# Science Essay

743 WordsApr 29, 20133 Pages
Name: Elizabeth Hackathorn Date: April 14, 2013 Instructor’s Name: Kristina Jantz Assignment: SCI103 Phase 1 Lab Report Title: Measuring pH Levels Instructions: Enter the Virtual Lab, and conduct the experiments provided before going out into the filed for additional research. Please type your answers. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom. Part I: Answer the following questions while in the Phase 1 lab environment. 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: 1. How many drops of wide range indicator will you use…show more content…
When I got the sample of this lake and I tested the pH level I thought it was closest to about 3 or maybe 3.5. 4. What was the pH level measured at Lake 3? Lake 3 is located within a wildlife preserve several miles downwind of Lake 1. When I got the sample and tested for the pH levels I felt it was closest to about 4 or 4.5. 5. Which two lakes have the highest levels of acidity in their water? I personally think that Lake 1 and Lake 3 have the highest acidity in their waters. 6. Based off of the information gathered at each lake, explain why your results may have turned out this way. Well the first lake I believe was so close to heavy population and factories that we effecting the water and during it to acid. Lake 2 was a several miles away and in a remote location that possibly a lot of people don’t know about. Lake 3 was on a wildlife preserve I feel like this one was more acid because there are animals and thing that could be getting in the water and turning it in more acidotic. Part II: For the following questions, provide your response in short-answer format (2–3 sentences each). Use this Phase’s activities and resources to assist you in answering. 7. What is pH? PH is a way to measure the concentration hydrogen ions in a sample. The pH scale is ranged from 0 to 14. PH is always thought of measuring the activity of hydrogen ions. 8. What is a base? A base is something that can accept hydrogen