Thursday, November 28, 2019

Formal Lab Report Graphing Anaylsis Sample

Formal Lab Report Graphing Anaylsis Paper Fire is a chemical process. Three elements are needed for this process: oxygen, heat and fuel. Without one of those elements a fire cannot start or continue. Purpose: The aim of the laboratory exercise is to determine the time it takes for the flame of a candle to die out. The purpose of the experiment is to observe the burning flame and to determine the rate, in seconds, at which the flame of a candle burns out once its oxygen supplies has been depleted. To obtain the data, several beakers arranging in size will be used to help exhaust the oxygen supply to the flame. The purpose of the Graphing and Estimating lab is to consider what happens to the burn time as the beaker size gets smaller. The objective is to put the acquired data into a form of a graph and to use said graph to predict burn time of an unknown beaker size. Procedure: The Graphing and Estimating lab exercise involves materials such as: a tea light candle, a mall beaker, 150 ml beaker, 250 ml beaker, 400 ml beaker, a 600 ml beaker, a graduated cylinder and a stop watch. The first item at hand to consider is to make sure each beaker being used in the experiment is dry prior to use. We will write a custom essay sample on Formal Lab Report Graphing Anaylsis specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Formal Lab Report Graphing Anaylsis specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Formal Lab Report Graphing Anaylsis specifically for you FOR ONLY $16.38 $13.9/page Hire Writer On a flat surface, light the Andre and wait for a steady flame. Place one of the beakers over the lit candle and start the stopwatch immediately. Observe the amount of time it takes for the flame to die out. Record the data. Repeat this step at least once, and then calculate the average. 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 millimeters. With the data points plotted determine whether a straight line or a simple curve will best represent the data.

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