Investigate The Effect Of Acid Rain On Building Materials
Investigate the Effect of Acid Rain on Building Materials
Question:
What is the effect of 6M sulfuric acid (H2SO4) on the corrosion rate of the 3 grams of steel as the amount (number of sprays) of sulfuric acid increases?
Variables:
Independent variable: the number of sprays of 6M sulfuric acid (0, 5, 10, 15, 20, 25 times) to observe its effect on the corrosion rate. Each spray will contain about 10mL.
Dependent variable: The corrosion rate. It will be calculated by measuring the mass of steel after leaving it for one day.
Control: 1) The amount of sulfuric acid sprayed each time. The same sprayer should be used to ensure the same amount is sprayed. 2) Concentration of sulfuric acid is 6M. 3) The initial mass of steel is 3g. 4) Letting the steal sit for a day.
Materials:
Electric balance, six 500 mL beakers, sprayer, six 3g of steel, 100 mL of 6M sulfuric acid
Method:
1) By using the balance, weigh the 3g of steel for each one and the mass of the beaker.
2) Place each piece of steel into a 500 mL beaker and label each beaker.
3) Add 100 mL of 6M sulfuric acid into the sprayer.
4) Do not spray any into the first beaker.
5) Spray the second beaker 5 times with the 6M of sulfuric acid.
6) Repeat the process, but add 5 more sprays each time.
7) Measure the mass of each beaker with steel.
8) Leave the 6 different pieces of steel for a day.
9) Repeat entire process 2 more times to eliminate error.
Analysis:
1) Calculate the change in mass of each piece of steel after leaving it for one day.
2) Graph the change in mass of the steel over the number of sprays.
3) Determine the corrosion rate for each piece of steel.
Question:
What is the effect of 6M sulfuric acid (H2SO4) on the corrosion rate of the 3 grams of steel as the amount (number of sprays) of sulfuric acid increases?
Variables:
Independent variable: the number of sprays of 6M sulfuric acid (0, 5, 10, 15, 20, 25 times) to observe its effect on the corrosion rate. Each spray will contain about 10mL.
Dependent variable: The corrosion rate. It will be calculated by measuring the mass of steel after leaving it for one day.
Control: 1) The amount of sulfuric acid sprayed each time. The same sprayer should be used to ensure the same amount is sprayed. 2) Concentration of sulfuric acid is 6M. 3) The initial mass of steel is 3g. 4) Letting the steal sit for a day.
Materials:
Electric balance, six 500 mL beakers, sprayer, six 3g of steel, 100 mL of 6M sulfuric acid
Method:
1) By using the balance, weigh the 3g of steel for each one and the mass of the beaker.
2) Place each piece of steel into a 500 mL beaker and label each beaker.
3) Add 100 mL of 6M sulfuric acid into the sprayer.
4) Do not spray any into the first beaker.
5) Spray the second beaker 5 times with the 6M of sulfuric acid.
6) Repeat the process, but add 5 more sprays each time.
7) Measure the mass of each beaker with steel.
8) Leave the 6 different pieces of steel for a day.
9) Repeat entire process 2 more times to eliminate error.
Analysis:
1) Calculate the change in mass of each piece of steel after leaving it for one day.
2) Graph the change in mass of the steel over the number of sprays.
3) Determine the corrosion rate for each piece of steel.