Based on the values you calculated above, which antacid is the strongest / weakest on a single-dose basis? Please explain.…
Enzymes are biological catalysts. They work by lowering the activation energy needed to initiate a chemical reaction. Enzymes work within an optimal temperature and optimal pH. Enzymes are highly specific for a single substrate. The Enzyme is usually much larger in size than the substrate it binds to. In some cases, an enzyme requires something called a cofactor to begin the chemical reaction. There were four different experiments that were executed in the enzyme lab. Experiment 7.1, the first experiment, was performed to test the effect of temperature on enzymatic activity. Based on what I know about the effect of temperature on the enzymatic activity of lactase, if the lactase used in today’s lab was extracted from human cells, I hypothesize that the optimal temperature for lactase to be in is around 37 degrees Celsius, which is the average human body temperature. The second experiment performed, experiment 7.2, tested the effect of pH on enzymatic activity. Based on what I know about the effect of pH on the enzymatic activity of lactase, if the lactase used in today’s lab was extracted from human cells, I hypothesize that the optimal pH level is 7, which is the average pH level in humans. Experiment 7.3 tests enzymatic specificity. Knowing that lactase is specific for the substrate lactose, lactase will only bind to lactose and not work with the other substrate used in this experiment, maltose. The last experiment of the lab, 7.4, was done to determine the cofactors of the enzyme, lactase. I hypothesize that EDTA, a cofactor inhibitor, will have a negative effect on the reaction and lower the amount of glucose that could possibly be produced if EDTA was not present.…
Controlled variables: Same amount of: water drops, corn , milk , solution and the type of water.…
|Dependent variable |The dependent variable is the amount of water each brand of paper towel absorbed. |…
These medicines are one types of remedy called antacids. These medicines will neutralize existing stomach acid through basic chemical reaction. Using the medicines helps relieve heartburn, sour stomach or indigestion. Remember not to use these medicines if you have a high blood pressure because it’s high sodium content.…
Research Question: This investigation will determine the how the amount of water (independent variable) affects the amount the amount of time (dependent variable) it takes for the Alka-Seltzer to dissolve.…
* Independent Variable: I will be changing the ball size. * Dependent Variable: The height of the bounce. * Controlled Variable: The height that I will drop the balls at.…
The independent variable in this lab is the molarity of sucrose each dialysis bag is filled with. The time (30 minutes), the temperature (23C) and the type of dialysis tubing used are all constants.…
Controlled variable: ~ ml’s of copper sulphate per dish, the same dishes, the volume and concentration.…
The dependent variable for this investigation is the reactivity of each metal as measured by the occurring of chemical reactions between each combination of three solutions (0.1mol/L) and three metals. Recall that there are four common clues that indicate whether a chemical reaction has occurred. These include a change in colour of reactants, a formation of a precipitate, a given off of odour and a given off of heat/light.…
People who live in larger cities are more likely to suffer from stress, depression, and problems with emotions more than those who live in a rural area.…
Once the final group is selected, they will be split up by grade and will be administrated another diagnostic test, similar to the original ones they originally took. This is the first time the kids will take it out of thirteen trials, making their scores the dependent variable. The independent variable will be the amount of soda consumed by the children.…
Acid rain has proven to be a big problem for Connecticut. It has had a great impact on builders, wildlife, and the water sources. Acid rain has many components in it such as pollutants from plants to sulfuric acid from burning coal.…
For this lab, we had to figure out which antacid was the most effective out of all 3 of them. To figure out which one was the most effective, the antacid which took the most amount of drops of Hydrochloric Acid (HCl) to neutralize the antacid would be most effective. Based on the results, Life Brand Milk of Magnesia was the most effective out of the three antacids because it took 120 drops of hydrochloric acid (HCl) to neutralize the antacid. The active ingredient in Life Brand Milk of Magnesia is magnesium hydroxide (“Nonprescription Medicines and Products - Antacids and Acid Reducers”). Magnesium hydroxide is a strong base with a pH value of 12 (“Strong and Weak Acids and Bases and Their Salts”). A chemical equation to show the reaction between the active ingredient and hydrochloric acids would be: Magnesium Hydroxide + Hydrochloric Acid→ Magnesium Chloride + Water. As an equation it would be:…
2.)My independent variable was the amount of soil and salt that was put in the coffee filter.…