Essay on Formal Lab Report Graphing Anaylsis

877 Words4 Pages
Angelina Mass-Valderrama
CHM1032 summer ‘12

Graphing and Estimating
Formal Lab Report

Introduction: Today scientists put acquired data into a form of a graph. This said graph is designed to help make predictions and furthermore, study and understand the experiment and its contents at hand. The Graphing and Estimating lab involves just that. The lab is designed to collect data from several tests involving burn time of a candle.
Oxygen, O2, is a kind of gas. A lot of the air we breathe as human beings is oxygen. Which is good since we need oxygen to stay alive. Oxygen is also a primary element in fire. Fire is a chemical process. Three elements are needed for this process: oxygen, heat and fuel. Without one of those
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If the difference between the recorded times are more than 10%, add a third trial. Repeat these steps with each size beaker. Calculate the average time for each beaker and record the data. The next step of the lab exercise is determining the exact volume of the beakers used in the burn time experiment. Fill a beaker to the top with water. Carefully pour the water from the beaker into a graduated cylinder. Reading the meniscus, record the exact volume into a data sheet. Repeat this step with each size beaker until all volumes are recorded into the data sheet. The final process of the Graphing and Estimating lab is plotting the recorded data onto a graph. Using the data recorded for burn time, in seconds, place the data on the vertical axis. Use the horizontal axis for the volume in milliliters. With the data points plotted determine whether a straight line or a simple curve will best represent the data. Now, obtain a jar and determine the volume. Fill the jar to the top with water. Carefully pour the water into a graduated cylinder. Precisely record the data. Using the plotted data on the graph and the simple curve or straight line to predict how long it would take for the flame to burn out on the candle if it was covered with the jar that was just measured.
Results: (Data and calculations)
Figure 1.1 Stated Beaker Size (mL) | Actual Beaker Size (mL) | Burning Time-Trial 1 | Burning Time-Trial 2 | Burning Time-Average | 600 | 628 | 28.3

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