Chemistry

Henry Edward Armstrong FRS[1] (6 May 1848 – 13 July 1937) was an English chemist. Although Armstrong was active in many areas of scientific research, such as the chemistry of…

The composition of hydrated crystals is obtained by weighing before and after heating. X, the ratio of moles of water for each mole of copper sulfate, is determined through calculation….

Luminol can be prepared from 3-nitrophthalic acid by treatment with hydrazine followed by reduction of the first product by sodium dithionite.Luminol is a chemiluminescent compound. Luminol also exhibits properties that…

The goal of most quantitative chemical analysis measurements is to estimate the relative abundance of an analyte in a chemical sample. For solid and liquid samples, a very common expression…

In a laboratory experiment, a student reacted 2. 8 grams of Fe (s) (steel wool) in excess CuSO4 (aq), according to the following balanced equation: Fe(s) + CuSO4 (aq) ->…

The rate of reaction is the speed in which a reaction takes place. This can be measured by the rate in which a reactant is used up, or the rate…

Everyone enjoys the amazing firework shows on the Fourth of July with the beautiful vibrant colors and sparks every year. Fireworks have been part of this world for a very…

Purpose: To determine the percent by mass of water in a hydrate of copper (II) sulfate hydrate. Hypothesis: I hypothesize that when the solution is heated the hydrate will convert…

Water flows in and out of cells in an attempt to attain a state of equilibrium. The concentration of solutes to solvent in the cells environment is the cause of…

One of the main things people do when they feel great chemistry between one another is get married. Some couples are unable to maintain their relationship and they get a…

Ionic Reactions ResultsB – Do your results agree with your expectations from the solubility rules/table?Our results seemed to largely agree with the established solubility rules/table; however, a few reactions with…

Precipitates are electrically uncharged. In this experiment all of the precipitates result from the exchange of positive and negative ions between reacting solutions of two ionic compounds. Thus, in this…

Chemistry: The chemistry is the study of substances specially their structure, properties, transformations and the energy accompanying these transformation. Chemistry is very important within our daily lives. We are using…

Nature has provided the perfect laboratory for all the principles of life and has gradually unfolded her truths to the ever-searching scientist. With all his knowledge and skill, he has…

The cytoplasm and extracellular environment of the cell are aqueous solutions. They are primarily composed of water (the solvent), and a variety of dissolved solutes, such as sugars, amino acids,…

A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In…

PurposeThe purpose of this experiment was to separate this mixture into components, determine the mass and percentage of each component. In addition to test the accuracy of an alternative method…

An enzyme is something that helps to speed up a chemical reaction. The enzyme changes from reaction to reaction, but it always has the same impact. However, certain variables may…

As a freshman in college I was among many who were not “hard science” majors. Although science classes were required regardless of major, several sections were set aside for those…

In thermodynamic chemistry, the first law state that energy cannot be created nor destroyed but can be transferred from one form of energy to another e. g. from chemical energy…