Acid rain is a very volatile acid that can degrade just about every building material. It is made by the atmosphere being injected with residue from factories. It makes the pH of the rain seem to drastically change and become more reactive with normal materials. Sulfuric acid seems to have that same effect. Sulfuric acid can react with impales amount of chemicals including many metals, in this case aluminum. The metal aluminum and the chemical sulfuric acid together would lead to unprecedented reactions depending on the molarities of the solutions. “Reactant particles must collide for a reaction to occur, but only a certain fraction of the total collisions have the energy to connect effectively and cause the reactants to transform into products.” (Lewis, 2008). The collision theory will apply to this situation because the more concentration of the sulfuric acid there is being placed on the aluminum, which is the building material, the more collisions will take place of the particles resulting in a more drastic reaction. Acid rain works in the same way as having heavy amounts of acid rain fall at once seem to do more damage do to the concentration coming down more drastically. Overall the effects of acid rain seem to lead to an array of possibly.
Question- What is the effect of the molarities of sulfuric acid on aluminum when molarities are increased?
Based on background research, if the concentration of the sulfuric acid is increased to a higher level then the effects on the aluminum will be much more drastic because of a more volatile reaction. The equation delineates the chemical input and chemical output Al+3 + HSO–> Al( SO)+ H . This output is the reactants solution which is the new substance. The molarities increase will lead to more collisions which are linked to the collision theory as being the source of the reactions volatility. “Reactant particles must collide for a reaction to occur, but only a certain fraction of the total collisions have the energy to connect effectively and cause the reactants to transform into products.” (Lewis, 2008).
Independent variable: sulfuric acid increase (molarities)
Dependent Variable: aluminum (grams)
– Molarities of the sulfuric acid is the independent variable because the degrading the aluminum depends of the molarities of the sulfuric acid.
– The degrading of the aluminum is measured in grams. Using a triple beam balance scale to measure how much the initial aluminum stripes are and after the reaction to see the degrading of the aluminum as an end result.
* Molarities – the concentration of the sulfuric acid is controlled to see which concentration has the greatest effect on the aluminum
* Amount of aluminum – the aluminum is broken up into 3 groups of 10 to be tested by the different molarities of the sulfuric acid.
* 30 stripes of 5(g) aluminum – to test the sulfuric acid on to see the reaction
* 1 molar of Sulfuric acid- to apply to the 30 stripes of aluminum.
* 2 molar of Sulfuric acid- to apply to the 30 stripes of aluminum.
* 3 molar of Sulfuric acid- to apply to the 30 stripes of aluminum.
* Stop watch – to measure the time of the reaction
* Triple beam balance scale – to measure the weight of the aluminum before the reaction and after the reaction to see the degrading effect.
* Weighing tray- to place the aluminum stripes on to place onto the triple beam balance scale.
* Pipette (3) – to get the exact amount of sulfuric acid out of the 100 mL beaker to place onto the 5 gram stripes of aluminum.
* 100mL beaker(3)- to place the sulfuric acid inside
* Safety goggles- to protect eyes from toxic debris.
* Safety gloves- to protect hands from harmful chemicals
* Safety apron- to protect body from dispersed particles.
* Closed shoes – so that no chemicals can burn the skin of the feet.
Photograph of Lab Setup-
1. Apply all the safety materials to the body to avoid any contact with harmful chemicals.
2. measure out five gram stripes of aluminum thirty times using a triple beam balance scale ad a weighing tray.(be sure to minus the weight of the weighing tray to avoid flaw in data.)
3. Place three 100mL beakers in the experimental zone and fill them with 1 molar 2 molar and 3 molar solutions of sulfuric acid and place a pipette in each 100mL beaker.
4. Once you have measured out thirty stripes divide them into three sets of ten stripes each. place one of each in a party dish then use a stop watch to count twenty seconds from when you inject ten drops of sulfuric acid of 1 molar 2 molar and 3 molar onto the aluminum stripes in the party dishes.
5. Once the twenty seconds is over take each stripe and place it on the triple beam balance scale in a weighing tray and measure the terminal amount of aluminum left after the reaction.
6. Record the data onto a table so you can use it for future use.
1. “Collision theory.” Ferlex. 2 July 2008. 31 Jan. 2009 <http://encyclopedia.farlex.com/Collision+theory>.