Factor Effecting Reaction Rates
Abstract
We performed two trials of nine different variables of reactions to determine what increases/decreases reaction rates. The variables we used are hot/cold and room temperature water, a equal mixture of HCL and water, A equal mixture of NaOH and water, either a whole, broken, or finely crushed Alka-seltzer tablet. The fastest rate average was at 0.04 s (finely crushed Alka-seltzer with room temp. water). The slowest rate average is 8.02 s (Alka-seltzer with cold water).
Introduction
The theory of this experiment is to determine what factors or variables affect the rate of a reaction. In this case we used Alka-Seltzer; the reaction is a neutralization reaction of sodium bicarbonate, citric acid and aspirin. The experiment ran through two trials with nine different steps. We used different variables such as warm/cold water, surface area and an acid and base to slow or speed up reaction rates.
Procedure
For safety we wore goggles, gloves and an apron. We used waste jars for the acid/base solutions. We performed two trials and nine different variable reactions. Every reaction had taken place in a film canister. The different variables consisted of mixing hot/cold water and an Alka-seltzer tablet. Room temperature water and a Alka-seltzer tablet. A broken up Alka-seltzer tablet with room temperature water. A finely crushed up Alka-seltzer tablet with room temperature water. Equal parts HCl and water with an Alka-seltzer tablet. Lastly, equal parts NaOH and water with an Alka-seltzer tablet. All reactions occurred in a clean film canister and were timed using a stop watch by the same person every time. We thoroughly cleaned the film canister before each reaction took place.
Results
We ran nine different steps through different variables. The different variables are room temperature water which produced a moderately slow reaction rate at 3.94 s for trial 1 and 3.13 s for trial 2. Cold water at 10 ͦc (trial 1) and 5 ͦc (trial 2)
We performed two trials of nine different variables of reactions to determine what increases/decreases reaction rates. The variables we used are hot/cold and room temperature water, a equal mixture of HCL and water, A equal mixture of NaOH and water, either a whole, broken, or finely crushed Alka-seltzer tablet. The fastest rate average was at 0.04 s (finely crushed Alka-seltzer with room temp. water). The slowest rate average is 8.02 s (Alka-seltzer with cold water).
Introduction
The theory of this experiment is to determine what factors or variables affect the rate of a reaction. In this case we used Alka-Seltzer; the reaction is a neutralization reaction of sodium bicarbonate, citric acid and aspirin. The experiment ran through two trials with nine different steps. We used different variables such as warm/cold water, surface area and an acid and base to slow or speed up reaction rates.
Procedure
For safety we wore goggles, gloves and an apron. We used waste jars for the acid/base solutions. We performed two trials and nine different variable reactions. Every reaction had taken place in a film canister. The different variables consisted of mixing hot/cold water and an Alka-seltzer tablet. Room temperature water and a Alka-seltzer tablet. A broken up Alka-seltzer tablet with room temperature water. A finely crushed up Alka-seltzer tablet with room temperature water. Equal parts HCl and water with an Alka-seltzer tablet. Lastly, equal parts NaOH and water with an Alka-seltzer tablet. All reactions occurred in a clean film canister and were timed using a stop watch by the same person every time. We thoroughly cleaned the film canister before each reaction took place.
Results
We ran nine different steps through different variables. The different variables are room temperature water which produced a moderately slow reaction rate at 3.94 s for trial 1 and 3.13 s for trial 2. Cold water at 10 ͦc (trial 1) and 5 ͦc (trial 2)