Acid-base homeostasis

CONCLUSIONS: The purpose of this experiment was to find the concentration of the unknown base (NaOH) through a titration. In the experiment, it took 0.95 mL of NaOH with a concentration of 0.53 moles to neutralize 5.0 mL of a 0.100 M of HCl. In the expected result, the concentration of the NaOH was 0.50 moles. The percent error for the lab was only 6%, which means the lab had a fairly high accuracy. Differences between the expected results and the actual result would be caused by the sources of…

around eight, or in other words the endpoint of a solution. It also allows us to see a physical change, thus resulting in a more accurate measure of how much was titrated. Citric acid is a weak acid, making it best titrated by using a strong base, such as sodium hydroxide. The combination of a weak acid and a strong base would result in an endpoint that corresponds to the range of phenolphthalein indicator approximately a pH of eight. Image A Phenolphthalein is composed of C14H20O4, as shown in…

This paper describes the process by which a three-component mixture was separated and identified. The mixture was separated with the aid of a separatory funnel and various solvents acids and bases. The compound was found to be comprised of meta-nitroaniline, naphthalene, and benzoic acid / 2-napthol. All three of them are organic compounds with melting points in the order they were listed 111-114, 79-82 and 121-122/121-123 °C. the percent yield of each component was also calculated at the end…

3.2. Chemical quality parameters and pH value:- 3.2.1. Chemical quality properties, pH values and total plate count (TPC):- Total volatile basic -nitrogen (TVB-N), the peroxide value (PV), pH and total plate count (TPC) are good index to determine the freshness and quality of fishes and their products. Data presented in Table (4) show the values of TVB-N, PV,…

light gray color and the strips of zinc added to solution were approximately 5 cm. When zinc was tested with water there were no noticeable characteristics of a reaction occurring, such as bubbling or a color change. When zinc was added to the weak acid H2SO4, at first there was no noticeable reaction, however,…

levels fluctuate from 6.0 before exercise, to 4.5 immediately after exercise, to 5.0 six hours after exercise. This informs Tracey that Max’s kidneys are working to level off his pH to normal levels over time. During exercise, the body produces lactic acid, a waste product which causes the pH to drop. The kidneys release more hydrogen ions which cause the pH to decrease and make urine more acidic while the blood becomes more basic. After exercising, the kidneys don’t release as many hydrogen…

As you can see, the data recovered from this experiment is very unusual. This is the interpretation and analysis the experiment regarding the cleaning power of the chlorine bleach produced by Clorox and laundry detergent produced by Oxiclean. This interpretation is essential to understand the data and how effective each of the independent variables in this experiment are. As an analysis, there were many key points that made this data relevant. Regarding the coffee, both of the cleaners did quite…

With the acid, HCl, the pH of the tap water went from 7 to 1.5 after 30 drops, indicating that the concentration of hydrogen ions increased significantly. With the base, NaOH, the pH of the tap water changed from 7 to 12 after 30 drops, indicating that the concentration of of hydrogen ions decreased significantly. These changes occurred in the tap water because there are no chemical buffers present in water. In the potato homogenate, when 30 drops of HCl were added the pH changed from 6 to 3.5…

and even cars (webprojects.edu, 1). Acid rain is something humans should be concerned about in the twenty-first century due to our advancements in technology. The majority of the United States suffer from acid rain and as a result, many communities are impacted making water unsuitable for drinking and the environment around them damaged. Despite the fact that many people think acid rain isn’t a big threat to the world, damages caused by acid rain can be…

This chemical reaction involves neutralization, where an acid and base react to produce a neutral solution of salt and water. As this information is provided, the known concentration of NaOH(aq) is 0.25M. It is necessary to rinse out the burette with sodium hydroxide solution before starting titration, as the concentration of the base can be affected by the water used to clean the burette. At the same time, when cleaning the burette it may not have been washed thoroughly . By rinsing with…