write a radio script for an advertisement - An aps 137 v multi mission surveillance radar - Heart of darkness theme - Psy - Form 11 financial separation - Mat 510 final exam - Evidence-Based Project - Graded assignment unit test part 2 basic tools and transformations - Greenfield strategy advantages and disadvantages - Sociology - Vodacom account in arrears - Thomas coupling series 52 - Types of unshielded twisted pair cable - A child of hitler alfons heck pdf - Discussion - HW 2 - Give me liberty by eric foner 5th edition - How to determine the purity of benzoic acid - Final Research Paper - Action verb linking verb helping verb - Molar mass of nahco3 - Paano na kaya karaoke - Ayres sensory integration training australia - 3 day food intake paper - Draw a circuit diagram - Discussion 1 – Setting the Stage for Success - Alexander the great quote - Shipwreck cafe menu - Lrc3 monmouth army mil nsn nsdata - After the success of the company's first two months - Pre lab assignment 1 osmosis and tonicity practice problems - Letter to politician - 147 prices circuit woronora - Dixieland lyrics civil war - Ap psychology semester 1 practice test - Tri component model of attitudes example - Excellence gateway esol entry 1 unit 5 - Prepared a two pages of memo - Describe the japanese feudal system - Signal words and phrases list - Why you should wear sunscreen persuasive speech - Heat effects and calorimetry - Neal street medical centre - Find projection of u onto v - Case Study on Biomedical Ethics in the Christian Narrative - Explain the importance of establishing credibility for business communications - Rory sutherland sweat the small stuff - Peter sherwin net worth - Small business management - Warmer board game mind map a market researcher - High spen primary school - Psy: Teaching and Learning - Excel chapter 2 grader project assessment - Kongsberg simulator mc90 free download - Huang company's last dividend was $1.25 - Experiment 3: the importance of cell cycle control - Paper - Literature Review - Full block style application letter - How to draw a crime scene sketch