StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...

Chem lab module 7 - Essay Example

Comments (0) Cite this document
Summary
One compound in the baking powder dissolved while other could be seen as a precipitate settled at the bottom. I decanted the test tube and separated the solid and the solution.
Taking the solid…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER91.5% of users find it useful
Chem lab module 7
Read Text Preview

Extract of sample "Chem lab module 7"

Download file to see previous pages The solution and the solid were separated by decantation.
I divided the remaining solid available to perform vinegar. Since no bubbles were seen, the possible compounds were narrowed down to Plaster of Paris and cream of tartar. On addition of hydrochloric acid, the precipitate didn’t dissolve, thereby, confirming the solid precipitate to be Plaster of Paris.
Moving to the solution part, a violet color was obtained on carrying out the pH test, which narrowed down the compounds to table salt, glucose and sucrose. On copper sulphate test, no reddish brown precipitate was observed; hence presence of glucose was not possible. The only other sugar that could be present otherwise was sucrose.
I took 2g of the given unknown mixture in a test tube and added water. After decanting the solution from the solid, I carried out the identification tests separately on the solid and the solution parts.
I, first, carried out the iodine test on the solid precipitate and got a negative result. Next I performed the vinegar test and observed bubbles rise from the test tube, hence confirming the presence of baking soda.
In the remaining solid part, which I had previously separated into another test tube, I added hydrochloric acid. Since the precipitate didn’t dissolve, the other constituent of the mixture was identified as Plaster of Paris.
I added 2g of mixture 2 in a test tube followed by 10 ml of water. After separating the solution from the solid, I performed the pH test on the solution and obtained green color. To distinguish between the possible presence of drain opener and washing soda, I added vinegar, after taking 2ml of the solution in another clean test tube. Bubbles were seen to rise in the tube, hence confirming the presence of drain opener.
In the solid part, I performed the iodine test, followed by vinegar test only to be met by a negative result. The possible compounds were narrowed ...Download file to see next pages Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Chem lab module 7 Essay Example | Topics and Well Written Essays - 750 words”, n.d.)
Chem lab module 7 Essay Example | Topics and Well Written Essays - 750 words. Retrieved from https://studentshare.org/miscellaneous/1556816-chem-lab-module-7
(Chem Lab Module 7 Essay Example | Topics and Well Written Essays - 750 Words)
Chem Lab Module 7 Essay Example | Topics and Well Written Essays - 750 Words. https://studentshare.org/miscellaneous/1556816-chem-lab-module-7.
“Chem Lab Module 7 Essay Example | Topics and Well Written Essays - 750 Words”, n.d. https://studentshare.org/miscellaneous/1556816-chem-lab-module-7.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Chem lab module 7

Module 7

...?Role playing Malhotra p. 398, Activities 2 As a marketing research manager of a local bank asked to assess the demand potential of a certain area it is essential to keep in mind that when a marketing problem or opportunity arises, it is imperative that a researcher begin by conducting a secondary research. The sources of this secondary research are primarily categorized as either internal or external. Internal secondary data mainly comprises of sources such as sales invoices, customer complaints, customer feedback etc. External secondary data can be gathered from libraries, the internet, books and government records, media, trade associations, universities, banks etc. Both these can be utilized to effectively achieve... playing Malhotra p....
1 Pages (250 words) Case Study

Module 7

In Japan, it was the samurai class which embraced Zen most fully. The samurai comprised the warrior class that served the emperors and members of the landed aristocracy; the word samurai translates to ‘men who serve’ and their code of conduct is contained in the Bushido (where bushi means ‘warriors’). Zen particularly appealed to the Samurai because of its emphasis on simplicity of lifestyle and spiritual and physical discipline. Meditation and a study of insoluble problems became the means of cleansing an individual of earthly desires, and focusing on nothingness to discover the ‘inner truth’ (Smitha, 2011). It is this ability to concentrate on the present moment to the exclusion of all else that enabled the Samurai to live, fig...
3 Pages (750 words) Essay

Final project (module 1-7)

