Webs.anokaramsey.edu



Lab Activity H1

Introduction and Safety

OUTCOMES

After completing this lab activity, the student should be able to:

• pass a quiz with the minimum score specified by the instructor on the safety rules, materials list, and week-to-week expectations associated with laboratory portion of this course.

• identify the components of their laboratory kit.

• use the electronic balance, temperature probe, and data acquisition software that was supplied in the laboratory kit.

[pic]

PROCEDURE

1. Download and review the “Week-to-Week Expectations” available on the same web page as this document (Lab Activity H1).

2. Download and review the “Online Laboratory Safety Rules” available on the same web page as this document (Lab Activity H1).

3. Download and review the “Composite Materials List” available on the same web page as this document (Lab Activity H1).

4. Download and review the “Materials List – By Lab Activity” available on the same web page as this document (Lab Activity H1).

5. View the “Lab H1 Intro Video” available on the same web page as this document (Lab Activity H1). Please note that each lab activity has an introduction video that you are required to view. There will not be a reminder with each lab activity.

6. Open the kit purchased for this course and make sure that all of the Kit Materials specified on the Materials List are present in the kit. Contact the course instructor or the chemistry lab manager on the Coon Rapids campus if anything is missing from your kit. Items listed as durables must be returned in the kit at the end of the course. Consumables may either be kept or returned. If returned, consumables must be clean and usable by another student. Think green – recycle, if possible.

7. Review the Student-Provided Materials on the Composite Materials List and gather together the materials you already have on hand. Make a shopping list and purchase the remainder of the items that you do not have on hand. Everything, except for the red cabbage, may be purchased at the beginning of the course. The red cabbage may be purchased up to 4 weeks in advance of Lab Activity H14.

8. Remove the balance from the kit. Turn it on. Press the “Tare” button to zero the balance. Place a nickel onto the balance. It should have a mass of 5.0 g. If the balance does not work, replace the batteries with a fresh set. Add the batteries to your shopping list, if necessary. Contact the course instructor or the chemistry lab manager on the Coon Rapids campus if the balance does not work with a fresh set of batteries.

9. Remove the six large plastic cups from the kit. Since you will be using these cups in the place of beakers, you may want to add graduations that indicate the approximate volume of liquid inside the cup. Using a graduated cylinder, add 50, 100, 150, and 200 mL water to the cup. Next, use a pen, permanent marker, paint, crayon, or fingernail polish to add marks to the outside of the cup that indicates each of these volumes.

10. The Go! Temp temperature probe that came with your kit may or may not have included Logger Lite software. Even if it did, many computers today are not equipped with a CD or DVD drive. Also, your computer may have a newer operating system that is incompatible with the included software. Therefore, you may download the most up-to-date version of the software from the Content section of your D2L course. Scroll to the end of the Content section to find this software. From there, you may do one of the following:

• (Recommended) Download and install the most recent version Logger Pro for your operating system. Please note that your installation may require a password. The password should be shown on the link within D2L that was used to download the software. Logger Pro is a more robust version of software than Logger Lite and may be used for graphing applications for several labs in this course.

or

• Download and install the most recent version Logger Lite for your operating system. Please note that your installation may require a password. The password should be shown on the link within D2L that was used to download the software.

or

• You are always welcome to try installing the Logger Lite software that came with the Go! Temp temperature probe in your kit. Please note that this version may not work with Windows 7 or with Mac OS X 10.5 or later.

11. Plug the temperature probe into an open USB port on your computer. Open the Logger Pro or Logger Lite application to ensure the software and temperature probe work. The displayed temperature should increase if the tip of the probe is warmed in your hand and decrease if it is dipped into a glass of cold water (you may need to add ice, as cold water from a tap is often the same temperature as the room).

12. When you are ready, take the Introduction and Safety Quiz available on D2L.

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download