Base pair

concentration of acids and bases is controlled so that the pH of extracellular body fluids is maintained within the range of 7.35 to 7.45. The body maintain this balance by a mechanism that generate buffer and eliminate acids and bases. A base is an ion or molecule that can accept or combine with a hydrogen ion and an acid is a molecule that can release a hydrogen. (Grossman, Port, 2014). Acids and bases exist as a buffer system. For example, a mixture of a weak acid can reversibly become base or a mixture of

At the end of the experiment, seven groups also prepared different solutions. The first group was prepared by adding 1 mL of 100 mM HCl to the falcon tube containing 20 mL of PBS and the pH value was decreased from 7.4 which is the pH value of PBS to 6.22. The second group added 1 mL 20 mM HCl into the falcon tube which contain 20 mL PBS and the pH value was reduced from 7.4 to 7.22. The third group added 1 mL 2 mM HCl to the falcon tube containing 20 mL PBS and the pH value was increased fom 7.4

Introduction Solutions are a combination of compounds that have different intermolecular forces, pH, pKa, and other chemical and physical characteristics. These characteristics are critically involved in how molecules interact when placed in the same container. For this experiment, Sodium hydroxide (NaOH) and hydrochloric acid (HCl) was used for the amino acid titration, and potassium hydrogen phthalate (KHP) was used for the standardization of the NAOH solution. The hypothesis for this part of

How will various fruit homogenates buffer against acid? Background This experiment will be testing the buffering ability of two fruits and a root. Pineapple, watermelon and ginger will be tested to determine their buffering ability. The hypothesis is: If hydrochloric acid is added to watermelon, pineapple, and ginger then the ginger will buffer better. The acid will affect the fruit by lowering the pH making them more acidic. Buffering helps organisms to maintain homeostasis. Homeostasis is

solution. This could have been done by adding a large volume of the titrant to the solution, which causes the pH of the solution to be messed up. Another problem that might have occurred was using contaminated lab equipment. This problem would cause a base or an acid to change their pH leading to errors during the lab. However, this problem was prevented by rinsing all glassware with deionized

antacid is correct since it must contain less OH- ion. Therefore, the hypothesis was proven correct. Antacids are weak bases used to neutralize our stomach gastric acid, mainly composed of hydrochloric acid or HCl, through neutralization reaction. Neutralization reaction is when the reactants, acid and base, reacting with each other and produce a products of salt and water. Base + Acid --> Salt +

This lab dealt with determining the percentage Acetic Acid (CH3COOH) in Vinegar. The main purpose of the experiment was to make sure if the vinegar solution has the right amount of acetic acid, which is about 5%, using the titration technique. The hypothesis is that the percentage of acetic acid in the vinegar solution used will be very close to the usual percentage of 5%. The experiment was to use the standard solution of NaOH to titrate the given vinegar solution to determine the percent concentration

on the pH scale, substances identification as an acid or a base vary and water is usually the neutral midpoint on the scale. The pH strip turns a warm color when in contact with an acid and turns a cold color when in contact with a base. Distilled water is water in its purest form, while tap water has been in contact with various other compounds. From this test, it can be concluded that water is naturally acidic and is only displays base like qualities after it has interacted with other compounds

What effect do acids and bases of varying PH levels have on the efficiency of catalase? Catalysts are an extremely important part of the experiment, but to understand catalyst you first must understand Activation energy. Activation Energy is “the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.” (Encyclopedia Britannica, "activation energy | chemistry"). A Catalyst is “is a substance

Main role of an Anion ion membrane is to conduct hydroxyl ions at very high rates from the cathode to the anode where reduction and oxidation of O2 and H2 occur. The AEM and its integration with the electrodes form the heart of the alkaline fuel cell. If the transport through the AEM is not sufficiently high and highly selective, the corresponding fuel cell will not find any practical application. Different types of transport mechanisms occurring in AEMs, is taken from the large amount of literature