Avogadro constant

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…

and B3 and their diluted versions, the following graphs can be drawn: Figure 2- A graph showing the relation between concentration of bromophenol blue in M and their absorbance for the acidic form of the molecule, showing the molar absorptivity constant of the molecule at wavelengths 440 nm and 590 nm. The reading with concentration 6 x 10-4 M at wavelength 440 nm was discarded as it is too off from the trend line that it is not following the trend at all. The deviated reading may be caused…

Introduction This extended experimental investigation (EEI) investigated the effect in which concentration had on the rate of reaction. The purpose of this experiment is to test different concentrations of hydrochloric acid with sodium thiosulfate and to see how long it would take until the cross underneath the flask is no longer visible through the milky white solution. Collision theory A collision is when two or more object run into each other. But collision theory is, that only some…