... of the organizational objectives. Table of contents Page number 1. Abstract ……………………………………………………………………....2 2. Introduction…………………………………………………………………...4 3. Organizational communication at Silicon Limited………………...……..…..5 a. Flow of communication within groups and between individuals………...5 b. Formal and informal communications channels………………………….6 c. Communication approaches used…………………………………………7 d. Applicable communication theories………………………………………7 e. Major forms of interpersonal communication…………………………….11 f. Implications of interpersonal relationships on communication…………..12 g. Reflections on organizational and individual ethics and values through communication…………………………………………………………….12 h. Promotion of diversity through communication...
9 Pages (2250 words) Essay

Module 4,5,& 7 Strategic Management

...STRATEGIC PLAN FOR MANDALAY RESORT GROUP Strategic Plan for Mandalay Resort Group [Insert Your First and s] [Insert of University] STRATEGIC PLAN FOR MANDALAY RESORT GROUP 2 Abstract This paper develops a 3-year strategic plan for Mandalay Resort Group as of 2004. STRATEGIC PLAN FOR MANDALAY RESORT GROUP 3 Strategic Plan for Mandalay Resort Group U.S. Entertainment / gaming industry has seen major changes in industry culture. Mandalay's signature theme resort concept aside, entertainment / gaming is no longer a Las Vegas', Sin City's, exclusive monopoly over gain, fun and play. Internet gambling, an increasing number of competitors, mergers, acquisitions, and joint ventures (MGM, Park Place, and Harrah's... PLAN FOR...
3 Pages (750 words) Essay

Analytical Chem

titrant volume. From the volume of titrant at the equivalence point weight of KI and KCl in the unknown solution was determined.
Potentiometric titration is based on change in electrode potential with change in the ionic concentration during titration reaction. During titration reaction, there is decrease in the ionic concentration in a solution and this leads to decrease in electrode potential in accordance with Nernst Equation, which relates electrode potential with concentration of the ion in equilibrium with the electrode.
2. A silver nitrate solution containing 0.9922 grams of AgNO3 in 100 mL of solution was used as the titrant. The titrant was handled carefully so as to protect the skin from it. Safety ware and hand...
5 Pages (1250 words) Lab Report

CHEM 121 pre-lab

... ______________________________________ Drawer number _________ Lab Day and Time:____________________________ ________________ Experiment 2: PRELAB ASSIGNMENT FOR DENSITY 1. The definition of density is ___Mass__________ per __Unit Volume___________. The word "per" indicates the arithmetic operation ___Division________________. 2. When using a graduated cylinder you read the volume at the bottom of the __Meniscus_________________. It is ______Less________ accurate than a pipet. (more or less) 3. In an experiment performed as in Part A, the following data were collected: mass of vial 20.0138 g mass of vial + water 29.9368 g volume of water 10.00 mL Then: A. The mass...
2 Pages (500 words) Speech or Presentation

Chem 1

Multiple Choice questions may have more than one correct answer. Indicate all correct responses Which of the following formulas cannot be correct for a stable compound?
a) (NH4)2SO4
b) KNO2
c) Ca2O
d) Fe2(PO4)2
Answer: d) Fe2(PO4)2
2. Give the correct formula for:
a) Copper(II) nitrate
b) Diphosphorus tetrasulfide
c) Sodium periodate
d) Nitrous acid
e) Calcium bromide
Answer: a) Copper(II) nitrate :Cu(NO3)2
b) Diphosphorus trisulfide: P2S3; Dinitrogen tetrasulfide: S4N2
c) Sodium periodate: (metaperiodate) NaIO4
d) Nitrous acid: HNO2
e) Calcium Bromide: CaBr2
3. Which of the following is the correct order of increasing pressure?
a) 100 mbars < 100 torr < 100 inches of w...
2 Pages (500 words) Coursework

Module 7 Crisis Intervention

...Sexual Assault in the US Military In almost 3,200 female military personnel reported sexual assault in the USA. There are actually many more, or over three (3) times more of such incidents because, according to the Department of Defense, 86% don’t report the matter to their superiors out of fear that their career will be jeopardized (Watson, Julie 2012). The very recent, August 2012, YouTube Series was said to be realistic in the presentation of sexually assaulted females in the military. It was approved by the government for the purpose of discouraging future sexual assaults in the military. The reasons for not reporting sexual assaults, although those violated wanted to, also included minor punishments for those military men who...
2 Pages (500 words) Research Paper

