chemistry assignment 1

Introduction

Chapter outline.

Your alarm goes off and, after hitting “snooze” once or twice, you pry yourself out of bed. You make a cup of coffee to help you get going, and then you shower, get dressed, eat breakfast, and check your phone for messages. On your way to school, you stop to fill your car’s gas tank, almost making you late for the first day of chemistry class. As you find a seat in the classroom, you read the question projected on the screen: “Welcome to class! Why should we study chemistry?”

Do you have an answer? You may be studying chemistry because it fulfills an academic requirement, but if you consider your daily activities, you might find chemistry interesting for other reasons. Most everything you do and encounter during your day involves chemistry. Making coffee, cooking eggs, and toasting bread involve chemistry. The products you use—like soap and shampoo, the fabrics you wear, the electronics that keep you connected to your world, the gasoline that propels your car—all of these and more involve chemical substances and processes. Whether you are aware or not, chemistry is part of your everyday world. In this course, you will learn many of the essential principles underlying the chemistry of modern-day life.

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• Authors: Paul Flowers, Klaus Theopold, Richard Langley, William R. Robinson, PhD
• Publisher/website: OpenStax
• Book title: Chemistry 2e
• Publication date: Feb 14, 2019
• Location: Houston, Texas
• Book URL: https://openstax.org/books/chemistry-2e/pages/1-introduction
• Section URL: https://openstax.org/books/chemistry-2e/pages/1-introduction

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Browse Course Material

Course info, instructors.

• Dr. Kimberly Berkowski
• Prof. Sarah O’Connor

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As taught in.

• Organic Chemistry

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Organic chemistry i, assignments.

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Module 1: Fun with Dimensional Analysis

Module 1 overview, what you’ll learn to do: use dimensional analysis, significant figures and scientific notation to take measurements, convert between units and perform calculations, learning objectives.

After completing this week’s assignments you will be able to:

• Convert numbers from regular notation to scientific notation.
• Perform calculations to the correct number of significant figures.
• Perform calculations using numbers with SI units.
• Convert between base units and units containing prefixes.
• Perform calculations using dimensional analysis.
• Become acclimated with common laboratory equipment

LEARNING ACTIVITIES

*All students are expected to participate in the completion of the prelab assignment regardless of whether the assignment is an individual or group assignment.

*Prelab   quizzes must be completed prior to coming to lab for a student to be admitted to class.  

• College Chemistry 1. Authored by : Jessica Garber-Morales . Provided by : Tidewater Community College . Located at : http://www.tcc.edu/%20%20 . License : CC BY: Attribution
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Chemistry: Assignment Research

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• Structure Drawing Tools and Nomenclature
• Information Competencies for Chemistry Undergraduates (Wikibook)
• Stages in the Research Process
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Introduction

This guide to basic assignment research outlines a simple but effective approach to finding information for your assignment. It is based on the resources described elsewhere in this subject guide and on the UC Library web site. Depending on your topic and your level of study, you may need to rearrange or review these steps where necessary

Check the rest of this subject guide carefully for additional subject resources and, where available, appropriate topic guides

1. Define your topic

Make sure you understand the topic. Identify the main concepts or keywords in your question to help you develop a search strategy.

2. Gather background information

Use dictionaries and encyclopedias to find definitions and background information. Articles from specialised subject encyclopedias are authoritative and often substantial

Read more on

• Dictionaries, Encyclopedias and Handbooks for Chemistry

3. Think about what information you need

• How much information do you need? Lecturers often give guidelines on the number of sources you should use
• Do you need current information or is older material relevant? Sometimes you might need both, as you might have to give both the historic background and the current situation of a topic
• Do you need primary sources that give an original account of research, or secondary sources that are interpretations of someone else's work?

If you do not understand what you have to do for an assignment, ask your lecturer, your tutor or someone at the Academic Skills Centre

4. Find books

Search the library catalogue

• Check for books on High Demand .
• Use Title and Keyword anywhere searches to find additional material.
• When you find a useful title, click its subject headings to find books on similar subjects.

Read more on:

• Finding Chemistry Books and Ebooks

5. Find journal articles

6. Find information on the Internet

• a government department (.gov or .govt.nz)
• an academic (.edu or .ac.nz or published in a reputable journal)
• a business (what are they selling?)
• or a random non-expert?

Use Google Scholar to find reliable journal articles, or the Advanced Search features of Google to restrict your search to results from more reputable sources.

• Web searching

7. Evaluate your sources

• Critically Analyzing Information Sources (Cornell University)
• How to spot fake news .

8. Cite your sources

• Citing your sources

9. Write your assignment

See our writing guides page for books that have useful hints for writing on technical subjects.

Visit the  Academic Skills Centre  for workshops and/or personal help.

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2.1: Pre-lab assignment

• Last updated
• Save as PDF
• Page ID 401633

• Kathryn Haas
• Duke University

In this module, you'll develop a crucial skill: the accurate use of volumetric pipettes and volumetric flasks for solution preparation. To get ready, read all of the contents of Module 2 and watch the videos below to learn how to use the volumetric glassware correctly.

Pre-Lab Assignment

• Read the contents of this module
• Download the example calibration template (Excel document), open it, and examine its contents (it is linked within the reading assignment in this module and copied here for convenience:  Link for Duke Students ).
• Draw the structure of bromocresol green in its basic and acidic forms. Which is the form you will measure, and what is the wavelength used to monitor its concentration?
• Transcribe a table into your notebook so that you have an organized place to record absorbance readings. Leave room to record three absorbance readings for each solution F through B (you will read them backward, in the order F, E, D, C, B) and to record the average and standard deviation of those readings. You will also need a place to record readings for the "control" solution and the "unknown solution".
• Calculate the molarity of bromocresol green in each solution. ( Remember: \(M_1V_1=M_2V_2\).) Also calculate the error associated with each solution's concentration using propagation of error. ( Hint: you'll need to calculate the error in the original stock solution first. Then calculate the error for each diluted solution using the precision of the volumetric glassware. )

You should complete the above tasks prior to the start of your laboratory period.

Instructions

Watch the following videos. The first two videos explain the correct use of volumetric pipettes and bulbs. The third video explains the correct use of volumetric flasks. And the fourth explains how to use automatic pipettes.