Gravitational constant

how the Henderson-Hasselbalch equation works and to apply and hone the skills of pipetting, buffer-making, pH-meter use and graphing. The primary goal of the practical was to determine the pKa value of a weak acid. The Ka is an acid dissociation constant, it is a quantitative measure of the strength of an acid in solution. The pKa is defined as the negative log of the Ka, pKa= -log Ka. The lower the value for the pKa the more acidic the acid (greater concentration of H+ ions). The pKa of a…

Titrations of a strong acid or base with a weak acid or base yield results that greatly differ then a strong-strong titration. The strong-weak titrations allow for an in depth analysis of the half-equivalence point as well as buffers. The half equivalence point allows the calculation of pH from pKa, as they are both equal at the half equivalence point, proven by the Henderson Hasslbach equation. It was Henderson in 1908 that created an equation allowing for the logarithmic calculation for pH…

Titrating Vinegar with Sodium Hydroxide (NaOH) Introduction Acids are anions that have at least one hydrogen cation tacked onto their molecular formulas. The Bronsted definition of an acid states that acid is a proton, H+, donor.3 Acids can fall into one of two categories: they can be strong or weak. Strong acids completely dissociate their H+ and weak acids only partially dissociate their H+.3 This means that a strong acid cannot return to its initial state once it undergoes a reaction. On the…

Background One of my project this semester was to improve the Cresyl Violet (CV) staining protocol used in the laboratory. Cresyl Violet is a dye used to stain brain tissues and it is commonly used in histological sectioning. The dye is basic and therefore it binds to ribosomes that are RNA rich and nuclei of cells, which are acidic. Also, the dye leaves a purple color on the stained neuronal tissues. For the purpose of most of our studies, Cresyl Violet staining is used to analyze the lesion…

Title: To what extent does strong and weak acids differ in affecting the course of titrations. Introduction: The real life application that comes from this experiment links to agriculture. In the past decade, industrial dumping has become a controversial topic. Dumping hazardous wastes into river, ocean, and soil has resulted in a dramatic change in pH of the non-renewable resources and leads to a destruction in the ecosystem. Specially in agriculture, crops cannot grow in acidic soil, so it is…

The Determination of the Properties of Acids and Bases Using the Acetic Acid and Sodium Acetate Buffer System Purpose The purpose of this experiment was to explore some of the properties of the acetic acid and sodium acetate buffer system, such as the greatest buffering capacity and the acid and base neutralization ability of several different concentrations of this buffer. Reagents The reagents used were the following: 0.10 M acetic acid, 0.010 M acetic acid, 0.60 M acetic acid, 0.60 M…

What are buffer solutions? Buffer solutions are solutions in water that mark the mixture of acids and bases. They assist in neutralization response to a certain quantity. Acidic buffer answers are those that have robust acids and weak bases as their components. they're used for neutralizing alkaline solutions. Alkaline or primary buffer answers are those who have sturdy alkalis and weak acids within themixture. they're used for neutralizing acidic aqueous answers. Buffer solutions in the blood…

The rate at which a reaction occurs, referred to as reaction rate, is a type of reaction property that directly measures the extent of a reaction. Changes in concentration affect reaction rates in chemical formulas, and if the reaction is not specifically known, the rate cannot be determined. The rates are given in negative or positive measurements depending on whether the concentration is a reactant or product. Knowing this, the first step in finding the reaction rate would be to determine the…

equilibrium of the molecules. During this lab we will separate two compounds from one solute that will be formed by amalgamating a ‘slurry’ – provided by the instructor. Resin or cellulose is used to create a sound support unit in order maintain a constant positive or negative charge respectively, this will allow separation to occur when equilibrium is shifted during the reaction. The column will have a support unit – composed of either cellulose or resin, inserted with varying concentrations of…

I am going to be talking about the different types of acidosis and alkalosis. There are two types of this and they are respiratory acidosis and respiratory alkalosis, and metabolic acidosis and metabolic alkalosis. The purpose of this paper is to provide you with the definitions, causes, symptoms, and treatments of these conditions. Acidosis is an excessive amount of acid in the blood that causes pH levels to fall below 7.35. Alkalosis is an excess of base in blood that causes pH to rise above…