Cathode

Tiny particles react with each other every second to sustain our daily lives. These particles are called atoms, and they are the most basic and indivisible units of matter. They retain their identity through chemical reactions, yet they are so small that even the strongest microscope cannot detect them. The reasoning behind atomic reactions intrigued many intellectuals. To understand more about this concept, they had to comprehend the compositions of these particles. Although the scientist and…

All heartbeats consist of a mechanical component and an electrical component. The heartbeat is created by cardiac depolarization caused by electrical currents that induce muscle contraction. The electrical component of the heartbeat begins in the Sinoatrial (SA) Node and its function is to send electrical impulses that stimulate your heart to beat, and these impulses induce the atria to contract. As the atria contract, the impulse moves on to the Atrioventricular (AV) node which leads the…

High temperature proton exchange membrane fuel cells (HT-PEMFCs) are a promising clean technology, especially for automobile applications.1 These devices generate electricity from the chemical reactions that occur in the anode side of the cell, using H2 as a fuel and generating heat and water as by-products.2, 3 However, experimental studies using HT-PEMFCs show that degradation of the cell can occur after certain hours of operation (around 500 hours).4 Some of the factors that contribute to the…

He discovered the electron through a series of experiments. The experiments were designed to study the nature of the electric discharge in a high-vacuum cathode ray tube. As thomson conducted the experiment he noticed some anomalies. He interpreted the anomalies as the evidence of smaller bodies that are far smaller than the atom. The discovery of the atom had drastic impacts on the world. The discovery led…

Also, these others divalent cations may be as well presented in the other two water samples. As for the AA method, each machine have a specific cathode lamp that emits a light of a certain wavelength so that the desired divalent cation measurement could be recorded, so basically it measures the hardness of 1 divalent cation in the water sample rather than measuring the total hardness of the…

What is the most effective pH level of pectinase solution that is used on the average human diet? Since no prior research has been done on this topic, one must delve into the topic of pectinase, how it works, why it’s used so commonly in the apple juice and wine industry, electrolysis, hydrolysis, and the contents of an average human diet, to properly understand the subject. Pectinase, also known as pectic enzyme, is composed of chemicals such as polygalacturonase (C43H67N15O12S2), pectolyase,…

X-rays were discovered in 1895 by Wilhelm Conrad Roentgen, a Professor at Wuerzburg University in Germany. While working with a cathode-ray tube in his laboratory, Roentgen observed a fluorescent glow of crystals on a table near his tube. In the past, people were unaware of how harmful x-rays are, because they are invisible. Scientists and researchers working in the radiography field were not aware of the effect on the body after continuous exposure. When radiography was in its infancy, it was…

Chapters 7, 8 and 9 were all about looking at the different effects of television on American culture and on the lives of everyday Americans through programming. In chapter 11, Mittell looks at television through a different perspective in order to get new insight into the effects of television on America and the American lifestyle. In order to understand Mittell’s approach to analyzing television in this chapter, it is important to look at the medium of television from a technological…

1. Which one of the following would make the most suitable catalyst in the decomposition of hydrogen peroxide (H2O2)? A. Carbon dioxide (CO2) B. Sodium chloride (NaCl) C. Magnesium oxide (MgO) D. Manganese dioxide (MnO2) 2. If the temperature of a reaction is decreased, what effect will this have on the rate of reaction? A. It will have no effect. B. The reaction will stop. C. The rate of reaction will increase. D. The rate of reaction will decrease. 3. Given the equilibrium reaction in a closed…

The purpose of this lab is to calculate a value for Avogadro’s number and compare it to the actual value for Avogadro’s number. Avogadro’s number will be determined by setting up an electrochemical cell to oxidize a copper electrode. The results of the amount of copper deposited and the average current used will be used to calculate a value for Avogadro’s number. Techniques used: In this experiment, different techniques will be used to collect the required data, such as taking the mass of…