Chemestry Assessed Practical :: Papers

Chemestry Assessed Practical Variables The variables for this practical are 1. The metal that it used- magnesium, copper or iron. 2. The list of metal that is used- each occur as long as it is divisible by 0.5 grams. 3. The concentration of the dissolving agent of the consequence- molarity 0.1M or 0.5M. I am going to change the amount of metal. Fair Test To make this a fair test I must keep everything constant except the variable (the amount of metal). But redden the variable must be changed at a consistent rate (going up in 0.5g). Method Apparatus List Copper Sulfate final result (0.5M). Powdered magnesium (15g in total). 2x Beaker. Measuring cylinder. Safety goggles. Measurements I am going to use 50cm of copper sulfate and then us the following measurements of pulverize magnesium 0.5g, 1.0g, 1.5g, 2.0g, and 2.5g. =================================================================== Safety I go out wear safety goggles throug hout the experiment, I allow be careful when I pour the beginning and when I am shaking it I result shake it gently. Equations IMAGEMagnesium + Copper Magnesium + Copper Sulfate Sulfate IMAGEMg + CuSO4 MgSO4 + Cu Method I provide measure out 50cm of copper sulfate solution (0.5M) in a measuring cylinder then add it to a polystyrene cup, as polystyrene is a magnanimous conductor of heat. Before I add the magnesium I will wait until the copper sulfate solution is at a consistent temperature and lead and record the start temperature. I will then add the desired amount of magnesium (as it already weighed out for me) to the copper sulfate solution. I will observe what happens and measure the temperature change from the start to 1 minute and to 2 minutes. I will repeat this twice and then work out an number temperature change for each separate amount of powderize magnesium. If I get a result that is completely different to the other one then I wil l record this as aChemestry Assessed Practical Papers Chemestry Assessed Practical Variables The variables for this practical are 1. The metal that it used- magnesium, copper or iron. 2. The amount of metal that is used- any amount as long as it is divisible by 0.5 grams. 3. The concentration of the solution of the solution- molarity 0.1M or 0.5M. I am going to change the amount of metal. Fair Test To make this a fair test I must keep everything constant except the variable (the amount of metal). But so far the variable must be changed at a consistent rate (going up in 0.5g). Method Apparatus List Copper Sulfate solution (0.5M). Powdered magnesium (15g in total). 2x Beaker. Measuring cylinder. Safety goggles. Measurements I am going to use 50cm of copper sulfate and then us the following measurements of powdered magnesium 0.5g, 1.0g, 1.5g, 2.0g, and 2.5g. =================================================================== Safety I will wear safety goggles throughout the experiment, I will be careful when I pour the solution and when I am shaking it I will shake it gently. Equations IMAGEMagnesium + Copper Magnesium + Copper Sulfate Sulfate IMAGEMg + CuSO4 MgSO4 + Cu Method I will measure out 50cm of copper sulfate solution (0.5M) in a measuring cylinder then add it to a polystyrene cup, as polystyrene is a pestilential conductor of heat. Before I add the magnesium I will wait until the copper sulfate solution is at a consistent temperature and sire and record the start temperature. I will then add the desired amount of magnesium (as it already weighed out for me) to the copper sulfate solution. I will observe what happens and measure the temperature change from the start to 1 minute and to 2 minutes. I will repeat this twice and then work out an norm temperature change for each separate amount of powdered magnesium. If I get a result that is completely different to the oth er one then I will record this as a