Summary Module 7

...Module 7 One Lord Jesus Christ Proclaiming the word in unity worldwide Jesus Christ while still on earth instructed the disciples and all the apostles to go in the world to spread the gospel and baptize people in the name of the Father. The proclamation by the Catholic universal church is the previous command of Jesus that date back from the apostle creed. Preaching is currently an obligation to everyone according to Paul as stated in 1Corinthians. The proclamation by the church and inter-religious dialogue follows the teaching of Jesus as the way, the truth, and the life to everyone as per the book of john. The proclamation should follow both the theological and philosophical nature to shade the light on the truth by reducing... 7 One Lord...
2 Pages (500 words) Essay

Marketing Environment Module

In order to decide and coordinate various activities related to the production and selling of a product, a company needs a well-designed marketing plan. As such, it can be seen that the selling abilities and profitability of a company depend on the effectiveness of its marketing policies and strategies. “Marketing is a social and managerial process by which individuals and groups obtain what they need and want through creating, offering and exchanging products of value with others”. (Kotler p.6).
The marketing plan and strategies of a company will largely depend on the Marketing Environment of the area where the business is operating. Marketing Environments are the factors or forces which influence the decision maki...
24 Pages (6000 words) Assignment

Module Employment Law of Human Resource Management in UK

After an in-depth analysis of the case study and the pertinent laws, it has been found out that Maggie has causes of action for dismissal, discrimination, victimization, and bullying. She cannot claim for a five-week holiday leave because the four-week given to her by the company is sufficient compliance with the law. She is justified in refusing to load materials unto the vehicle because she is a clerk, it is discriminatory and the loading area is dangerous without sufficient health and safety equipment installed. The course of action that Maggie should undertake are also laid out, including the persons or concerned agencies she can go for assistance and advice with regard to her claims and causes of action (like bullying).
Th...
14 Pages (3500 words) Essay

Victorian 7-10 English Curriculum and English-Literacy Syllabus

... the riot act, ‘Opinion’. The Australian, p. 19. Cormack, P. and Green, B. (October 2008). “Curriculum history, ‘English’ and the New Education; or, installing the empire of English?” Pedagogy, Culture & Society. Vol. 16, No. 3, London: Routledge. p. 253–267. Green, B. (2006) “English, literacy, rhetoric: changing the Project?” English Education. 40 (1). New South Wales: Charles Sturt University. pp. 7-19. Pennell, B. (2010). “Curriculum Method 1: English”. EML441 Module 1. New South Wales: Charles Sturt University. Sawyer, W. (1998). “Board of Studies HSC Syllabus review 7/3/98”. BOS NSW English Forum 1998. New South Wales: Board of Studies. Sawyer, W. and McFarlane, K. (2000). “Reviewing English in Years 7-10: A Report...
10 Pages (2500 words) Term Paper

Portfolio Project (350 Points) The Portfolio Project is due at the end of Module 8. Read the following description carefully. Choose a topic or issue in which digital media play a significantly influential part. Provide the following elements to complete

...Digital media and Culture Annotated Bibliography Bailey, M., & Redden, G. . Mediating faiths: Religion and socio-cultural change in the twenty-first century. Farnham: Ashgate. This book serves as guide to the neglected aspect of culture in relation to the digital media influence. It portrays the significant abilities that the media has in the shaping of ideas and in the scramble for more faithful by religions. A book reflects on the greater revolutions that bring understanding to the religious culture. It illustrates the adaptation of technology in to the cultural developments especially delving on religion. Lastly, it reflects on how the digital aspects have influenced the rise of secular religions with its popularization... media and...
13 Pages (3250 words) Term Paper

