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Red T-Shirt

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Submitted By flove
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Lab Report: Scientific Method
Your Name: ___________Jose Sebastian Flores Vera______________________
Purpose of this Lab
What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain? This lab is for the application and understanding of the scientific method. The propose of this lab helps students to learn the metric system, its units, and the conversion from the English system to the metric system.

Hypothesis
After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water?
Well, the addition of salt to tap water raises the boiling point of the water in a steady and constant way. Because the addition of the salt increases the number of atoms, then it will take a higher temperature to reach the boiling point.

Experimental Design
List the materials used in this lab, and the procedure you followed.
Materials:
1. Tablespoon
2. Sharpie
3. Thermometer
4. Measuring cup
5. Kitchen stove
6. Several small pots
7. Table salt
8. Tap water
Procedure (list steps in the order in which you performed them):
1. Pour 2 measured cups of tap water in the pot
2. Heat it up, record the boiling point with the thermometer.
3. Discard the water.
4. Pour 2 measured cups of tap water in the pot.
5. Add a tablespoon of salt.
6. Heat it up, record the boiling point with the thermometer.
7. Repeat from step three two more times, adding a tablespoon of salt more each time.

© KC Distance Learning

!

Data
Record the data you collected in the lab. (The data table and the graph.)
Table 2. Boiling point temperatures of various salt solutions.
Beaker/Concentration of NaCl (M)
(°C)

Boiling Point Temperature


Pure tap water
1 tablespoon salt solution

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