Chemistry planning and designing lab :: essays research papers

Lab# Date: Topic: The reactivity series Problem: Which of the following metals are more reactive with acids – magnesium, zinc, aluminum, iron, lead, and copper? Hypothesis: Aluminum is the most reactive with acids because it occurs in group III. Aim: To perform a comparative test on which metal is the most reactive with acids. Experiment: A comparative test is done using time to find which metal has the fastest reaction Skill: P & D Apparatus : Equipment: 1. 6 beakers 2. Water 3. Measuring cylinder 4. Watch or Clock Materials: 1. Aluminum foil 2.Copper coin 3.Lead pellets 4.Zinc from a battery 5. Magnesium from Antacid 6. Iron Shavings Reagents: 1. HCl Procedure: 1 Rinse the containers with distilled water. 2. Pour 25cm3 of HCl in each beaker by use of measuring cylinder. 3.Insert each of the different sample metals into a beaker one at a time. 4.Observe and record the amount of time before the reaction stops with clock. 5. Make a table of your observations. 6. Setup a control using water as the reagent. Variables: Independent: Aluminum foil, Copper coin, lead pellets, Zinc from a battery,  Ã‚  Ã‚  Ã‚  Ã‚   Magnesium from Antacid, and Iron Shavings. Dependent: Reaction Time Controlled: HCl Control: This is an identical experiment using water as your reagent. Data: The reaction time for the different metals , to show which is the most reactive in acids. Metals  Ã‚  Ã‚  Ã‚  Ã‚  Reaction Time/seconds in acids. Magnesium  Ã‚  Ã‚  Ã‚  Ã‚   Aluminum  Ã‚  Ã‚  Ã‚  Ã‚   Zinc  Ã‚  Ã‚  Ã‚  Ã‚   Iron  Ã‚  Ã‚  Ã‚  Ã‚   Copper  Ã‚  Ã‚  Ã‚  Ã‚   Prediction: Aluminum will be the most reactive because it is in group 3 which has the least amount of electrons to loose. Results: The results for reaction time of the different metals, to show which is the most reactive in acids.