HCl and Mg Reaction Lab

HCl and Mg Reaction Lab - Stephanie Pham HCl and Mg...

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Stephanie Pham HCl and Mg Reaction Lab IB Chemistry SL R. W. Johnson High School January 28, 2010 Candidate ID Number: 003342-005 Design- Instructor Directions: Investigate an aspect of the reaction between HCl and Mg. Research Question: Does the temperature of HCl affect its rate of reaction with Mg? Purpose: The aim of this experiment is to explore the reaction between HCl and Mg. Specifically, the rate of reaction will be examined, or how long it takes for the Mg to be dissolved completely in the HCl. There are a number of factors that can influence the rate of a reaction. However, in this experiment, the temperature is the main variable to be considered in examining the reaction between HCl and Mg. In this lab, HCl at varying temperatures will be reacted with a standard amount of Mg. The reaction will be stopped after a certain amount of time and the mass of the remaining Mg strip will be measured and recorded. The data generated will be tabulated and graphed in order to determine if a trend exists and if there is a relationship between the temperature of HCl and the rate of reaction. Hypothesis: If the temperature of HCl is higher, then the rate of reaction with Mg will be faster because higher temperatures will generate a reaction with more heat. This means that the particles involved will be moving at a faster rate, and that the Mg will be dissolved at a much more quicker rate than if it was reacted with room temperature or cold HCl. Variables: independent variable - temperature of HCl (°C) dependent variable - Mass of Mg within a given time (±0.004) control variables-
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Initial mass of Mg- Mg strip will be measured at 3 cm as a standard for every trial. o Amount of time given to react- 1 minute (60 seconds) o The method used to stop the reaction- HCl will be poured out of the test tube and Mg strip dried with a paper towel. o Concentration of HCl- 1 M o Initial shape of Mg- a strip o Vessel used for reaction- test tube o Volume of HCl- 10 mL in each test tube o Amount of water in beaker- 250 mL Materials and Equipment: Thermometer 2 Kimax USA 250 mL beakers Pyrex Vista test tubes Test tube rack Ruler Paper towels MyChron stopwatch 10 mL graduated cylinder Scissors Plastic weighing trays
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HCl and Mg Reaction Lab - Stephanie Pham HCl and Mg...

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