Hydrogen peroxide

According to PubChem (2015), hydrogen peroxide (34.01468 g/mol) consists of two hydrogen atoms and two oxygen atoms that can be seen in liquid and powder form. The liquid form is visible to the human eye as a colorless liquid with a clear odor that could be described as irritating or distinct. The aqueous molecule…

found in beef liver, and will be discovered by the number of oxygen bubbles through the degradation of hydrogen peroxide. Hypothesis The higher the pH level, the more production of oxygen bubbles in the solution. Variables Could affect activity of catalase - Temperature of reactant vessel - Concentration of Hydrogen Peroxide/Catalase - pH level of Hydrogen Peroxide - Competitive/Non inhibitors/obstacle Independent Level of pH in solution Dependent Amount of…

chemiluminescence by acting as a catalyst with hydrogen peroxide. When AgNPs interact with hydrogen peroxide they cause the peroxide to degrade into superoxide and hydroxyl radical, which also react with luminol to form 3-aminophthalate (Equations 2-5) [13]. The further degradation of hydrogen peroxide into other reactive oxygen species promotes higher fluorescence intensity. Figure 5 shows the increased fluorescence intensity of luminol, AgNPs and hydrogen peroxide in solution. However,…

The experiment began with a reaction of a 1cm3 cube of lamb liver and 5mL of hydrogen peroxide solution being put in test tubes in a beaker filled with 10℃ water until the temperatures of the liver and hydrogen peroxide were 10℃ also. The liver was put into a 100mL measuring cylinder and the hydrogen peroxide was also poured in as the timer was started. After twenty seconds, several millilitres of froth had been produced from the chemical concoction. This froth was recorded into a results table,…

harmful hydrogen peroxide into a oxygen and water (2H2O2 ----> 2H2O + O2). When this reaction occurs in the experiment, then it will be seen that oxygen gas bubbles escape and create foam like. From here, we would like to see how temperatures that occur in the environment affect a reaction of an enzyme towards a substrate. Research question How does different temperature (20°C, 30°C,40°C,50°C,60°C) affect the catalese enzyme reaction rate present in a liver, having a substrate as hydrogen…

denatured by the high temperature, but in test tube #2, there was no denatured occurred, so the catalase could convert hydrogen peroxide into water and oxygen. The optimal condition for catalase in this experiment is the temperature should be not too high, so the catalase can’t be denatured. In the experiment 4.4, we could see the effect of pH on enzyme activity by adding 2ml hydrogen peroxide and a small piece of liver to each test tube and adding 20 drops of acidic solution into tube #1,…

We were asked, "Where does the oxygen (O2) come from?" Hydrogen peroxide (H2O2), the liver, or both? The oxygen comes from hydrogen peroxide. The substance in the liver interacts with the hydrogen peroxide. The hydrogen peroxide is altered when two substances are combined. The oxygen gas, as a product, comes from the hydrogen peroxide. Enzymes are big proteins that speed up the rate of a chemical reaction by moving as a catalyst. A catalyst provides the environment for the reaction to occur.…

catalase affect the initial rate of formation and total amount of O2? Introduction In water, hydrogen peroxide converts naturally into diatomic oxygen gas and water through the collision of water molecules. However, this reaction occurs at an extremely slow rate. With the presence of an enzyme, catalase, the reaction occurs at a much faster rate. This is because catalase binds with the hydrogen peroxide substrate at its transition state to weaken the covalent bonds, reducing the energy and…

harmless chemicals. Our body contains hundreds of enzymes in our cells and this lab will show us how they interact with parts and materials of our bodies. The enzyme we will be focusing on is called catalase. It’s job for the body is to break down hydrogen peroxide a harmful substance into two harmless substances oxygen and water. For the first part of our lab part A we were focusing on observing a normal catalase reaction. We used a normal piece of liver to start it off the rate of reaction…

Weakness Explanation Suggestion(s) for improvement Not measuring the temperature of the liver cubes that are the sources of the enzyme catalase. Although the hydrogen peroxide solutions were at the desired temperatures, it was uncertain whether their paired liver cubes had the same temperatures. This places concern on whether the froth height was close to being accurate, hence reliable. If the temperature of a liver were lower than the desired temperature, the enzymes would be less likely to…