PH

pH Titration Practical Write Up: Introduction: This experiment includes a standard solution, which according to Lewis, R. and Evans, W. “is a solution of known concentrations”. They also stated that “the procedure in finding the concentration of a solution is called volumetric analysis. It involves reacting a solution of known concentration with one of the unknown concentration, in order to determine the equivalence point”. Titration is a technique where one reactant is slowly added to a second

----------- --------------- = 0.03 mol HCl 1000 mL 1 L Conclusion: 1. Describe the graph of pH values over the course of the reaction in Part II. Was the change in pH consistent over the course of the reaction? Do your best to explain the reason for the shape of the pH curve in your own words: Yes, the change in the pH curve increases for each trial, and in consistent in its growth. I believe this was because of the increased amount of NaOH. 2. Why

activity of the enzyme catecholase in different pH levels as well as its absorbance in differently concentrated solutions. A spetrophotometer was used to measure the absorbance of the enzyme catecholase in different pH solutions as well as to measure the absorbance of catecholase in solutions with different concentrations of potato juice and phosphate buffers. Absorbance of the enzyme catecholase was at an optimum level when pH was close to neutral. When pH was acidic or basic, the catecholase was less

The Effect of pH on the Activity of the Enzyme Amylase Aim :- To find the effect of pH on the activity of the enzyme amylase. An enzyme is a type of protein found in all living cells. Enzymes act as biological catalysts, breaking down substrates without needing a high temperature, allowing all the chemical reactions of metabolism to take place, regulating the speed at which they progress, lowering the activation energy and providing a means of controlling individual

The purpose of this investigation was to determine the relationship between pH and water hardness. Water samples from above the Mount Morgan mine site and below the Mount Morgan mine site were also compared. 8.1 Analysis of the Data It was hypothesised that the water sample from above the mine site would be of better water quality than the sample from below the mine site. It was found that this was, in fact, the case. As seen in Table 7.2, the above sample had lower acidity, hardness and conductivity

Joshua Kwon Sep 19, 15 Biology p 4 How Do Changes in Temperature and pH Levels Affect Enzyme Activity? Lab Report In biology class, we’ve learned that sugars produce energy and to use sugars to gain energy, an organism needs a proper enzyme should exist to break it down the chemical bonds of the sugar. Enzymes and proteins are important in organisms because they are involved in most chemical reactions that take place inside of an organism. Our example of an important enzyme was catalase

How Does Diet Affect the pH of a Body? This experiment will investigate if small changes in my diet will alter the pH of my saliva compared to the 10 other subjects I will test it on. The objective of this experiment tests how the little changes in my diet and others affects the pH of saliva. Well, since my question is how my diet affects pH, I already know a few things. There are two possible types of food that affect the pH of a body, alkalizing and acidic foods. Alkalizing foods include: apples

but when you abbreviate it, it comes out to be better known as pH. Potential Hydrogen (pH) is the measure of any solutions hydrogen-ion concentration. The range for pH is generally from zero to fourteen, with seven being neutral. If you measure any solution, if it is lower than the neutral amount of seven than that would be considered as it being more acidic and having less oxygen in its fluid but if it is higher than seven on the pH reading it will be considered as being oxygen rich and contains

purpose of this project was to discover how the pH level affects corrosion rate. The hypothesis was if the pH level affects the corrosion rate, then the lower the pH level is quicker the corrosion rate would be. This will happen because liquids below the pH level of 7 possess stronger acidic attributes. The effect of pH level on corrosion rate was determined by depositing a copper penny in each of three plastic cups, and then three different liquids by their pH levels, were assigned to be displaced into

Abstract Environmental pH influences and determine the shape of enzymes. Because of their optimum pH, enzymes have points of high and low activity. pH activity was measured to observe how amylase and catechol oxidase work together to breakdown starch in salivary glands. It was hypothesized that there would not be amylase activity when exposed to an acidic or basic pH environment. Therefore, amylase has an optimal pH level where activity is most active. It was suggested that the rate of reaction