Understanding and Applying Chemistry

SCI103 Unit 2 Lab Tutorial: http://youtu.be/oeTy0zN3xTg?hd=1

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Assignment: SCI103 Unit 2 Lab Report

Title: Measuring pH Levels

Instructions: Enter the Virtual Lab, and conduct the experiments provided before going out into the virtual field for additional research. Please type your answers on this form. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom.

General Resource Video: https://www.youtube.com/watch?v=ANi709MYnWg

Part I: Answer the following questions while in the Unit 1 lab environment.

For section 1 and 2:
• To test pH of solutions and lakes: Enter the Lab through the third item in the Unit’s MUSE.
• The MUSE can be accessed by clicking on Learning Materials (Unit 2).

Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. Based off of the results obtained in the lab room, fill in the following table:

Solution Number pH from Lab Acid, Base or Neutral? Solution Name (what was in the test tube?)
Solution 1
Solution 2
Solution 3
Solution 4

Section 2: Now that you understand how to read pH measurements, go out into the field to gather pH samples from 3 different lakes to take back to the lab for testing, and answer the following questions:

1. What was the pH level measured at Lake 1?

2. What was the pH level measured at Lake 2?

3. What was the pH level measured at Lake 3?

4. Which two lakes have the highest levels of acidity in their water?

Part II: For the following questions, provide your response in short-answer format (3–5 detailed sentences each). Use the links provided along with this Unit’s activities and resources to prepare your answers.

Look for at least three acids and at least three bases around your home.

For question 5 and 6:

• Use this link as a guide: http://www.ehow.com/list_6930749_acids-bases-found-homes.html
• Watch instructional video (in Unit 2 IP assignment description)
• Review Unit 2 learning materials- In MUSE – first item

5. List and describe the acids you found. What things do the acids have in common?

Three examples of acids are that I found in my home are
a. ________________
b. _______________________
c. _______________

Description (Describe using complete sentences. Some suggestions- what do they contain, what they are used for and why, what are their properties, what is their pH.

a)
b)
c)

Some common attributes of acids:

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