Essays on Redox

Calculations for ΔG and KeqΔG=-NFECELL=-296.4850.45=-86836.5ΔG=-RTlnKEQ-86836.5=-8.3144293lnKEQlnKEQ=-86836.5-2436.1192lnKEQ=34.65e34.65=KEQKEQ=3.545 Based on the numerical value for Ecell (measured), the reaction is spontaneous. Being that the redox reaction has a positive value for Ecell, the reaction is spontaneous. It would cease to be spontaneous if the Ecell value is negative (Aus-e-tute, p.1). Based on the numerical value for delta G (calculated), the reaction is spontaneous. Delta G, or Gibbs free energy can have a positive, negative or null value. A reaction is non spontaneous when delta G is positive, and spontaneous when the value is negative. A reaction is said to be at ...

A proposal in partial fulfillment of the requirements for the degree of

Introduction Wheat (Triticum sp.), an extensively adapted crop, is one of the primitive and primary staple food crops in the world. Wheat is cultivated from temperate; dry to irrigated or rain-fed areas, to warm, humid or cold conditions. Such a high adaptability is attributed to its intricate genome (Acevedo et al., 2002). Wheat cultivation covers more land area compared to other commercial crops and endures to be an essential food grain for humans (Curtis, 2002). Estimations reveal that by 2050, the population of the world will reach 9.1 billion (34 percent greater than today); correspondingly, the food requirement and ...

Mechanical ventilation (MV) causes oxidative stress that is responsible for adverse consequences on organs. In a situation of MV, the excessive pressure impairs the function of the mitochondrial respiratory chain leading to oxidative and nitrosative stress (Kavazis, 2009; Hafner et al., 2014). MV is commonly associated with hyperoxia where an excess of oxygen is provided. In such a case an oxidative stress can be induced when the oxygen pressure in the alveolar exceeds that of the normal breathing conditions because the biological system is not able to readily detoxify the environment from components such as reactive oxygen species (ROS) ( ...

Healthy behaviors play a key role in daily life. Yet, certain unhygienic practices tend to interfere with the health and induce a risk to the overall life. These practices could be high-fat diet, alcohol, and smoking. There is a need to know much about these. In such context, the present description deals with a topic “ What will kill you first, a smoking, a high-fat diet or alcohol?”.

Health -related risk factors:

A risk factor is any quality, trademark or presentation of a person that improves the probability of building up an ailment or damage. A few illustrations of the more vital danger elements ...

QUESTIONS ON BIOCHEMISTRY

Questions on Biochemistry Describe the difference between an obligate and a facultative aerobe. Obligate and facultative aerobes are the same in terms of their ability to use oxygen in their respiration process. However, obligate aerobes requires oxygen to oxidize substrates such as sugar and fat to produce ATP (energy). Obligate aerobes are more efficient in converting substrates to ATP. The key process in aerobic respiration is the conversion of sugar to ATP shown in reaction 1 below:

In the reaction 36 molecules of ATP is produced per molecule of glucose. It is actually a slow process which comprises 3 ...

Abstract

This experiment sort to find an accurate and most viable method that would be used in laboratories to the measurement of iron concentration in aqueous samples. The methodologies that were identified for further analysis included; colorimetric assay (molecular spectroscopy), flame atomic absorption spectroscopy, redox titration (volumetric) and cation exchange chromatography (EMA technique). These methods were analyzed of their advantages and later subjected to a validation test. In the process, a wide range of CRMs were used alongside six other samples that contained unknown iron concentration.

The experiment was thus, geared towards providing answers to statements like; the necessity of quantification of ...