Lab Report on false memory

...FALSE MEMORY Nature of memory can lead to continued problems that can be incredibly tricky. This research paper discusses issues on false memory following the Deese Roediger-Mc Dermott procedure. This is a procedure mostly used in the cognitive psychology in the study of humans’ false memory. Pioneered by James Deese, this paradigm entails a representation of a list containing related words where an individual is expected to remember as many of the words as possible. Prototypes in the DRM paradigm are distinguished in mannerisms of not shown or shown as in the case of any other word. In this paper, it is clear that the individuals used remembered the non-represented words, but related words simply because they had similar... MEMORY Nature of ...
8 Pages (2000 words) Essay

New Product Module-Design Thinking, Pathway-Business and Marketing

...“New Product" Module-Design Thinking, Pathway-Business and Marketing Table of Contents Introduction 2 Discussion 3 The Product Chosen 3 The Chosen Company 3 Design of the Product 4 Innovativeness Involved with the Product 6 Competitive Advantage That Can Be Gained By Norton Motorcycle Company by Manufacturing the Proposed Product Design 7 Conclusion 9 References 10 Introduction With the advancement of technology in the contemporary business environment, companies operating in the global and domestic markets need to strategize their moves in an efficient manner. This would eventually enhance their sustainability for a longer time period in this competitive landscape. Arguably, it is the reputation of the companies, which enables them...
8 Pages (2000 words) Assignment

Literature Analysis of Genesis Chapter 7, Verses 11 to 29 of the Old Testament

...Written Text Principles and Patterns Assessed Assignment 2 Essay Biblical text taken from Genesis Chapter 7, Verses 11 to 29 of the Old Testament. Introduction According to linguist Roland Barthes, "language is never innocent" (Irena 1993, p.245). Every oral and written discourse inevitably has a purpose. It is this purpose or goal to put in front of the listener or reader what the speaker or the writer wants to convey which makes language a web of symbols; often understood or imposed on the listener with a purpose of establishing a position in the discourse. Knowing this, the text in question is a written religious discourse taken from Genesis Chapter 7, The Old Testament. The language used in this text is meshed with metaphors...
7 Pages (1750 words) Research Paper

Its actually a LAB REPORT for Organic Chemistry 1

The three types of water assessed for purity in terms of their chemical compositions included Tap Water, Dasani® bottled and Fiji® bottled water. It was observed that bottled water contained more impurities than tap water, and that water treatment reduced the amount of impurities in the water. It was concluded that tap water was a safe and cheap source of drinking water.
Water quality is a term that illustrates the state of water. It encompasses the chemical, physical, biological and radiological attributes, usually with respect to its suitability for a particular purpose (Diersing, 2009). Water is considered contaminated if it contains certain substances to the extent that makes the water unsuitable for a given purpose (Ofwa,...
7 Pages (1750 words) Lab Report

Reading response #7-15

...Reading through this topic of phonology, I found it both interesting and challenging. I never imagined that the issue of pronunciation experienced by native and non-native will one day be a topic of controversy. Also, it was good to learn terms like (BES) & (MSE) in this ways Jenkins has answered to my question, which was about the native speaker in week, 6 (regarding to my daughter). There is an interesting point I want to mention it on page 7 Smithy stated that ‘English belong to the whole world no matter who you are’ (Smithy, 1976; pg. 7). In referring to this statement, I disagree with what Smithy stated because I think it is not right to conclude that English is being distorted by allowing non-native accent of different dialects...
2 Pages (500 words) Essay

Behavioral Pharmacology Lab Experiment

...Behavioral Pharmacology Lab Experiment ABSTRACT Behavioral pharmacology is a maturing science that focuses on drugs and human behavior. It is also referred to as psychopharmacology or neuropharmacology. Behavioral pharmacology seeks to check the behaviors of various organisms and come up with solutions for humans. Major drug in treatment of behavioral disorder contain Lithium Chloride (LiCl) and, so far, there are quite a number of successful cases. Notably, rats and guinea pigs are used as test subjects in most of medical tests and this experiment was in not exceptional. Researches carried out in behavioral psychology target mind altering drugs and their effects on the human behavior. This laboratory experiment focuses on various...
9 Pages (2250 words) Article
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic Chem lab module 7 for FREE!

Contact Us